Mathematical consideration of aqueous outflow after trabeculo-electropunture (TEP).

The obtainable postoperative intraocular pressure following a TEP in a glaucoma patient with an intraocular pressure of 30 mm Hg is calculated in accordance with the concept that there is no outflow of aqueous humor along Schlemm's canal. If aqueous humor reaches all collector channel openings in the surgical area without resistance, the postoperative intraocular pressure reads 14.75 mm Hg. This intraocular pressure is obtained at a point when a collector channel of 1 mm length and of 32 mum in diameter or two collector channels of 27 mu in diameter or five collector channels of 22 mu in diameter establish connection with the trabecular opening.