Three main types of lens opacity in age-related cataract are known: nuclear, cortical and posterior subcapsular cataract. Nuclear cataract is more commonly found in the elderly population and ...
"Posterior" is the back surface of the lens and "subcapsular" because it is beneath the lens capsule, which is a small "sac", or membrane, that encloses the lens and holds it in place. » Is cataract ...