Purchase this article with an account.
Myung S. Ko, Edward E. Manche; Comparison of Quality of Vision after Wavefront-Guided and Wavefront-Optimized LASIK. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1483.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
To compare the effect of wavefront-guided and wavefront-optimized LASIK by ALCON system on patients’ perceived quality of vision.
36 patients (72 eyes) were enrolled in this prospective study to undergo LASIK surgery using the Alcon Wavelight Allegretto Wave Eye-Q 400 Hz excimer laser system. One eye was randomized to undergo wavefront-guided LASIK and the fellow eye to wavefront-optimized LASIK. Patients answered questionnaires on their visual symptoms and quality of vision preoperatively and at one, three, and six months after surgery. A paired t-test was used to compare symptom severity between the two treated eyes and also between pre- and post-operative symptoms.
Eyes in both groups experienced significantly more glare and haze frequency after 1 month (p=0.001- 0.036), but these symptoms were no longer significant at 6 months postoperatively (p=0.407-0.940). No significant changes in frequency of halos, clarity, double vision, or ghost images occurred in either group at both 3 months and 6 months post-operatively. Eyes in both groups experienced significantly improved vision at 3 and 6 months postoperatively (p <0.001 - 0.013). Of the 31 patients who self-evaluated their overall vision, 32.3% (n=10) reported better vision in the eye receiving wavefront-guided LASIK, 25.8% (n=8) reported better vision in the eye receiving wavefront-optimized LASIK, and 41.9% (n=13) reported no subjective difference in vision between the two eyes. These differences were not statistically significant (p=0.542).
Six months after surgery, patient self-reported visual symptoms were not significantly different in eyes receiving wavefront-guided or wavefront-optimized LASIK by the ALCON system. These symptoms were consistent with the patients’ self-evaluation of their overall vision, which revealed no difference between the two groups. Future evaluations will be performed on this patient cohort at 12 months post-operatively to further evaluate the visual symptoms.
Clinical Trial: :
This PDF is available to Subscribers Only