Article

Intravitreal therapy for vein occlusive disease: promising in the short term

Intravitreal therapy for venous occlusive disease is promising in the short term, however, multiple injections are needed, dosing schedules are presently unclear, and rebound has to be evaluated, said Peter Kaiser, MD, of the Cole Eye Institute, Cleveland Clinic, Cleveland, OH.

Intravitreal therapy for venous occlusive disease is promising in the short term, however, multiple injections are needed, dosing schedules are presently unclear, and rebound has to be evaluated, said Peter Kaiser, MD, of the Cole Eye Institute, Cleveland Clinic, Cleveland, OH.

"Venous occlusive disease is the second leading cause of decreased visual acuity in diabetic retinopathy, with 25% of patients having worse than 20/200 vision," Dr. Kaiser said. Laser treatment was not effective for these patients in two randomized studies and observation is the only therapy for central vein occlusion, he said. Laser has shown more improvement for branch vein occlusion but, in the long term, results in only a one-line increase in vision, he added.

Steroids are an obvious choice for vein occlusion since they decrease vascular permeability, stabilize the blood-retinal barrier, and address periphlebitis, according to Dr. Kaiser. In all studies, visual acuity improved. However, the drugs are associated with increased IOP and cataract, he said. The Standard Care versus Corticosteroids for Retinal Vein Occlusion Study is taking a close look at the drugs for retinal vein occlusion.

Anti-vascular endothelial growth factor (VEGF) drugs are also being evaluated. Two doses (1 and 0.3 mg) of pegaptanib sodium (Macugen, OSI/Eyetech/Pfizer) were evaluated in a phase II study. After every 6-week dosing (five injections), the visual acuity increased with both doses, but the end result was not much better than that achieved with laser, Dr. Kaiser reported.

One injection of bevacizumab (Avastin, Genentech) achieves "very nice" clinical features and optical coherence tomography findings, according to Dr. Kaiser. After 4 months, however, the edema returns, he said. Similar results were achieved with ranibizumab (Lucentis, Genentech). The BRAVO and Cruise studies are enrolling patients to evaluate the use of ranibizumab versus controls for branch and central retinal vein occlusion.

Newsletter

Don’t miss out—get Ophthalmology Times updates on the latest clinical advancements and expert interviews, straight to your inbox.

Related Videos
ASCRS 2025: Eva Kim, MD, discusses implantable collamer lenses and high myopia.
Abby Markward, MBA, and Hattie Hayes, editor of Ophthalmology Times Europe, discuss the ASCRS and ASOA meetings
Abby Markward discusses the ASCRS Foundation and the ASCRS Annual Meeting
(Image credit: Ophthalmology Times) Inside ASCRS 2025: Francis S. Mah, MD, takes the helm with a vision for research, education, and advocacy
(Image credit: Ophthalmology Times) NeuroOp Guru: Cranial nerve six palsy with chemosis is a critical clue to cavernous carotid fistula
(Image credit: Ophthalmology Times) Neda Shamie_Controversies in Modern Eye Care 2025
© 2025 MJH Life Sciences

All rights reserved.