Related Experiment Videos
[Twilight visual acuity after correction of myopia with LASIK]
M C Knorz1, P Hugger, B Jendritzka
1Baylor College of Medicine, Houston, Texas, USA.
Summary
Laser-assisted in situ keratomileusis (LASIK) may reduce mesopic vision, especially under glare conditions for myopia greater than -5 D. High myopes experience reduced mesopic vision even before LASIK surgery.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Vision Science
Context:
- Limited data exists on mesopic vision following LASIK.
- This study investigates mesopic vision changes after LASIK in myopic eyes.
Purpose:
- To evaluate mesopic vision in myopic eyes before and after LASIK.
- To assess the impact of LASIK on contrast sensitivity under varying light conditions.
Summary:
- Sixty-seven eyes underwent LASIK; mesopic vision was assessed preoperatively and 1 year postoperatively.
- A reduction in mesopic vision, particularly under glare, was observed for myopia exceeding -5 D.
- High myopia (-10 D or greater) showed reduced mesopic vision even preoperatively, with further decline post-LASIK.
Impact:
- LASIK may negatively affect mesopic vision, especially in higher corrections and under glare.
- Findings suggest potential visual quality trade-offs with LASIK for certain patient groups.
- Highlights the importance of considering mesopic visual function in refractive surgery outcomes.