What Is a Retinal Hole or Retinal Tear?
Inside the eye is a clear, gel-like substance called the vitreous, which is firmly attached to the retina. As we age, the vitreous begins to liquefy, shrink, and pull away from the retina. This pulling force can cause the retinal tissue to tear. If fluid from inside the vitreous passes through the tear, it can cause the retina to detach — leading to a gradual deterioration of the light-sensing cells and potentially permanent vision loss.
What Are the Symptoms of a Retinal Tear?
If you experience any of the following symptoms, see an eye doctor urgently for a retinal examination:
- A sudden appearance of new dark shadows or floaters
- Flashes of light in the eye, similar to lightning or a camera flash
- Narrowing or loss of visual field — retinal tears caused by vitreous traction typically begin at the edges of the retina, causing the peripheral vision to disappear or the visual field to narrow
How Is a Retinal Tear Treated?
A retinal hole or tear can be treated with laser therapy, where a laser is applied around the tear to prevent fluid from passing through and causing detachment. If the retina has already detached, surgery is required. Surgical options include:
- Gas injection to seal the retinal tear
- Vitrectomy (removal of the vitreous)
- Scleral buckle surgery (silicone band placed outside the eye)
After surgery, gas is often injected to push the retina back into place. The patient must remain face-down for at least 2–3 weeks while the gas is gradually absorbed by the eye. For patients unable to maintain this position, silicone oil may be used instead, though a follow-up surgery will be needed to remove it once the retina has healed.
The degree of vision recovery after surgery depends on how long the retina was detached. If detachment has been present for a long time, the retina may be successfully reattached but vision may not fully recover. If you notice any unusual symptoms suggestive of retinal detachment, seek medical attention as soon as possible.
