Because of this decreased risk, laser procedures usually do not need to be performed in an operating room. Recovery time is reduced and people do not need to restrict their activities after surgery. Lasers are used to treat the ocular complications of diabetes. For glaucoma patients, lasers help to control the pressure inside the eye when medications, alone do not succeed. Lasers are used to seal holes in the retina, and prevent or treat retinal detachments.
Macular degeneration is another condition where laser can sometimes help prevent vision loss.
Finally, laser is also used after cataract surgery to improve upon vision if necessary. In general, Argon and Krypton lasers are used for most retinal conditions. The YAG laser is used for membranes after cataract surgery. At first, blood vessel walls become leaky. Fluid escapes from the blood vessels and into the layers of the retina, causing it to swell.