{"id":105967,"date":"2023-08-16T00:00:00","date_gmt":"2023-08-16T00:00:00","guid":{"rendered":"https:\/\/docosan-blog.local\/blog\/uncategorized\/dau-hieu-can-thi\/"},"modified":"2026-03-01T00:20:45","modified_gmt":"2026-02-28T17:20:45","slug":"dau-hieu-can-thi","status":"publish","type":"post","link":"https:\/\/www.docosan.com\/blog\/mat\/dau-hieu-can-thi\/","title":{"rendered":"3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb c\u1ea7n bi\u1ebft \u0111\u1ec3 ph\u00f2ng ch\u1ed1ng v\u00e0 \u0111i\u1ec1u tr\u1ecb"},"content":{"rendered":"<p><em>C\u1eadn th\u1ecb l\u00e0 m\u1ed9t trong nh\u1eefng b\u1ec7nh v\u1ec1 m\u1eaft h\u1ebft s\u1ee9c ph\u1ed5 bi\u1ebfn ng\u00e0y nay, \u0111\u1eb7c bi\u1ec7t \u1edf \u0111\u1ed9 tu\u1ed5i ng\u00e0y c\u00e0ng tr\u1ebb h\u00f3a do t\u00e1c \u0111\u1ed9ng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i nh\u01b0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, l\u1ed1i s\u1ed1ng thi\u1ebfu l\u00e0nh m\u1ea1nh c\u1ee7a ng\u01b0\u1eddi tr\u1ebb, th\u00f3i quen sinh ho\u1ea1t, h\u1ecdc t\u1eadp, c\u00f4ng vi\u1ec7c,&#8230; D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n s\u1edbm \u0111\u1ec3 tr\u00e1nh nh\u1eefng bi\u1ebfn ch\u1ee9ng v\u1ec1 m\u1eaft v\u1ec1 sau. <a href=\"https:\/\/www.docosan.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Doctor c\u00f3 s\u1eb5n<\/a> s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 v\u00e0 s\u1edbm nh\u1eadn bi\u1ebft d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb \u0111\u1ec3 c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c v\u00e0 ch\u1eefa tr\u1ecb k\u1ecbp th\u1eddi.\u00a0<\/em><\/p>\r\n<p><\/p>\r\n<p class=\"wp-block-paragraph\">\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>C\u1eadn th\u1ecb l\u00e0 g\u00ec?\u00a0<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.docosan.com\/blog\/mat\/can-thi\/\" target=\"_blank\" rel=\"noreferrer noopener\">C\u1eadn th\u1ecb<\/a> l\u00e0 m\u1ed9t b\u1ec7nh v\u1ec1 m\u1eaft ph\u1ed5 bi\u1ebfn khi\u1ebfn vi\u1ec7c t\u1eadp trung v\u00e0o c\u00e1c v\u1eadt \u1edf xa tr\u1edf n\u00ean kh\u00f3 kh\u0103n, khi c\u00e1c v\u1eadt \u1edf g\u1ea7n nh\u00ecn r\u00f5 nh\u01b0ng c\u00e1c v\u1eadt \u1edf xa l\u1ea1i b\u1ecb m\u1edd. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc b\u1ea3n \u0111\u1ed3 r\u00f5 r\u00e0ng nh\u01b0ng l\u1ea1i g\u1eb7p kh\u00f3 kh\u0103n khi nh\u00ecn \u0111\u1ee7 r\u00f5 \u0111\u1ec3 l\u00e1i \u00f4 t\u00f4. C\u1eadn th\u1ecb l\u00e0 m\u1ed9t r\u1ed1i lo\u1ea1n t\u1eadp trung m\u1eaft ph\u1ed5 bi\u1ebfn. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c gia t\u0103ng trong nhi\u1ec1u th\u1eadp k\u1ef7.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111i\u1ec1u tr\u1ecb c\u1eadn th\u1ecb b\u1eb1ng c\u00e1ch \u0111eo k\u00ednh \u0111i\u1ec1u ch\u1ec9nh, ch\u1eb3ng h\u1ea1n nh\u01b0 k\u00ednh ho\u1eb7c k\u00ednh \u00e1p tr\u00f2ng, ho\u1eb7c l\u1ef1a ch\u1ecdn ph\u1eabu thu\u1eadt laser.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-83854\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-2.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" width=\"700\" height=\"466\" \/>\r\n<figcaption class=\"wp-element-caption\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\u00a0<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb l\u00e0 m\u1ed9t t\u1eadt kh\u00fac x\u1ea1, ngh\u0129a l\u00e0 m\u1eaft kh\u00f4ng th\u1ec3 nh\u00ecn cong ho\u1eb7c kh\u00fac x\u1ea1 \u00e1nh s\u00e1ng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. M\u1eaft kh\u00f4ng t\u1eadp trung \u0111\u00fang c\u00e1ch \u00e1nh s\u00e1ng \u0111i v\u00e0o m\u1eaft, v\u00ec v\u1eady h\u00ecnh \u1ea3nh \u1edf xa c\u00f3 v\u1ebb m\u1edd v\u00e0 kh\u00f4ng r\u00f5 r\u00e0ng.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\"><strong>C\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i c\u1eadn th\u1ecb sau:\u00a0<\/strong><\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">C\u1eadn th\u1ecb nh\u1eb9<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb nh\u1eb9 (th\u01b0\u1eddng d\u01b0\u1edbi 3 diop c\u1ee7a c\u1eadn th\u1ecb) c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1eadn th\u1ecb th\u1ea5p. D\u1ea5u hi\u1ec7u c\u1ee7a c\u1eadn th\u1ecb nh\u1eb9 l\u00e0 m\u1eaft kh\u1ecfe m\u1ea1nh. \u0110eo k\u00ednh ho\u1eb7c k\u00ednh \u00e1p tr\u00f2ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng kh\u1eafc ph\u1ee5c c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00e0 m\u1ed9t ng\u01b0\u1eddi g\u1eb7p ph\u1ea3i v\u1edbi th\u1ecb l\u1ef1c c\u1ee7a h\u1ecd. D\u1ea5u hi\u1ec7u c\u1ee7a c\u1eadn th\u1ecb nh\u1eb9 th\u01b0\u1eddng kh\u00f3 ph\u00e1t hi\u1ec7n s\u1edbm.