PRK Risks -- Glare and Halos
Glare, Halos, starbursts and difficulty in seeing in dim light are possible complications of this procedure. Although each individual is different, what a patient generally experiences with glare is an inability to see when looking at bright lights.
With halos a patient may see a ring of light around an object, especially at night. There are many factors that may increase your risk for these complications. And in fact, most patients will experience glare or halos at night for the first few weeks to months after surgery. These symptoms tend to get better over time but can take up to a year to improve.
Some patients may find this disabling for night driving. There are eyedrops available to help with this. However, these drops do block out light and may not eliminate night vision difficulties in some patients. You may wish to discuss this with your doctor prior to surgery to see what your individual risk is. In general, people with larger corrections required and larger pupils are at higher risk for these symptoms.
