Age-related eye disorders are quite different from normal eye changes.? They are serious conditions that require ongoing treatment and monitoring from an ophthalmologist or optometrist.? Most do not result in total blindness; instead they cause "low vision": blind spots, blurring, or "tunnel vision" that cannot be corrected with regular glasses. The most common age-related eye disorders are macular degeneration (AMD), cataracts, glaucoma and diabetic retinopathy.

A person may have several of these eye disorders at once, such as glaucoma and cataracts; age-related macular degeneration and diabetic retinopathy; or cataracts, glaucoma, and diabetic retinopathy.

In many cases, surgical and/or medical interventions are only effective in stopping or slowing down the progress of the eye disorder. They cannot restore vision that has already been "lost.