<\/span><\/h3>\nPh\u00e2n bi\u1ec7t \u0111\u1ecbnh ngh\u0129a khi\u1ebfm th\u1ecb v\u00e0 m\u00f9. Theo T\u1ed5 ch\u1ee9c Y t\u1ebf th\u1ebf gi\u1edbi (WHO) 1992, khi\u1ebfm th\u1ecb l\u00e0 th\u1ecb l\u1ef1c d\u01b0\u1edbi 6\/18 (3\/10) \u0111\u1ebfn ph\u00e2n bi\u1ec7t s\u00e1ng t\u1ed1i v\u00e0 th\u1ecb tr\u01b0\u1eddng d\u01b0\u1edbi 100<\/sup> t\u1eeb \u0111i\u1ec3m \u0111\u1ecbnh th\u1ecb.<\/p>\n![\"\"](\"http:\/\/cours4.com\/wp-content\/uploads\/2020\/04\/mat-quoc-te-dnd-khiem-thi.jpg\")
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Khi\u1ebfm th\u1ecb \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n b\u00ecnh th\u01b0\u1eddng v\u00e0 gi\u00e1o d\u1ee5c c\u1ee7a tr\u1ebb em, v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c m\u1eb7t sinh ho\u1ea1t h\u00e0ng ng\u00e0y, c\u00f4ng vi\u1ec7c v\u00e0 th\u1eddi gian gi\u1ea3i tr\u00ed c\u1ee7a \u00a0\u00a0\u00a0ng\u01b0\u1eddi l\u1edbn.<\/p>\n
T\u1ec9 l\u1ec7 m\u1eafc : theo th\u1ed1ng k\u00ea tr\u00ean to\u00e0n c\u1ea7u n\u0103m 2002 c\u00f3 124 tri\u1ec7u ng\u01b0\u1eddi khi\u1ebfm th\u1ecb, c\u00f3 t\u1edbi 65 tri\u1ec7u ng\u01b0\u1eddi trong s\u1ed1 n\u00e0y b\u1ecb khi\u1ebfm th\u1ecb kh\u00f4ng ph\u1ee5c h\u1ed3i v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c h\u01b0\u1edfng c\u00e1c d\u1ecbch v\u1ee5 v\u1ec1 khi\u1ebfm th\u1ecb. H\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi b\u1ecb khi\u1ebfm th\u1ecb l\u00e0 ng\u01b0\u1eddi gi\u00e0 v\u00e0 ng\u00e0y c\u00e0ng t\u0103ng nhanh do s\u1ef1 gi\u00e0 h\u00f3a d\u00e2n s\u1ed1. Con s\u1ed1 khi\u1ebfm th\u1ecb \u1edf tr\u1ebb em tuy nh\u1ecf nh\u01b0ng l\u00e0 g\u00e1nh n\u1eb7ng kh\u00e1 l\u1edbn khi t\u00ednh theo n\u0103m s\u1ed1ng.<\/p>\n
C\u00e1c nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p: \u0111\u1ee5c th\u1ee7y tinh th\u1ec3, b\u1ec7nh l\u00fd \u0111\u00e1y m\u1eaft, glocom, \u00a0s\u1eb9o gi\u00e1c m\u1ea1c, t\u1eadt kh\u00fac x\u1ea1, c\u00e1c bi\u1ebfn ch\u1ee9ng ph\u1eabu thu\u1eadt v\u00e0 c\u00e1c nguy\u00ean nh\u00e2n kh\u00e1c.<\/p>\n
<\/span>2. Tri\u1ec7u ch\u1ee9ng<\/strong> c\u1ee7a ng\u01b0\u1eddi khi\u1ebfm th\u1ecb<\/span><\/h3>\n\n- Nh\u00ecn m\u1edd, nh\u00ecn bi\u1ebfn d\u1ea1ng c\u1ea3 g\u1ea7n v\u00e0 xa. Th\u1ecb tr\u01b0\u1eddng thu h\u1eb9p, gi\u1ea3m th\u1ecb l\u1ef1c ban \u0111\u00eam. M\u00f9 m\u00e0u v\u00e0 ho\u1eb7c gi\u1ea3m th\u1ecb l\u1ef1c t\u01b0\u01a1ng ph\u1ea3n gi\u1ea3m n\u1eb7ng.<\/li>\n
