Puropse: To evaluate a modified trabeculectomy technique for glaucoma filtering surgery through a clear corneal flap without performing a conjunctival incision.
Methods: The procedure was performed on 27 glaucomatous eyes with uncontrolled TOP. A corneal flap 2 x 3 mm was raised and a sclera! pocket was dissected 2 to 3 mm posteriorly . The subconjunctival space was entered with a cystitome and a fragment of the floor of the scleral pocket was excised using a Kelly Descemet s membrane punch. The anterior chamber was entered at a limbal incision and iridectomy was performed. Corneal flap was closed with two separate 10-0 nylon sutures.
Results: At 6 month the mean TOP decreased from 32.65mm Hg preoperatively to 12.93 mmHg. 88% of the eyes had an TOP less than or equal to 18 mm Hg without medication.
Conclusion: Corneal trabeculectomy showed as a relatively as a traumatic filteration procedure producing diffuse persistent conjunctival blebs and adequate control of TOP.