CustomVue wavefront-guided LASIK safe and effective for correction of high myopia
July 29, 2008
LASIK generally is considered safe, reliable and effective in the treatment of low to moderate amounts of myopia. But how well does it perform when attempting to correct high amounts of nearsightedness?
A new study published in the August 2008 issue of Cornea finds the wavefront-guided Visx S4 CustomVue laser platform (Advanced Medical Optics, Santa Ana, CA) provides good outcomes for these patients as well.
Study design and methods
The study consisted of a retrospective analysis of wavefront-guided CustomVue LASIK performed on 43 eyes of 29 consecutive patients.
The mean amount of myopia among the patients prior to surgery was -6.89 diopters (D), with a range from -5.81 D to -7.97 D. The mean amount of astigmatism was -0.97 D, with a range from -0.22 D to -1.72 D.
Post-operative uncorrected visual acuity (UCVA) and other factors were evaluated 3 months after the procedure.
Results
The results of the study included these findings 3 months after surgery:
- 58% of the treated eyes had UCVA of 20/20 or better.
- 27.9% of the treated eyes had UCVA of 20/15 or better.
- All treated eyes had UCVA of 20/50 or better.
- 82% of the treated eyes were within 0.50 D of the intended correction.
- 91% of the treated eyes either maintained or gained 1 line of best spectacle-corrected visual acuity (BSCVA) after LASIK.
- No eyes lost more than one line of BSCVA.
Conclusion
Based on the results of the study, the researchers concluded that wavefront-guided LASIK using the Visx S4 CustomVue platform is a safe, effective and predictable treatment for high myopia.