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">C\u1eadn th\u1ecb v\u1eeba<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb v\u1eeba ho\u1eb7c c\u1eadn th\u1ecb l\u00e0 c\u1eadn th\u1ecb t\u1eeb 3 \u0111\u1ebfn 6 diop.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">C\u1eadn th\u1ecb n\u1eb7ng\u00a0<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb n\u1eb7ng (c\u1eadn th\u1ecb tr\u00ean 6 diop) c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1eadn th\u1ecb cao. Tr\u1ebb em b\u1ecb c\u1eadn th\u1ecb th\u01b0\u1eddng tr\u1edf n\u00ean c\u1eadn th\u1ecb h\u01a1n khi ch\u00fang l\u1edbn l\u00ean, nh\u01b0ng \u0111\u1ed9 c\u1eadn c\u1ee7a ch\u00fang th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh \u1edf \u0111\u1ed9 tu\u1ed5i 20 tr\u1edf l\u00ean. C\u1eadn th\u1ecb n\u1eb7ng l\u00e0 m\u1ed9t d\u1ea1ng c\u1eadn th\u1ecb nghi\u00eam tr\u1ecdng h\u01a1n. N\u00f3 x\u1ea3y ra khi m\u1ed9t ng\u01b0\u1eddi b\u1ecb c\u1eadn th\u1ecb khi c\u00f2n tr\u1ebb v\u00e0 tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n khi gi\u00e0 \u0111i.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb n\u1eb7ng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng nguy c\u01a1 ph\u00e1t tri\u1ec3n m\u1ed9t s\u1ed1 b\u1ec7nh v\u1ec1 m\u1eaft kh\u00e1c c\u1ee7a m\u1ed9t ng\u01b0\u1eddi, ch\u1eb3ng h\u1ea1n nh\u01b0 <a href=\"https:\/\/www.docosan.com\/blog\/mat\/bong-vong-mac\/\" target=\"_blank\" rel=\"noreferrer noopener\">bong v\u00f5ng m\u1ea1c<\/a>, t\u0103ng nh\u00e3n \u00e1p ho\u1eb7c \u0111\u1ee5c th\u1ee7y tinh th\u1ec3.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">C\u1eadn th\u1ecb b\u1ec7nh l\u00fd<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi b\u1ecb c\u1eadn th\u1ecb b\u1ec7nh l\u00fd, ho\u1eb7c tho\u00e1i h\u00f3a s\u1ebd m\u1eafc th\u00eam c\u00e1c b\u1ec7nh l\u00fd v\u1ec1 m\u1eaft. M\u1eaft c\u0169ng s\u1ebd c\u00f3 c\u00e1c v\u1ea5n \u0111\u1ec1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u00f5ng m\u1ea1c, ch\u1eb3ng h\u1ea1n nh\u01b0: tho\u00e1i h\u00f3a m\u1ea1ng tinh th\u1ec3, l\u00e0 m\u1ed9t lo\u1ea1i teo v\u00f5ng m\u1ea1c l\u00e0m m\u1ecfng v\u00f5ng m\u1ea1c, trong \u0111\u00f3 c\u00e1c ph\u1ea7n c\u1ee7a v\u00f5ng m\u1ea1c b\u1ecb l\u00e3ng ph\u00ed v\u00e0 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">\u0110i\u1ec3m Forster-Fuchs, m\u1ed9t lo\u1ea1i s\u1eb9o tr\u00ean v\u00f5ng m\u1ea1c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0111i\u1ec3m m\u00f9.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb b\u1ec7nh l\u00fd c\u0169ng c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t th\u1ecb l\u1ef1c m\u00e0 k\u00ednh ho\u1eb7c k\u00ednh \u00e1p tr\u00f2ng kh\u00f4ng th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-ed15ddd2 wp-block-buttons-is-layout-flex\">\r\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" style=\"background-color: #d62d68;\" href=\"https:\/\/www.docosan.com\/phong-kham\/benh-vien-mat-sai-gon-cach-mang-thang-8-917?utm_source=google&amp;utm_medium=banner&amp;utm_campaign=booking-phong-kham&amp;utm_id=MSGCMT8\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0110\u1eb7t l\u1ecbch kh\u00e1m m\u1eaft khi c\u00f3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb<\/strong><\/a><\/div>\r\n<\/div>\r\n<p>\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Nh\u00ecn m\u1edd khi nh\u00ecn c\u00e1c v\u1eadt \u1edf xa l\u00e0 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb c\u00f3 th\u1ec3 k\u00e8m theo m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u bao g\u1ed3m:<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<ul class=\"wp-block-list\">\r\n<li><a href=\"https:\/\/www.docosan.com\/blog\/mat\/moi-mat\/\" target=\"_blank\" rel=\"noreferrer noopener\">M\u1ecfi m\u1eaft<\/a><\/li>\r\n\r\n\r\n\r\n<li>Nh\u1ee9c \u0111\u1ea7u<\/li>\r\n\r\n\r\n\r\n<li>Nheo m\u1eaft<\/li>\r\n<\/ul>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ed9t ng\u01b0\u1eddi b\u1eaft \u0111\u1ea7u g\u1eb7p nh\u1eefng tri\u1ec7u ch\u1ee9ng n\u00e0y, h\u1ecd n\u00ean n\u00f3i chuy\u1ec7n v\u1edbi b\u00e1c s\u0129 nh\u00e3n khoa, ng\u01b0\u1eddi c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh xem h\u1ecd c\u00f3 b\u1ecb c\u1eadn th\u1ecb hay kh\u00f4ng. Chuy\u00ean vi\u00ean \u0111o th\u1ecb l\u1ef1c c\u00f3 th\u1ec3 khuy\u00ean d\u00f9ng k\u00ednh ho\u1eb7c k\u00ednh \u00e1p tr\u00f2ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. N\u1ebfu t\u00ecnh tr\u1ea1ng c\u1eadn th\u1ecb c\u1ee7a m\u1ed9t ng\u01b0\u1eddi ti\u1ebfn tri\u1ec3n n\u1eb7ng h\u01a1n, b\u00e1c s\u0129 nh\u00e3n khoa c\u00f3 th\u1ec3 \u0111\u1ec1 ngh\u1ecb ph\u1eabu thu\u1eadt.