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