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Operative correction of ocular aberrations to improve visual acuity
T Seiler1, M Mrochen, M Kaemmerer
1Department of Ophthalmology in the University of Zürich, Switzerland.
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|October 6, 2000
Summary
Correcting optical aberrations with wavefront-guided LASIK can improve vision beyond 20/20. This study shows that ocular aberrations limit visual acuity, and their operative correction can achieve supernormal vision.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Optical aberrations in the human eye impair retinal image quality.
- These aberrations can be a significant limiting factor for achieving optimal visual acuity.
Purpose of the Study:
- To investigate the impact of correcting ocular optical aberrations on visual acuity.
- To determine if supernormal visual acuity can be achieved through surgical correction of these aberrations.
Main Methods:
- Wavefront-guided laser in situ keratomileusis (LASIK) was performed on 15 eyes.
- This procedure corrected myopia, astigmatism, and ocular aberrations simultaneously.
Main Results:
- One month post-surgery, 27% of eyes achieved visual acuity of 20/10 or better.
- A significant correlation was found between the increase in root mean square wavefront error and improved visual acuity (R2 = 0.79; P = .03).
Conclusions:
- Ocular optical aberrations demonstrably limit human visual acuity.
- Surgical correction of these aberrations, even if not fully optimized, can lead to supernormal visual acuity.