Therefore the new abnormal blood vessels are no longer needed. In many cases, they'll disappear completely after this treatment. The periphery of the retina has many nerves, and some patients find these treatments uncomfortable. Most patients manage well using only eye drops to freeze the eye. But a small number require a freezing injection around the eye, similar to how a dentist freezes a tooth.
Many patients complain of blurred vision while the treatments heal.
This may last anywhere from a few weeks to a few months. The most inconvenient side effect of this technique is that the eyes take longer to adapt to very bright and very dark lighting. This usually improves with time, although never completely in some people. Even when laser treatment start at the proper time, many patients experience bleeding inside the eye. This usually clears by itself over three to four months, although most people are left with residual small floaters.