Patients who have undergone LASIK surgery may experience difficulties with their night vision shortly after the procedure. This side effect is usually temporary and doesn't last longer than a few weeks. In some cases, however, night vision problems may persist for a few months. To understand the surgical procedure and how it affects a person's night vision, it's important to know the best course of action.
The most common solution is to wear very thin glasses at night to correct any residual need. Alternatively, patients can undergo a “touch up or improve” LASIK procedure. This is especially helpful for those who experience persistent night vision problems. In order to objectively quantify the phenomenon of the halo, researchers measure the distortion in the size and shape of a light source reported by a population of myopic eyes that have successfully undergone refractive surgery with LASIK.
A wavelength of 505 nm is used, since this is the maximum sensitivity of the human eye under night vision conditions. The results of this study suggest that higher-order aberrations are directly involved in the phenomena of the halo under night vision conditions. This information can be used to guide researchers and surgeons towards optimizing visual results after refractive surgery. If you're considering LASIK eye surgery as an alternative to eyeglasses or contact lenses, it's important to understand that some people may experience problems such as glare, halos, or the appearance of stars in low-light environments (for example, at night or in fog) after the procedure.
However, these issues usually don't last longer than a few weeks. Fortunately, there are several ways to improve night vision after LASIK surgery. Wearing very thin glasses at night can help correct any residual need and improve night vision. Additionally, patients can undergo a “touch up or improve” LASIK procedure if they experience persistent night vision problems.
This procedure can help reduce higher-order aberrations and optimize visual results after refractive surgery. It's important to note that while LASIK surgery can be an effective way to reduce dependence on eyeglasses or contact lenses, it's not without risks. Patients should discuss all potential risks and benefits with their doctor before undergoing any type of eye surgery.