What is Lattice Degeneration?

Lattice degeneration is a thinning and weakening of the peripheral (outer) retina, the light-sensitive layer at the back of the eye.
It looks like fine white lines or patches shaped like a lattice (net-like pattern) on retinal examination. It is a common finding, seen in about 6–10% of the general population, especially in people who are nearsighted (myopic).

Why Does It Occur?

The exact cause is not fully known, but lattice degeneration is thought to occur because of:
Stretching of the retina in myopic (short-sighted) eyes.
Reduced blood supply in certain areas of the retina.

Does It Affect Vision?

Usually no.
Lattice degeneration by itself does not cause blurring of vision or pain. Most patients are unaware of it until found during a routine eye check-up or dilated retinal examination.

Why Is It Important?

In some people, the thinned retina can develop small tears or holes, which may allow fluid to enter underneath and lead to retinal detachment — a serious sight-threatening condition.

Warning Symptoms to Watch For

Seek urgent eye consultation if you notice:

• Flashes of light (especially in dim light)
• New black floaters or cobweb-like spots
• A curtain-like shadow or loss of part of vision
• These may indicate a retinal tear or detachment.

Treatment

No treatment is needed for most cases — only regular monitoring.

If small holes or tears are detected, you will need prophylactic laser treatment to seal them and prevent retinal detachment.
Patient should ideally do a yearly retinal check-up.

Prognosis

With regular monitoring and prompt treatment of any tears, the long-term outlook is excellent. Most people with lattice degeneration maintain normal vision throughout life.

Remember

Regular eye examinations help detect retinal changes early — timely treatment can prevent vision loss.