Biomaterial Database

Trabeculectomy with scleral wick. Technique and early results. 1979

M H Kottow

A variation to standard trabeculectomy is described, whereby the trabecular tissue flap is not completely excised, but dissected free, hinged at its nasal end and sutured diagonally across the scleral bed, to act as a wedge between the scleral flap and its bed, in an attempt to decrease the tendency of the sclera to scar into a watertight barrier. In addition, it is suggested that the trabecular flap acts as a wick that aids in the filtration of the aqueous humour. The technique has been used in 24 eyes with good to excellent, short-term, post-operative intraocular tension control in all but 2 patients. Mil complications like transient flat anterior chamber or blood cells in the aqueous occur at rates comparable to other filtering procedures.

UI	MeSH Term	Description	Entries
D007498	Iris	The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.
D003228	Conjunctiva	The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.	Bulbar Conjunctiva,Palpebral Conjunctiva,Plica Semilunaris of Conjunctiva,Plicae Semilunares of Conjunctiva,Tunica Conjunctiva,Conjunctiva, Bulbar,Conjunctiva, Palpebral,Conjunctivas
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D005901	Glaucoma	An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)	Glaucomas
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012590	Sclera	The white, opaque, fibrous, outer tunic of the eyeball, covering it entirely excepting the segment covered anteriorly by the cornea. It is essentially avascular but contains apertures for vessels, lymphatics, and nerves. It receives the tendons of insertion of the extraocular muscles and at the corneoscleral junction contains the CANAL OF SCHLEMM. (From Cline et al., Dictionary of Visual Science, 4th ed)	Scleral Spur,Scleral Spurs,Scleras
D014129	Trabecular Meshwork	A porelike structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates to the SCHLEMM'S CANAL.	Meshwork, Trabecular,Meshworks, Trabecular,Trabecular Meshworks