Vitreomacular Traction

What it is

With age, the vitreous gel that fills the eye shrinks and peels away from the retina — a posterior vitreous detachment. Usually it separates cleanly. Occasionally it lets go everywhere except the macula, the small central area responsible for detailed vision, where it remains firmly stuck. The gel continues to pull, distorting the delicate architecture of the macula and often drawing fluid into it.

Vitreomacular traction sits on a spectrum. At one end the adhesion is small and the retina is only slightly deformed. At the other, sustained traction can split the retinal layers or open a macular hole. It frequently occurs alongside an epiretinal membrane, which adds its own tangential pull.

Symptoms

• Distortion — straight lines such as door frames, window blinds, or lines of text appearing bent or wavy
• Blurred central vision that glasses do not correct
• Objects appearing smaller or larger in the affected eye than in the other
• A grey or missing patch in the center, if a hole has begun to form

Symptoms are usually in one eye and come on gradually. Because the fellow eye compensates, many patients first notice the problem by chance when covering one eye.

How we diagnose it

Optical coherence tomography (OCT) shows vitreomacular traction unmistakably: a cross-section of the macula with the vitreous face still attached at the center, tenting the retina upward. The scan also tells us how broad the adhesion is and whether a hole is forming — both of which drive the treatment decision. We repeat the scan at follow-up visits to see whether the traction is releasing on its own.

Treatment options

Observation. A meaningful proportion of eyes release spontaneously as the vitreous finishes separating, and the macula returns to normal without any intervention. When the adhesion is narrow, the distortion is mild, and vision is good, watching with serial OCT scans is often the right first move.

Vitrectomy. When vision is meaningfully affected, when distortion is bothersome, or when a hole is developing, small-gauge vitrectomy is the definitive treatment. The vitreous gel is removed, releasing the traction directly, and any epiretinal membrane or internal limiting membrane is peeled at the same time. If a hole has opened, a gas bubble is placed and face-down positioning may be required afterward.

Pharmacologic vitreolysis. An injectable enzyme designed to dissolve the adhesion has been used for selected small, focal cases. Its role today is limited, and we will tell you if it is a reasonable option in your particular eye.

What to expect

When traction is released — spontaneously or surgically — the macula usually settles back into shape over weeks to months, and distortion improves. How much vision returns depends largely on how long the macula was under traction and how much of the underlying photoreceptor layer remains intact, which is one reason we do not let a symptomatic, worsening eye drift indefinitely. We will follow the other eye as well, since the same process can occur there.