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Visual quality and ocular surface study in patients after LASIK surgery technique vs PRK comparing post and pre-op using double pass system technique after puntal occlusion

Poster Details

First Author: J.Palomino SPAIN

Co Author(s):    A. Castillo   J. Cristobal   M. Del Buey   D. Carmona     

Abstract Details


to analyze with the new software for studying ocular surface integrated in OQAS (Visiometrics, Tarragona, Spain) 40 eyes one month after surgery utilizing Lasik technique, with the flap made with microkeratome Zyoptics XP (Bausch & Lomb, Rochester. NY) and a second group that underwent PRK with 0.02% mitomycin C in an application lasting 15 seconds. Smart Plug (Medennium, Irvine. California) was implanted in the lower lachrymal points in both groups, analyzing again one month after the implant the results obtained with the OQAS ocular surface analysis system (Visiometrics, Tarragona. Spain).


Quiron Universitary Hospital of Madrid


visual quality was assessed in relation to the ocular surface measured with OQAS (Visiometrics, Tarragona. Spain) in 40 eyes intervened with Lasik, creating the flap with Zyoptics XP microkeratome (Bausch & Lomb, Rochester, NY), and an additional group of 40 eyes that underwent PRK surface ablation technique with 0.02% mitomycin C in an application lasting 15 seconds. One month after undergoing lachrymal point occlusion utilizing Smart Plug (Medennium, Irvine. California), the test was repeated on these patients.


greater effectiveness in Lasik surgery procedure was observed, with a statistically significant improvement. Similarly, statistically significant improvements were observed in the PRK group as well. No statistically significant differences were found in the studies which compared both groups.


Point occlusion in corneal refractive surgery postop produces statistically significant improvements in patients intervened with PRK as well as in patients intervened with Lasik. No statistically significant differences were found between the values obtained after the occlusion of the lachrymal points performed with both techniques. FINANCIAL DISCLOSURE?: No

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