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-83855\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-3.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" \/>\r\n<figcaption class=\"wp-element-caption\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb \u1edf tr\u1ebb em<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 tri\u1ec7u ch\u1ee9ng c\u00f3 th\u1ec3 b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi lo\u1ea1n th\u1ecb nh\u01b0 gi\u1ea3m th\u1ecb l\u1ef1c, bi\u1ec3u hi\u1ec7n l\u00e0 \u0111au \u0111\u1ea7u, thay \u0111\u1ed5i th\u1ecb l\u1ef1c trong ng\u00e0y, th\u1ec9nh tho\u1ea3ng nh\u00ecn \u0111\u00f4i v\u00e0 \u0111au c\u1ed5. Th\u01b0\u1eddng xuy\u00ean l\u00e1c m\u1eaft ho\u1eb7c l\u1ec7ch nh\u00e3n c\u1ea7u k\u00e8m theo m\u1ea5t th\u1ecb l\u1ef1c.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb v\u1eabn c\u00f3 th\u1ec3 nh\u00ecn r\u00f5 v\u1eadt \u1edf g\u1ea7n, nh\u01b0ng \u0111\u01b0a ra xa v\u1eadt s\u1ebd tr\u1edf n\u00ean l\u1edd m\u1edd, kh\u00f4ng r\u00f5 n\u00e9t v\u00e0 v\u1eadt c\u00e0ng xa th\u00ec m\u1eaft nh\u00ecn c\u00e0ng m\u1edd. C\u00f2n lo\u1ea1n th\u1ecb d\u00f9 v\u1eadt \u1edf g\u1ea7n hay xa th\u00ec h\u00ecnh \u1ea3nh m\u00e0 m\u1eaft thu \u0111\u01b0\u1ee3c v\u1eabn b\u1ecb m\u1edd nh\u00f2e, bi\u1ebfn d\u1ea1ng. M\u1ee9c \u0111\u1ed9 b\u1ec7nh c\u1eadn th\u1ecb s\u1ebd n\u1eb7ng d\u1ea7n theo th\u1eddi gian v\u00e0 c\u00e1ch ch\u0103m s\u00f3c kh\u00f4ng h\u1ee3p l\u00fd. C\u00f2n m\u1ee9c \u0111\u1ed9 lo\u1ea1n c\u1ee7a lo\u1ea1n th\u1ecb s\u1ebd kh\u00f4ng t\u0103ng l\u00ean theo th\u1eddi gian.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb \u1edf tr\u1ebb em\u00a0<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Tr\u1ebb em ph\u00e0n n\u00e0n r\u00f5 r\u00e0ng v\u1ec1 t\u1ea7m nh\u00ecn xa b\u1ecb khi\u1ebfm khuy\u1ebft. Khi\u1ebfu n\u1ea1i \u0111au \u0111\u1ea7u v\u00e0 \u0111au m\u1eaft n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 nguy\u00ean nh\u00e2n do t\u1eadt kh\u00fac x\u1ea1.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">D\u1ea5u hi\u1ec7u tr\u1ebb b\u1ecb c\u1eadn th\u1ecb th\u01b0\u1eddng ph\u1ea3n \u00e1nh qua s\u1ef1 ph\u00e0n n\u00e0n c\u1ee7a ph\u1ee5 huynh v\u1ec1 vi\u1ec7c tr\u1ebb \u0111\u1ecdc s\u00e1ch b\u1eb1ng c\u00e1ch \u0111\u1eb7t s\u00e1ch g\u1ea7n m\u1eb7t, th\u01b0\u1eddng xuy\u00ean m\u1eafc l\u1ed7i khi ghi b\u00e0i tr\u00ean l\u1edbp, kh\u00f4ng th\u1ec3 xem tivi t\u1eeb kho\u1ea3ng c\u00e1ch xa v\u00e0 th\u01b0\u1eddng xuy\u00ean b\u1ecb \u0111au \u0111\u1ea7u l\u00e0m d\u1ea5y l\u00ean nghi ng\u1edd v\u1ec1 t\u1eadt kh\u00fac x\u1ea1.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h3 class=\"wp-block-heading\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb gi\u1ea3\u00a0<\/h3>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb gi\u1ea3 l\u00e0 s\u1ef1 thay \u0111\u1ed5i t\u1ea1m th\u1eddi, kh\u00f4ng li\u00ean t\u1ee5c v\u1ec1 m\u1eb7t kh\u00fac x\u1ea1 c\u1ee7a m\u1eaft sang t\u00ecnh tr\u1ea1ng c\u1eadn th\u1ecb. Khi \u0111\u00f3 \u1ea3nh c\u1ee7a v\u1eadt \u0111\u01b0\u1ee3c nh\u00ecn s\u1ebd h\u1ed9i t\u1ee5 tr\u01b0\u1edbc v\u00f5ng m\u1ea1c (gi\u1ed1ng nh\u01b0 trong c\u1eadn th\u1ecb) c\u00f3 th\u1ec3 do h\u1ec7 th\u1ea7n kinh ph\u00f3 giao c\u1ea3m b\u1ecb k\u00edch \u0111\u1ed9ng qu\u00e1 m\u1ee9c ho\u1eb7c do m\u1ec7t m\u1ecfi th\u1ecb gi\u00e1c hay kh\u00f3 ch\u1ecbu nh\u1ea5t th\u1eddi c\u1ee7a m\u1eaft. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y hay g\u1eb7p tr\u00ean sinh vi\u00ean trong m\u00f9a thi hay nh\u1eefng ng\u01b0\u1eddi l\u00e0m ngh\u1ec1 d\u00f9ng m\u1eaft qu\u00e1 nhi\u1ec1u.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n t\u00ecm \u0111\u1ebfn chuy\u00ean vi\u00ean \u0111o th\u1ecb l\u1ef1c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u00ecnh c\u00f3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb gi\u1ea3 hay kh\u00f4ng.<\/p>\r\n<p>\r\n\r\n\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>Nguy\u00ean nh\u00e2n g\u00e2y d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb x\u1ea3y ra khi nh\u00e3n c\u1ea7u qu\u00e1 d\u00e0i ho\u1eb7c gi\u00e1c m\u1ea1c qu\u00e1 cong. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u00e1nh s\u00e1ng \u0111i v\u00e0o m\u1eaft s\u1ebd d\u1eebng l\u1ea1i tr\u01b0\u1edbc v\u00f5ng m\u1ea1c, thay v\u00ec tr\u00ean \u0111\u00f3. V\u00f5ng m\u1ea1c s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 t\u1ea1o th\u00e0nh h\u00ecnh \u1ea3nh r\u1ed3i g\u1eedi \u0111\u1ebfn n\u00e3o. Khi \u00e1nh s\u00e1ng kh\u00f4ng th\u1ec3 t\u1eadp trung \u0111\u00fang v\u00e0o v\u00f5ng m\u1ea1c, h\u00ecnh \u1ea3nh m\u00e0 n\u00f3 t\u1ea1o ra s\u1ebd b\u1ecb m\u1edd.