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One vision problem people are always inquiring about is a spherical aberration. This happens when an increased refractioin of light rays strike the lens of the cornea. In other words, when the human eye sees spheres around lights that are bouncing off any magnifying surface. This disrupts the perception of the light to eye, causing the person to see spheres around light coming from reflections.
Sometimes, spherical aberrations are caused naturally. Other times, this can be a side effect of some laser vision surgeries, including but not limited to LASIK and PRK. Sometimes, the laser used in these surgeries under-correct vision, as the laser moves distally - proximally...the key zone in laser vision correction.
Fortunately, spherical aberrations are now rarely a common concern in this procedure, as the technology behind laser vision correction continues to improve and become increasingly more personalized. Computers now pre-programmed to the specific topography of the patient's eye, significantly reducing such errors. This individualized precision results in less surgeon error, and less side effects overall.
For patients who suffer spherical aberrations naturally, consult with a LASIK surgeon to see if LASIK may be an option to help in reducing these problems. Likewise, if you are suffering from spherical aberrations as a result of laser vision correction, consider seeing if LASIK may be a means to reducing this unwanted side effect. With the developments in both practice and instruments, what used to be a side effect from LASIK can now potentially be remedied with LASIK.