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Posted by: SgtPepper on 2009-02-09, 04:35:28
If you are asking about LASIK, the laser operation for removing glasses, its effects last for the life time. If the operation is successful, the glasses are totally removed or are of minimal power. This remains forever. However after the person reaches the age when accommodation starts suffering, glasses might be needed for near work. If you are asking about the laser operation for diabetic retinopathy, the effects usually start to appear after a few months but the duration for which they help can't be predicted. Laser done after cataract surgeries to remove opacities that develop in the posterior capsule (a membrane behind the lens), is immediately effective and remains so lifelong. Laser for treating Glaucoma is also immediately effective but works for few years (duration is hard to determine) and not always. |