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c nh\u00e0 khoa h\u1ecdc ch\u01b0a bi\u1ebft ch\u00ednh x\u00e1c nguy\u00ean nh\u00e2n g\u00e2y c\u1eadn th\u1ecb, nh\u01b0ng c\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1, ch\u1eb3ng h\u1ea1n nh\u01b0 di truy\u1ec1n, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n c\u1eadn th\u1ecb.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-83856\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-4.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" width=\"700\" height=\"466\" \/>\r\n<figcaption class=\"wp-element-caption\">S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed qu\u00e1 l\u00e2u g\u00e2y c\u1eadn th\u1ecb\u00a0<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, nh\u1eefng \u0111\u1ee9a tr\u1ebb c\u00f3 cha ho\u1eb7c m\u1eb9 b\u1ecb c\u1eadn th\u1ecb c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng b\u1ecb c\u1eadn th\u1ecb h\u01a1n. Nguy c\u01a1 n\u00e0y t\u0103ng l\u00ean n\u1ebfu c\u1ea3 cha v\u00e0 m\u1eb9 \u0111\u1ec1u m\u1eafc b\u1ec7nh n\u00e0y.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Tr\u1ebb em d\u00e0nh \u00edt th\u1eddi gian \u1edf ngo\u00e0i tr\u1eddi ho\u1eb7c d\u00e0nh nhi\u1ec1u th\u1eddi gian l\u00e0m c\u00f4ng vi\u1ec7c nh\u00ecn g\u1ea7n c\u00f3 th\u1ec3 c\u00f3 nguy c\u01a1 b\u1ecb c\u1eadn th\u1ecb cao h\u01a1n.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u1eadn th\u1ecb th\u01b0\u1eddng ph\u00e1t tri\u1ec3n trong th\u1eddi th\u01a1 \u1ea5u, nh\u01b0ng n\u00f3 c\u0169ng c\u00f3 th\u1ec3 x\u1ea3y ra \u1edf ng\u01b0\u1eddi l\u1edbn do c\u0103ng th\u1eb3ng th\u1ecb gi\u00e1c, x\u1ea3y ra khi m\u1ed9t ng\u01b0\u1eddi l\u1ea1m d\u1ee5ng c\u01a1 ch\u1ebf t\u1eadp trung c\u1ee7a m\u1eaft.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">N\u00f3 c\u0169ng c\u00f3 th\u1ec3 x\u1ea3y ra do c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ec7nh \u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng ho\u1eb7c s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ec7nh \u0111\u1ee5c th\u1ee7y tinh th\u1ec3.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">B\u1ea5t c\u1ee9 ai c\u0169ng c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n c\u1eadn th\u1ecb. Tuy nhi\u00ean, c\u1eadn th\u1ecb c\u00f3 xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n \u1edf tr\u1ebb em v\u00e0 thanh thi\u1ebfu ni\u00ean v\u00e0 c\u00f3 th\u1ec3 tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n khi h\u1ecd g\u1ea7n 20 tu\u1ed5i. Ng\u01b0\u1eddi l\u1edbn th\u01b0\u1eddng b\u1ecb c\u1eadn th\u1ecb n\u1ebfu h\u1ecd m\u1eafc b\u1ec7nh n\u00e0y khi c\u00f2n nh\u1ecf.<\/p>\r\n<h2>Y\u1ebfu t\u1ed1 nguy c\u01a1 g\u00e2y c\u1eadn th\u1ecb<\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u00e1c y\u1ebfu t\u1ed1 nguy c\u01a1 g\u00e2y c\u1eadn th\u1ecb c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Tu\u1ed5i:<\/strong> C\u1eadn th\u1ecb th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u \u1edf \u0111\u1ed9 tu\u1ed5i t\u1eeb 6 \u0111\u1ebfn 14 v\u00e0 c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n cho \u0111\u1ebfn khi b\u1ea1n ngo\u00e0i 20 tu\u1ed5i. \u0110\u00f4i m\u1eaft c\u1ee7a b\u1ea1n \u0111ang ph\u00e1t tri\u1ec3n \u1edf \u0111\u1ed9 tu\u1ed5i n\u00e0y, v\u00ec v\u1eady h\u00ecnh d\u1ea1ng c\u1ee7a \u0111\u00f4i m\u1eaft c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i.<\/li>\r\n\r\n\r\n\r\n<li><strong>B\u1ec7nh \u0111\u00e1i \u0111\u01b0\u1eddng:<\/strong> Ng\u01b0\u1eddi l\u1edbn c\u00f3 th\u1ec3 b\u1ecb c\u1eadn th\u1ecb do m\u1ed9t s\u1ed1 t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe, ch\u1eb3ng h\u1ea1n nh\u01b0 bi\u1ebfn ch\u1ee9ng v\u00f5ng m\u1ea1c <a href=\"https:\/\/www.docosan.com\/blog\/noi-tiet\/dai-thao-duong\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng<\/a>.<\/li>\r\n\r\n\r\n\r\n<li><strong>Th\u01b0\u1eddng xuy\u00ean c\u0103ng th\u1eb3ng th\u1ecb gi\u00e1c:<\/strong> L\u00e0m c\u00f4ng vi\u1ec7c chi ti\u1ebft g\u1ea7n, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u00ean m\u00e1y t\u00ednh ho\u1eb7c \u0111\u1ecdc s\u00e1ch, c\u00f3 th\u1ec3 g\u00e2y c\u1eadn th\u1ecb t\u1ea1m th\u1eddi. Theo th\u1eddi gian, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng v\u0129nh vi\u1ec5n \u0111\u1ebfn t\u1ea7m nh\u00ecn xa c\u1ee7a b\u1ea1n.<\/li>\r\n\r\n\r\n\r\n<li><strong>Ti\u1ec1n s\u1eed gia \u0111\u00ecnh: <\/strong>C\u1eadn th\u1ecb c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t t\u00ecnh tr\u1ea1ng di truy\u1ec1n. N\u1ebfu m\u1ed9t ho\u1eb7c c\u1ea3 hai cha m\u1eb9 c\u1ee7a b\u1ea1n b\u1ecb c\u1eadn th\u1ecb, b\u1ea1n c\u0169ng c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng b\u1ecb c\u1eadn th\u1ecb.