Session Title: Refractive 1
Session Date/Time: Friday 03/02/2012 | 08:30-10:00
Paper Time: 08:48
Venue: Hall 1
First Author: : A.Dexl AUSTRIA
Co Author(s): : O. Seyeddain W. Riha M. Hohensinn T. R G. Grabner
Purpose:
To evaluate change in different reading-performance parameters after implantation of the KAMRA corneal inlay (ACI7000PDT) for the improvement of near and intermediate vision.
Setting:
University Eye Clinic, Paracelsus Medical University, Salzburg, Austria
Methods:
This prospective, interventional case series included 24 naturally emmetropic presbyopic patients between 45 and 60 years of age. The corneal inlay was implanted in the non-dominant eye over the line of sight after the creation of a femtosecond laser pocket. Bilateral uncorrected reading acuity, reading distance, mean and maximum reading speed, as well as smallest log-scaled print size (lower case letter of a Radner Reading-Chart) were evaluated in a standardized testing procedure using the Salzburg Reading Desk. RESULTS The reading desk results showed significant changes in each parameter tested. After 24 months the mean reading distance changed from the preoperative value of 46.7cm (95%CI: 44.1-49.3) to 42.8cm (95%CI: 40.3-45.3, p<.004), the mean reading acuity “at best distance” improved from 0.33logRAD (95%CI: 0.27-0.39) to 0.24logRAD (95%CI: 0.20-0.28, p<.005). Mean reading speed increased from 141 words per minute (wpm, 95%CI: 133-150) to 156wpm (95%CI: 145-167, p<.003), maximum reading speed increased from 171wpm (95%CI: 159-183) to 196wpm (95%CI: 180-212, p=.001) and the smallest print size improved from 1.50mm (95%CI: 1.32-1.67) to 1.12mm (95%CI: 1.03-1.22, p<.001).
Conclusions:
After implantation of the KAMRA corneal inlay, there were significant changes in all tested reading performance parameters in emmetropic presbyopic patients. These 2-year results indicate that the inlay seems to be an effective treatment for presbyopia.
Financial Disclosure:
... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, ... travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented
