loading...| Preferred Name |
Myopia |
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| Synonyms |
Myopia 近视 |
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| ID |
http://www.tcmkg.com/ISPO/ISPO_00000181 |
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| definition |
近视，系指眼睛视觉成像未能聚焦于视网膜上，而是聚焦于视网膜之前的情形。患者在目视远物会模糊，而视近物相对清楚。其他症状包含头痛跟眼睛疲劳，严重的近视会增加视网膜剥离、白内障及青光眼的风险。 近视是屈光不正的一种。当眼在调节放松状态下，平行光线进入眼内，其聚焦在视网膜之前，这导致视网膜上不能形成清晰像，称为近视眼。此时检查验光则会提示近视度数，例如通常称近视50度，记录为“-0.50D”。 Myopia, also known as near-sightedness and short-sightedness, is an eye disorder where light focuses in front of, instead of on, the retina. This causes distant objects to appear blurry while close objects appear normal. Other symptoms may include headaches and eye strain. Severe near-sightedness is associated with an increased risk of retinal detachment, cataracts, and glaucoma. A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness. |
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| has_exact_synonym |
Myopia 近视 |
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| has_obo_namespace |
symptoms |
|
| id |
ISPO:00000181 |
|
| label |
Myopia |
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| notation |
ISPO:00000181 |
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| prefLabel |
Myopia |
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| subClassOf |