<\/li>\r\n\r\n\r\n\r\n<li><strong>\u00cdt th\u1eddi gian \u1edf ngo\u00e0i tr\u1eddi h\u01a1n: <\/strong>C\u1eadn th\u1ecb c\u00f3 th\u1ec3 \u00edt c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n \u1edf nh\u1eefng tr\u1ebb d\u00e0nh nhi\u1ec1u th\u1eddi gian \u1edf ngo\u00e0i tr\u1eddi.<\/li>\r\n\r\n\r\n\r\n<li><strong>Nhi\u1ec1u th\u1eddi gian s\u1eed d\u1ee5ng m\u00e0n h\u00ecnh h\u01a1n: <\/strong>Theo m\u1ed9t nghi\u00ean c\u1ee9u n\u0103m 2017 v\u1ec1 tr\u1ebb em \u1edf Delhi, tr\u1ebb em trong \u0111\u1ed9 tu\u1ed5i \u0111i h\u1ecdc d\u00e0nh t\u1eeb 7 gi\u1edd tr\u1edf l\u00ean s\u1eed d\u1ee5ng m\u00e0n h\u00ecnh trong 1 tu\u1ea7n c\u00f3 th\u1ec3 <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0189774\" target=\"_blank\" rel=\"noopener\">t\u0103ng g\u1ea5p 3 l\u1ea7n nguy c\u01a1 m\u1eafc b\u1ec7nh c\u1eadn th\u1ecb<\/a>.<\/li>\r\n<\/ul>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-83857\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-5.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" width=\"700\" height=\"466\" \/>\r\n<figcaption class=\"wp-element-caption\">\u0110\u00e1i th\u00e1o \u0111\u01b0\u1eddng l\u00e0m t\u0103ng nguy c\u01a1 c\u1eadn th\u1ecb b\u1ec7nh l\u00fd<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>Bi\u1ebfn ch\u1ee9ng c\u1ee7a c\u1eadn th\u1ecb\u00a0<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u1eadn th\u1ecb th\u01b0\u1eddng kh\u00f4ng d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1eaft kh\u00e1c, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n khi m\u1ed9t ng\u01b0\u1eddi gi\u00e0 \u0111i. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1eadn th\u1ecb n\u1eb7ng.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1ed9t ng\u01b0\u1eddi b\u1ecb c\u1eadn th\u1ecb n\u1eb7ng c\u00f3 nhi\u1ec1u nguy c\u01a1 ph\u00e1t tri\u1ec3n c\u00e1c b\u1ec7nh v\u1ec1 m\u1eaft kh\u00e1c. Ch\u00fang c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<ul class=\"wp-block-list\">\r\n<li>\u0110\u1ee5c th\u1ee7y tinh th\u1ec3<\/li>\r\n\r\n\r\n\r\n<li>T\u0103ng nh\u00e3n \u00e1p<\/li>\r\n\r\n\r\n\r\n<li>Bong v\u00f5ng m\u1ea1c<\/li>\r\n<\/ul>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-83858\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-6.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" \/>\r\n<figcaption class=\"wp-element-caption\">Bi\u1ebfn ch\u1ee9ng \u0111\u1ee5c th\u1ee7y tinh th\u1ec3<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ea5t th\u1ecb l\u1ef1c ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn m\u1eaft kh\u00e1c x\u1ea3y ra, t\u00ecnh tr\u1ea1ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1eadn th\u1ecb b\u1ec7nh l\u00fd. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ee9c \u0111\u1ed9 c\u1eadn th\u1ecb qu\u00e1 cao \u0111\u1ebfn m\u1ee9c khi\u1ebfn cho \u0111\u00e1y m\u1eaft b\u1eaft \u0111\u1ea7u b\u1ecb h\u1ecfng.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111i\u1ec1u t\u1ed1t nh\u1ea5t m\u00e0 m\u1ed9t ng\u01b0\u1eddi c\u00f3 th\u1ec3 l\u00e0m \u0111\u1ec3 l\u00e0m ch\u1eadm s\u1ef1 ti\u1ebfn tri\u1ec3n c\u1ee7a c\u1eadn th\u1ecb l\u00e0 \u0111i kh\u00e1m b\u00e1c s\u0129 m\u1eaft th\u01b0\u1eddng xuy\u00ean. Nh\u1eefng ng\u01b0\u1eddi c\u00f3 c\u00e1c y\u1ebfu t\u1ed1 nguy c\u01a1 m\u1eafc b\u1ec7nh c\u1eadn th\u1ecb, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ec7nh \u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng \u0111\u01b0\u1eddng ho\u1eb7c cha m\u1eb9 b\u1ecb c\u1eadn th\u1ecb, c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb vi\u1ec7c \u0111i kh\u00e1m b\u00e1c s\u0129 nh\u00e3n khoa th\u01b0\u1eddng xuy\u00ean h\u01a1n.<\/p>\r\n<p>\r\n\r\n\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>Ch\u1ea9n \u0111o\u00e1n c\u1eadn th\u1ecb<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Chuy\u00ean vi\u00ean \u0111o th\u1ecb l\u1ef1c c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 b\u00e0i ki\u1ec3m tra \u0111\u1ec3 ki\u1ec3m tra xem m\u1ed9t ng\u01b0\u1eddi c\u00f3 b\u1ecb c\u1eadn th\u1ecb hay kh\u00f4ng.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">M\u1ed9t ph\u1ea7n c\u1ee7a kh\u00e1m m\u1eaft s\u1ebd y\u00eau c\u1ea7u ng\u01b0\u1eddi \u0111\u00f3 \u0111\u1ecdc c\u00e1c ch\u1eef c\u00e1i c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau t\u1eeb bi\u1ec3u \u0111\u1ed3 \u1edf ph\u00eda b\u00ean kia c\u1ee7a c\u0103n ph\u00f2ng. Nh\u1eefng con s\u1ed1 c\u00e0ng nh\u1ecf th\u00ec ng\u01b0\u1eddi b\u1ecb c\u1eadn th\u1ecb c\u00e0ng kh\u00f3 nh\u00ecn ra.