Several eye problems can be harmful, however some of the most severe and potentially dangerous to vision are as follows:

1. Glaucoma: A series of eye conditions known as glaucoma harm the optic nerve, which if unchecked can result in vision loss and eventually blindness.
2. Age-related macular degeneration: Age-related macular degeneration is a disorder that affects the macula, the area in the center of the retina where sharp, detailed vision is produced. It may result in permanent eyesight loss.
3. Diabetic retinopathy: Diabetes can cause diabetic retinopathy, which affects the blood vessels in the retina and impairs eyesight.
4. Retinal detachment: It is a medical emergency that happens when the retina separates from the back of the eye. If it is not treated very once, it can cause permanent vision loss.
5. Cataracts: As the eye’s lens becomes clouded, a common condition known as cataracts results in reduced vision. Even while cataracts can be surgically removed, they are still a serious ailment that, if unchecked, can result in blindness.