Cataracts

A cataract is a condition in which the lens of the eye become cloudy.

Why is diabetes a risk factor for cataract formation?

The eye contains an anterior and posterior chamber filled with aqueous humor. Aqueous humor contains glucose. If there is a high level of glucose, a lot of it gets converted into sorbitol. The sorbitol collects in the lens and leads to cataract formation.


How do steriod medications lead to cataracts?

Steriods are used as inflammatory medication for conditions like asthma. However they can cause osmotic movement of water into the lens, leading to swelling and opacity. Steriods can also denature the proteins within the eye, leading to opacification.

Thanks to Danny!