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Chuy\u00ean vi\u00ean \u0111o th\u1ecb l\u1ef1c c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 g\u1ecdi l\u00e0 phoropter, \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c th\u1ea5u k\u00ednh kh\u00e1c nhau m\u00e0 h\u1ecd c\u00f3 th\u1ec3 \u0111\u1eb7t tr\u01b0\u1edbc m\u1eaft. Khi phoropter \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u00fang v\u1ecb tr\u00ed, m\u00e1y \u0111o th\u1ecb l\u1ef1c s\u1ebd chi\u1ebfu \u00e1nh s\u00e1ng v\u00e0o n\u00f3 \u0111\u1ec3 \u0111o c\u00e1ch m\u1eaft t\u1eadp trung v\u00e0o n\u00f3. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap h\u1ecd x\u00e1c \u0111\u1ecbnh \u0111\u01a1n thu\u1ed1c ph\u00f9 h\u1ee3p cho lo\u1ea1i k\u00ednh c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh th\u1ecb l\u1ef1c c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3.<\/p>\r\n<p>\r\n\r\n\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-83859\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-7.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" \/>\r\n<figcaption class=\"wp-element-caption\">\u0110o th\u1ecb l\u1ef1c gi\u00fap x\u00e1c \u0111\u1ecbnh d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb gi\u1ea3 hay kh\u00f4ng<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>C\u00e1ch ph\u00f2ng ng\u1eeba c\u1eadn th\u1ecb<\/strong><\/h2>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Do c\u1eadn th\u1ecb c\u00f3 li\u00ean quan \u0111\u1ebfn di truy\u1ec1n n\u00ean kh\u00f3 c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba \u1edf nh\u1eefng ng\u01b0\u1eddi c\u00f3 ti\u1ec1n s\u1eed c\u1eadn th\u1ecb trong gia \u0111\u00ecnh h\u1ecd.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">D\u00e0nh th\u1eddi gian \u1edf b\u00ean ngo\u00e0i, d\u01b0\u1edbi \u00e1nh s\u00e1ng ban ng\u00e0y, c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m s\u1ef1 ti\u1ebfn tri\u1ec3n c\u1ee7a c\u1eadn th\u1ecb. \u0110\u1ea3m b\u1ea3o kh\u00f4ng d\u00e0nh qu\u00e1 nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 l\u00e0m nh\u1eefng c\u00f4ng vi\u1ec7c g\u1ea7n g\u0169i, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ecdc ho\u1eb7c l\u00e0m vi\u1ec7c tr\u00ean m\u00e1y t\u00ednh, c\u0169ng c\u00f3 th\u1ec3 h\u1eefu \u00edch.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Nh\u1eefng li\u1ec7u ph\u00e1p c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 ti\u1ebfn tri\u1ec3n c\u1ee7a c\u1eadn th\u1ecb g\u1ed3m c\u00f3:\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<ul class=\"wp-block-list\">\r\n<li>Gi\u1edbi h\u1ea1n th\u1eddi gian tr\u00ean m\u00e0n h\u00ecnh.<\/li>\r\n\r\n\r\n\r\n<li>Th\u1ef1c hi\u1ec7n theo quy t\u1eafc 20 &#8211; 20 &#8211; 20 b\u1eb1ng c\u00e1ch ngh\u1ec9 20 gi\u00e2y c\u1ee9 sau 20 ph\u00fat \u0111\u1ec3 nh\u00ecn v\u00e0o th\u1ee9 g\u00ec \u0111\u00f3 c\u00e1ch xa 6m.<\/li>\r\n\r\n\r\n\r\n<li>D\u00e0nh nhi\u1ec1u th\u1eddi gian h\u01a1n \u1edf ngo\u00e0i tr\u1eddi.<\/li>\r\n\r\n\r\n\r\n<li>Khi th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c g\u1ea7n, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u00ean m\u00e1y t\u00ednh, h\u00e3y c\u1ed1 g\u1eafng gi\u1eef v\u1eadt c\u00e1ch xa 30cm.<\/li>\r\n\r\n\r\n\r\n<li>\u0110i kh\u00e1m m\u1eaft th\u01b0\u1eddng xuy\u00ean.<\/li>\r\n\r\n\r\n\r\n<li>\u0110eo k\u00ednh \u00e1p tr\u00f2ng theo quy \u0111\u1ecbnh c\u1ee7a b\u00e1c s\u0129 nh\u00e3n khoa c\u1ee7a b\u1ea1n.<\/li>\r\n\r\n\r\n\r\n<li>L\u00e0m theo h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng k\u00ednh \u00e1p tr\u00f2ng, bao g\u1ed3m c\u1ea3 vi\u1ec7c kh\u00f4ng \u0111eo ch\u00fang l\u00e2u h\u01a1n ch\u1ec9 d\u1eabn, khi b\u01a1i ho\u1eb7c khi ng\u1ee7.<\/li>\r\n\r\n\r\n\r\n<li>\u0110eo k\u00ednh r\u00e2m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng tia c\u1ef1c t\u00edm (UV).<\/li>\r\n\r\n\r\n\r\n<li>S\u1eed d\u1ee5ng k\u00ednh b\u1ea3o v\u1ec7 khi th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 ho\u1ea1t \u0111\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i ho\u1eb7c ch\u01a1i m\u1ed9t s\u1ed1 m\u00f4n th\u1ec3 thao.<\/li>\r\n\r\n\r\n\r\n<li>Ngh\u1ec9 gi\u1ea3i lao th\u01b0\u1eddng xuy\u00ean khi ti\u1ebfp x\u00fac g\u1ea7n v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00ecn v\u00e0o m\u00e0n h\u00ecnh m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n.<\/li>\r\n\r\n\r\n\r\n<li>Qu\u1ea3n l\u00fd c\u00e1c t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe m\u00e3n t\u00ednh, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u0103ng huy\u1ebft \u00e1p, \u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng.