04.05.2010

CRVO patients "may benefit from bypass procedure"

CRVO patients "may benefit from bypass procedure"

By Adrian Galbreth

People with the condition central retinal vein occlusion (CRVO), which affects thousands of people over the age of 40 and can cause severe vision loss, may benefit from a new type of bypass surgery, experts have suggested.

A study carried out by Dr Ian McAllister, from Lions Eye Institute, Australia, and his research team shows that using lasers to create a bypass around the constricted retinal vein common in CRVO can restore near-normal blood flow to the retina.

In three-quarters of the eyes treated the bypass was successful, with patients reporting greatly improved vision after 18 months, which may lead to more widespread use of laser-induced chorioretinal venous anastomosis (L-CRA), the specialists said.

Dr McAllister added: "In future studies of L-CRA, optical coherence tomography (not widely available when our study began) would be another useful outcome measure for L-CRA effectiveness."

Meanwhile, a new strategy to help doctors determine when to treat the potentially-blinding condition retinopathy of prematurity (ROP) has been developed, revealing that, through eye examinations, doctors can identify infants who are most likely to benefit from early treatment.

by Martin Burns


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