Acanthamoeba Keratitis
A rare but serious eye infection associated with poor contact lens hygiene and other factors.

Amblyopia (Lazy Eye)
Amblyopia is a vision development problem in infants and young children that can lead to permanent vision loss. Learn the symptoms, causes and treatments.

Astigmatism
Usually caused by an irregular cornea, astigmatism causes blur at all distances. Also see the Eye Doctor Q&A on astigmatism.

Bell's Palsy
This condition causes sudden paralysis of one side of the face. Because it affects blinking, it can cause severe dry eye.

Blepharitis
Inflammation of the eyelids associated with chronic eye irritation, watery eyes, foreign body sensation, sensitivity to light and crusty debris at the base of the eyelashes.

Blurry Vision
Blurry vision has many causes, from fatigue and eyestrain to serious eye diseases such as glaucoma. A video helps explain blurry vision causes and treatments.

Cataracts
The risk of cataracts increases with age. Learn what causes them and how to protect your eyes.

Cataract Surgery
It's the most common non-elective surgery in the United States. Recent innovations include laser-assisted cataract surgery.
See also: Cataract Surgery Cost | Cataract Surgery Recovery | Choosing a Cataract Surgeon | Cataract Surgery Complications | Intraocular Lenses (IOLs) | Crystalens & Accommodating IOLs | Multifocal IOLs | Mixing Multifocal Lenses | IOLs for Presbyopia FAQ | A Cataract Surgeon Undergoes Cataract Surgery