<\/li>\r\n\r\n\r\n\r\n<li>\u0102n m\u1ed9t ch\u1ebf \u0111\u1ed9 \u0103n gi\u00e0u tr\u00e1i c\u00e2y, rau v\u00e0 axit b\u00e9o Omega-3.<\/li>\r\n\r\n\r\n\r\n<li>Tr\u00e1nh h\u00fat thu\u1ed1c.<\/li>\r\n\r\n\r\n\r\n<li>N\u1ebfu b\u1ea1n nh\u1eadn th\u1ea5y b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o v\u1ec1 th\u1ecb l\u1ef1c c\u1ee7a m\u00ecnh, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00ecn m\u1edd ho\u1eb7c c\u00f3 qu\u1ea7ng s\u00e1ng xung quanh \u0111\u00e8n, h\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi b\u00e1c s\u0129 nh\u00e3n khoa c\u1ee7a b\u1ea1n.<\/li>\r\n<\/ul>\r\n<p>\r\n\r\n<\/p>\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-83860\" src=\"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-8.jpg\" alt=\"d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb\" \/>\r\n<figcaption class=\"wp-element-caption\">N\u00ean ngh\u1ec9 ng\u01a1i khi nh\u00ecn qu\u00e1 l\u00e2u v\u00e0o m\u00e0n h\u00ecnh m\u00e1y t\u00ednh\u00a0<\/figcaption>\r\n<\/figure>\r\n<p>\r\n\r\n<\/p>\r\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\r\n<p>\r\n\r\n<\/p>\r\n<h2 class=\"wp-block-heading\"><strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><\/h2>\r\n<p><\/p>\r\n<div class=\"wp-block-rank-math-faq-block\">\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb n\u1eb7ng<\/h5>\r\n<div class=\"rank-math-answer\">\u0110\u1ed9 c\u1eadn th\u1ecb tr\u00ean 6 diop.<\/div>\r\n<\/div>\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb nh\u1eb9<\/h5>\r\n<div class=\"rank-math-answer\">M\u1ecfi m\u1eaft, nheo m\u1eaft khi c\u1ea7n nh\u00ecn xa hay c\u1ea7n t\u1eadp trung v\u00e0o m\u1ed9t \u0111i\u1ec3m.<\/div>\r\n<\/div>\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb gi\u1ea3<\/h5>\r\n<div class=\"rank-math-answer\">C\u00f3 tri\u1ec7u ch\u1ee9ng gi\u1ed1ng nh\u01b0 c\u1eadn th\u1ecb th\u1eadt nh\u01b0 nh\u00ecn xa m\u1edd, m\u1ecfi m\u1eaft, nh\u1ee9c \u0111\u1ea7u, nheo m\u1eaft nh\u01b0ng ch\u1ec9 l\u00e0 s\u1ef1 thay \u0111\u1ed5i t\u1ea1m th\u1eddi trong th\u1eddi gian ng\u1eafn, sau \u0111\u00f3 m\u1eaft tr\u1edf n\u00ean b\u00ecnh th\u01b0\u1eddng.\u00a0<\/div>\r\n<\/div>\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">V\u00ec sao b\u1ecb c\u1eadn th\u1ecb?<\/h5>\r\n<div class=\"rank-math-answer\">C\u1eadn th\u1ecb c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb y\u1ebfu t\u1ed1 di truy\u1ec1n, b\u1ec7nh l\u00fd nh\u01b0 t\u0103ng huy\u1ebft \u00e1p \u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng, th\u00f3i quen sinh ho\u1ea1t l\u00e0m vi\u1ec7c nh\u00ecn g\u1ea7n, \u1edf trong nh\u00e0 nhi\u1ec1u h\u01a1n ngo\u00e0i tr\u1eddi,&#8230;<\/div>\r\n<\/div>\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">D\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb \u1edf ng\u01b0\u1eddi l\u1edbn?<\/h5>\r\n<div class=\"rank-math-answer\">M\u1ecfi m\u1eaft, nh\u1ee9c \u0111\u1ea7u, nheo m\u1eaft, nh\u00ecn g\u1ea7n r\u00f5 nh\u01b0ng nh\u00ecn xa r\u1ea5t m\u1edd.<\/div>\r\n<\/div>\r\n<div class=\"rank-math-faq-item\">\r\n<h5 class=\"rank-math-question\">C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb hay kh\u00f4ng?\u00a0<\/h5>\r\n<div class=\"rank-math-answer\">T\u00ecm \u0111\u1ebfn chuy\u00ean gia \u0111o th\u1ecb l\u1ef1c \u0111\u1ec3 ki\u1ec3m tra th\u1ecb l\u1ef1c c\u1ee7a m\u1eaft.<\/div>\r\n<\/div>\r\n<\/div>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">C\u1eadn th\u1ecb l\u00e0 m\u1ed9t b\u1ec7nh v\u1ec1 m\u1eaft ph\u1ed5 bi\u1ebfn hi\u1ec7n nay, d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb c\u1ea7n \u0111\u01b0\u1ee3c nh\u1eadn bi\u1ebft s\u1edbm, \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb \u1edf tr\u1ebb em \u0111\u1ec3 s\u1edbm t\u00ecm \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 ti\u1ebfn tri\u1ec3n s\u1edbm. B\u1ea1n c\u1ea7n t\u00ecm \u0111\u1ebfn c\u00e1c chuy\u00ean vi\u00ean \u0111o th\u1ecb l\u1ef1c v\u00e0 b\u00e1c s\u0129 nh\u00e3n khoa \u0111\u1ec3 th\u0103m kh\u00e1m ngay khi c\u00f3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb.