Bleb: A bladder-like structure more than 5 mm in diameter with thin walls that may be full of fluid. Also called a bulla.
rosacea and seborrheic dermatitis.
Blepharophimosis: Horizontal narrowing of the palpebral fissures (eye slits).
Blepharoplasty: Plastic surgery on the eyelids. Blepharoplasty may be done to correct ptosis (sagging eyelids), remove fatty bulges around the eyes, and eliminate hanging skin from the eyelids, often times a cosmetic procedure to improve appearance but may be medically necessary as when the sagging is blocking the field of vision.
Blepharoptosis: an abnormal, low-lying upper eyelid margin. Drooping eyelids may occur on both sides (bilateral) or on one side only (unilateral), in which case it is more easily noticed. Congenital ptosis is eyelid drooping that is present at birth; when it develops later, it is referred to as acquired ptosis. Blepharoptosis may be barely noticeable […]
Blepharospasm: The involuntary, forcible closure of the eyelids. The first symptoms may be uncontrollable blinking. Only one eye may be affected initially, but eventually both eyes are usually involved. The spasms may leave the eyelids completely closed, causing functional blindness even though the eyes and vision are normal. Blepharospasm is a form of focal dystonia.