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Wavefront-optimized LASIK yields insignificant change in corneal densitometry
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Wavefront-optimized LASIK produced insignificant changes in corneal densitometry at 1 year, according to a study.
The prospective cohort study included 43 eyes of 22 patients who underwent LASIK for myopia and/or myopic astigmatism.
Investigators evaluated uncorrected and corrected distance visual acuity, refraction, contrast sensitivity, corneal topography and corneal densitometry at 1 day and 1, 3, 6 and 12 months postoperatively. Anterior and entire corneal densitometry measurements were based on images captured with the Pentacam Scheimpflug imaging system (Oculus).
Uncorrected distance visual acuity was 6/15 or worse in all eyes preoperatively.
Study results showed that uncorrected distance visual acuity was 6/6 or better in 34 eyes (92%) and 6/9 or better in all eyes at 6 months and 12 months. No patients lost two or more lines of corrected distance visual acuity. There was insignificant improvement in contrast sensitivity. All eyes were within 1 D of targeted refraction at 12 months.
Changes in entire and anterior corneal densitometry were insignificant at 12 months. There was no association between corneal densitometry and contrast sensitivity or corrected distance visual acuity, the authors said.
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