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B (Bell's Palsy to Blind Spot)

Bell’s Palsy

Wednesday, January 13th, 2010

Paralysis of the facial muscles causing incomplete lid closure resulting in corneal dryness.

Binocular vision

Wednesday, January 13th, 2010

The ability to focus with both eyes simultaneously to form a single image in the brain. Infants often lack it. Without binocular vision there is an inability to visually assess distance.

Blepharitis

Wednesday, January 13th, 2010

Persistent inflamation of the lids. Bacterial. Dandruff like appearance between the lashes causing minor irritation.

Blepharoplasty

Wednesday, January 13th, 2010

Surgery to raise drooping eyelids to prevent loss of visual field.

Blepharospasm

Wednesday, January 13th, 2010

Uncontrollable closure of the lids caused by the progressive dysfunction of the nerve controlling the muscles around the eye. A less serious form may simply cause a twitch of the eyelid.

Blind Spot

Wednesday, January 13th, 2010

A small retinal area where the optic nerve enters the eye known as the optic disc. No other area of blindness should be left uninvestigated. Also known as scotoma.