filtering bleb

filtering bleb

a blister of conjunctiva resulting from glaucoma surgery by which a flap of sclera is created in the eye wall, allowing aqueous humor to percolate out of the eye and underneath the conjunctiva, thus lowering intraocular pressure.
Synonym(s): filtering cicatrix

fil·ter·ing bleb

(fil'tĕr-ing bleb)
A blister of conjunctiva resulting from glaucoma surgery by which a flap of sclera is created in the eye wall, allowing aqueous humor to percolate out of the eye and underneath the conjunctiva, thus lowering intraocular pressure
References in periodicals archive ?
5 mmHg OD and 25 mmHg OS with a functional filtering bleb and a formed anterior chamber in OD.
Medical and surgical options on both eyelid and filtering bleb exist to treat eyelid retraction in patients with glaucoma.
Mitomycin C augmented glaucoma surgery: evolution of filtering bleb avascularity, transconjunctival oozing, and leaks.
After removing the bandage, eye examination was done with particular attention paid to the condition of filtering bleb, cornea for striate keratopathy or oedema, anterior chamber depth and contents, pupil for reaction and shape.
The most common problem was scarring of the filtering bleb in 35% of the cases (35% in the Phaco 1 group and 34% in the Phaco 2 group) and choroidal detachments in 7% (7% Phaco 1 vs.
The goal of glaucoma filtration surgery is to reduce IOP by facilitating drainage of aqueous humor through a surgically created fistula into a filtering bleb, where the fluid is captured and reabsorbed into the systemic circulation.
Particular attention was paid to condition of filtering bleb, cornea for striate keratopathy or edema, anterior chamber for depth and contents, pupil for reaction and shape, and lens.
The most common problem was scarring of the filtering bleb in 41% of the cases (53% in the ECCE group and 39% in the Phaco group) and choroidal detachments in 8% (13% ECCE vs.
Also, the new stent is intended to eliminate the need for a filtering bleb, a permanent, unsightly blister created during surgery that enables drainage postoperatively.
Left eye showed both ciliary and conjunctival congestion, iris holes, iris adhesions, prominent Schwalbe's line and a white reflex in pupillary aperture his vision in left eye was finger counting close to face; in addition he had ciliary staphyloma and a filtering bleb at 12O clock.