Comparing Near Visual Acuity Results With 2 Approaches to Presbyopic Treatment: Presby-LASIK Versus Multifocal Diffractive IOL
Narrative Responses:
Purpose
The purpose of this study was to evaluate the final results when using two different treatments for correcting the presbyopic deffect in patients with small or medium hyperopia treated with two methods; the presbylasik treatment and the implantation of an intraocular difracctive lens after removing de cristaline lens.
Methods
It was a retrospective study, the mean age in the LASIK (SUPRACOR from Technolas) group was 54years, a mean refractive preop deffect of 2D for long distance and a addition of +2D. In the I.O.L. group (RESTOR SNAD1 from Alcon) age was 65 years with a +3D mean spherical for distance. Surgeries were made for the same surgeon (J.S.N) and use the s.p.s.s. 15 for windows, results with a p < 0.05 was considered statystically significant. We perform the final visual acuity once the vision was stable, and we made the near visual test correcting the residual astigmatism if needed.
Results
Results were analyzed once the results concerning the final refraction remain stable at least one month(mean 3 month after the operation.), all the near visual acuity test were made in the same conditions of light (photopic) and with a rule for measuring the distance, the residual amount of refraction (astigmatism or other) were corrected. In the Supracor group (30 patients) the mean binocular visual acuity for reading was Jaeger 5 (range J3-J15) at cm, while in the RESTOR (30 patients) the mean near vision was J3 ( J1-J7). The T test show a p value < 0.04 wich it is statistically significant.
Conclusion
The results was clearly more powerful and more stable when making the surgery with an IOL rather than the suparcor method.