Ophthalmology Diseases眼科疾病

color blindness 色盲 
cataract 白內障 
near-sightedness, myopia 近視眼 
glaucoma 青光眼 
far-sightedness, hyperopia 遠視眼 
presbyopia 老花眼 
trachoma 砂眼 
conjunctivitis 結膜炎 
keratitis 角膜炎 
night blindness, nyctalopia 夜盲症 
astigmatism 散光