A cataract is a painless, cloudy area in the lens of the eye that blocks the passage of light to the retina, the nervelayer at the back of the eye, usually causing vision problems.
白内障是指眼内晶状体的无痛性浑浊阻碍了光线到达视网膜(眼球后部的神经层)，从而引起视力问题。
2
The investigators excluded patients with diagnosed glaucoma and looked at the retinal nerve fiber layer (RNFL) in the remaining individuals.
研究人员排除了被诊断出的青光眼患者，并在剩余的个体中观察视网膜神经纤维层(RNFL)。
3
Three essential elements of glaucomatous optic nerve damages are optic nerve rim loss, retinal nerve fiber layer defects (RNFLD) and optic disc linear hemorrhages.