\u00a0<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-ed15ddd2 wp-block-buttons-is-layout-flex\">\r\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" style=\"background-color: #d62d68;\" href=\"https:\/\/www.docosan.com\/phong-kham\/benh-vien-mat-sai-gon-cach-mang-thang-8-917?utm_source=google&amp;utm_medium=banner&amp;utm_campaign=booking-phong-kham&amp;utm_id=MSGCMT8\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0110\u1eb7t l\u1ecbch kh\u00e1m m\u1eaft khi c\u00f3 d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb<\/strong><\/a><\/div>\r\n<\/div>\r\n<p>\r\n\r\n<\/p>\r\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\r\n<p>\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\"><em>B\u00e0i vi\u1ebft \u0111\u01b0\u1ee3c tham kh\u1ea3o t\u1eeb b\u00e1c s\u0129 v\u00e0 c\u00e1c ngu\u1ed3n t\u01b0 li\u1ec7u \u0111\u00e1ng tin c\u1eady trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc. Tuy nhi\u00ean, Doctor c\u00f3 s\u1eb5n Team khuy\u1ebfn kh\u00edch b\u1ec7nh nh\u00e2n h\u00e3y t\u00ecm v\u00e0 <\/em><a href=\"https:\/\/www.docosan.com\/\"><strong><em>\u0111\u1eb7t l\u1ecbch kh\u00e1m<\/em><\/strong><\/a><em> v\u1edbi b\u00e1c s\u0129 c\u00f3 chuy\u00ean m\u00f4n khi ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u c\u1eadn th\u1ecb.<\/em><\/p>\r\n<p>\r\n\r\n\r\n\r\n\r\n\r\n<\/p>\r\n<ul class=\"wp-block-list\">\r\n<li><a href=\"https:\/\/www.mayoclinic.org\/diseases-conditions\/nearsightedness\/symptoms-causes\/syc-20375556\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.mayoclinic.org\/diseases-conditions\/nearsightedness\/symptoms-causes\/syc-20375556<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.webmd.com\/eye-health\/nearsightedness-myopia\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.webmd.com\/eye-health\/nearsightedness-myopia<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.healthline.com\/health\/nearsightedness#takeaway\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.healthline.com\/health\/nearsightedness#takeaway<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK580529\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK580529\/<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.aao.org\/eye-health\/diseases\/myopia-control-in-children\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.aao.org\/eye-health\/diseases\/myopia-control-in-children<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.aao.org\/eye-health\/diseases\/myopia-nearsightedness\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.aao.org\/eye-health\/diseases\/myopia-nearsightedness<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.medicalnewstoday.com\/articles\/myopia#symptoms\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.medicalnewstoday.com\/articles\/myopia#symptoms<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/www.medicalnewstoday.com\/articles\/how-to-fix-nearsightedness#can-it-resolve\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.medicalnewstoday.com\/articles\/how-to-fix-nearsightedness#can-it-resolve<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0189774\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0189774<\/a><\/li>\r\n<\/ul>\r\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>C\u1eadn th\u1ecb l\u00e0 m\u1ed9t trong nh\u1eefng b\u1ec7nh v\u1ec1 m\u1eaft h\u1ebft s\u1ee9c ph\u1ed5 bi\u1ebfn ng\u00e0y nay, \u0111\u1eb7c bi\u1ec7t \u1edf \u0111\u1ed9 tu\u1ed5i ng\u00e0y c\u00e0ng tr\u1ebb h\u00f3a do t\u00e1c \u0111\u1ed9ng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i nh\u01b0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, l\u1ed1i s\u1ed1ng thi\u1ebfu l\u00e0nh m\u1ea1nh c\u1ee7a ng\u01b0\u1eddi tr\u1ebb, th\u00f3i quen sinh [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":110113,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[385],"tags":[],"class_list":["post-105967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mat"],"acf":[],"featured_image_src":"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-1-600x400.jpg","featured_image_src_square":"https:\/\/www.docosan.com\/blog\/wp-content\/uploads\/2023\/08\/dau-hieu-can-thi-1-600x533.jpg","author_info":{"display_name":"D\u01b0\u1ee3c s\u0129, Th\u1ea1c s\u0129 Nguy\u1ec5n Th\u1ecb Thanh T\u00fa","author_link":"https:\/\/www.docosan.com\/blog\/author\/tunguyen\/"},"_links":{"self":[{"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/posts\/105967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/comments?post=105967"}],"version-history":[{"count":5,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/posts\/105967\/revisions"}],"predecessor-version":[{"id":177718,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/posts\/105967\/revisions\/177718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/media\/110113"}],"wp:attachment":[{"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/media?parent=105967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/categories?post=105967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.docosan.com\/blog\/wp-json\/wp\/v2\/tags?post=105967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}