Tear in retina - central vision?

Question

What would be the best possible return for vision for someone who has had an operation to correct a tear in the central vision of the retina? Shes been told 25% is the worst that she'll get back. How long can a person expect to wait for the full vision that they'll get to return?

Answer 1

There is only a very variable answer to the first part of your question, I'm afraid.
The rest of the retina carries it's own blood supply and survives, detached or not. The central macular region depends on its oxygen from the underlying choroid. In a central detachment, if this connection is lost, the macula starts to suffer permanent damage after only a few hours.
The prospects for good recovery of vision, apart from needing successful surgery to give a good re-location of the retina, depends largely on how long the macula was detached (but not on how long the rest of the detachment had been present, even if it was *near* the macula).
If the surgeons are confident enough to predict 20/80, 6/24 as the worst case, this may (I'm guessing, now) correspond to the vision just prior to sugery and the actual macula may not have totally lost its oxygen supply, giving *chances* of better vision.

Unless the surgery required the replacement of the eye's vitreous with silicone or air, I would consider three months a reasonable figure for final assessment of Rx and vision.
If vitreous replacement has been required it can take a lot longer, as not infrequently a cataract develops secondary to this, requiring removal and correction before the final outcome has been achieved.

Optometrist, retired.

Answer 2

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