Saturday, December 30, 2006

New Surgical Technique May Offer Alternative for Treating Glaucoma

A new surgical technique may offer an alternative for treating glaucoma, according to researchers at the Weizmann Institute of Science in Rehovot, Israel.

Open-angle glaucoma occurs when fluid pressure builds up inside the eye causing damage to the optic nerve, vision impairment and pain. Traditional surgery uses incisions to allow the extra fluid to escape to another area of the eye where it can be reabsorbed into the bloodstream.

The new, less invasive technique, called enzymatic sclerostomy, uses an enzyme that can be selectively activated on the eye to increase the release of fluid from within the eye, lowering the pressure of the eye in patients with open angle glaucoma, according to the study published in the Archives of Ophthalmology.

The procedure, when tested on 15 patients blinded by open-angle glaucoma, showed immediate and sustained reduction of eye pressure. However, the procedure needs further technical refinement, according to the researchers.