- Gi\u1ea3m th\u1ecb l\u1ef1c: l\u00e0 tri\u1ec7u ch\u1ee9ng hay g\u1eb7p nh\u1ea5t c\u1ee7a b\u1ec7nh m\u1eaft g\u00e2y ra khi\u1ebfm th\u1ecb. C\u00f3 r\u1ea5t nhi\u1ec1u b\u1ec7nh m\u1eaft g\u00e2y ra: \u0111\u1ee5c th\u1ee7y tinh th\u1ec3, gi\u00e1c m\u1ea1c ch\u00f3p, s\u1eb9o gi\u00e1c m\u1ea1c, tho\u00e1i h\u00f3a gi\u00e1c m\u1ea1c, lo\u1ea1n d\u01b0\u1ee1ng gi\u00e1c m\u1ea1c, nh\u01b0\u1ee3c th\u1ecb\u2026<\/li>\n<\/ul>\n
![\"\"](\"http:\/\/cours4.com\/wp-content\/uploads\/2020\/04\/mat-quoc-te-dnd-khiem-thi-1-568x402.jpg\")
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\n- Gi\u1ea3m th\u1ecb l\u1ef1c t\u01b0\u01a1ng ph\u1ea3n: c\u00f3 th\u1ec3 x\u1ea3y ra s\u1edbm \u1edf c\u00e1c b\u1ec7nh trong khi th\u1ecb l\u1ef1c c\u00f2n ch\u01b0a b\u1ecb \u1ea3nh h\u01b0\u1edfng ho\u1eb7c b\u1ecb \u1ea3nh h\u01b0\u1edfng t\u1ed1i thi\u1ec3u. B\u1ec7nh nh\u00e2n th\u01b0\u1eddng r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u00e8n v\u00e0 \u00e1nh s\u00e1ng ch\u00f3i. Nguy\u00ean nh\u00e2n hay g\u1eb7p do \u0111\u1ee5c c\u00e1c m\u00f4i tr\u01b0\u1eddng trong su\u1ed1t : \u0111\u1ee5c th\u1ee7y tinh th\u1ec3, s\u1eb9o gi\u00e1c m\u1ea1c, b\u1ec7nh d\u1ecbch k\u00ednh, b\u1ec7nh \u0111\u00e1y m\u1eaft.<\/li>\n
- T\u1ed5n h\u1ea1i th\u1ecb tr\u01b0\u1eddng: c\u00f3 th\u1ec3 \u1edf trung t\u00e2m ho\u1eb7c ngo\u1ea1i vi. Nhi\u1ec1u nguy\u00ean nh\u00e2n g\u00e2y gi\u1ea3m ch\u1ee9c n\u0103ng.\n
\n- T\u1ed5n h\u1ea1i th\u1ecb tr\u01b0\u1eddng trung t\u00e2m: tho\u00e1i h\u00f3a ho\u00e0ng \u0111i\u1ec3m tu\u1ed5i gi\u00e0, l\u1ed7 ho\u00e0ng \u0111i\u1ec3m, ph\u00f9 ho\u00e0ng \u0111i\u1ec3m, b\u1ec7nh Best, lo\u1ea1n d\u01b0\u1ee1ng ho\u00e0ng \u0111i\u1ec3m Stargardt\u2026<\/li>\n
- T\u1ed5n h\u1ea1i th\u1ecb tr\u01b0\u1eddng ngo\u1ea1i vi: \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng nh\u1eadn bi\u1ebft ng\u01b0\u1eddi ph\u00eda b\u00ean. Th\u1ecb l\u1ef1c b\u1ecb gi\u1ea3m m\u1ed9t ph\u1ea7n ho\u1eb7c m\u1ea5t ho\u00e0n to\u00e0n \u1edf b\u00ean th\u1ecb tr\u01b0\u1eddng b\u1ecb t\u1ed5n h\u1ea1i. Nguy\u00ean nh\u00e2n hay g\u1eb7p: vi\u00eam v\u00f5ng m\u1ea1c s\u1eafc t\u1ed1, b\u1ec7nh Glocom, m\u00f9 b\u1ea9m sinh Leber, b\u1ec7nh v\u00f5ng m\u1ea1c tr\u1ebb \u0111\u1ebb non\u2026<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
<\/span>3. \u0110i\u1ec1u tr\u1ecb<\/strong><\/span><\/h3>\nNg\u01b0\u1eddi b\u1ec7nh c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ebfn c\u00e1c c\u01a1 s\u1edf y t\u1ebf \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng khi\u1ebfm th\u1ecb \u0111\u1ec3 t\u00ecm ra c\u00e1c bi\u1ec7n ph\u00e1p v\u00e0 c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng th\u1ecb l\u1ef1c ch\u1ee9c n\u0103ng c\u00f2n l\u1ea1i. Hi\u1ec7n nay v\u1ec1 c\u01a1 b\u1ea3n c\u00f3 2 lo\u1ea1i tr\u1ee3 c\u1ee5 khi\u1ebfm th\u1ecb<\/p>\n