What is the primary issue and reversibility associated with Cataracts?

Clouding of the natural lens, usually treatable by surgical replacement.

Cataracts are recognized as a major global cause of vision impairment, stemming from the opacification or clouding of the eye's natural lens, which is situated behind the iris and pupil. Normally, this lens is responsible for focusing light precisely onto the retina. When it becomes cloudy, vision degrades progressively, colors appear faded, and glare, especially during night driving, becomes hazardous. The reason cataracts are often cited as a cause of preventable blindness is that the condition is generally highly treatable through surgical intervention, where the opaque lens is removed and replaced with a clear, artificial intraocular lens. While access to this surgery remains a barrier in certain regions, the underlying pathology is mechanically correctable.