Glare and Halos
Overview
Persistent glare and halos after LASIK have several possible causes. The most common is residual refractive error: Remaining myopia, hyperopia, or astigmatism from an over-response or under-response of your cornea to the treatment (causing an unwanted under-correction or over-correction.)
Details
Glare and halos refers to the strange glow and brightness of light that appears around objects when a person looks at said objects directly or when these objects appear in a person’s visual field. In general, issues with glare and halos tend to occur when looking at bright lights, shiny objects, or bright-colored objects.
Diagnosis
After LASIK surgery, glare and halos are among the most common side effects that people experience.
During LASIK surgery, a flap is created in the topmost part of the cornea, which is known as the epithelium. When this flap is created, is it lifted up in order for the overall corneal contour to be adjusted with the use of a surgical laser. The flap is set down after the ablation of the corneal shape is completed. Post-LASIK, bright lights and bright-colored objects can appear to have halos or produce a kind of glare.
Treatment
Glare and Halos can be very successfully countered with Laserfit scleral lenses. Particularly beneficial is the use of our custom wavefront guided optics that are ground into our lens surface at time of manufacture. This allows us to effectively counter specific aberrations, essentially eliminating night vision disturbances for most patients.
