Treatment of High Astigmatism with WaveLight Allegretto Eye-Q Excimer Laser Platform
| Autor: | Ajla Pidro, Maja Bohac, Melisa Ahmedbegovic Pjano, Senad Grisevic, Alma Biscevic, Sudi Patel |
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| Rok vydání: | 2019 |
| Předmět: |
Original Paper
medicine.medical_specialty genetic structures Excimer laser business.industry medicine.medical_treatment Astigmatism LASIK Laser In Situ Keratomileusis General Medicine Mixed astigmatism medicine.disease eye diseases Myopic astigmatism High astigmatism Refractive Surgery Refractive surgery Ophthalmology medicine sense organs business Excimer Laser Dioptre |
| Zdroj: | Acta Informatica Medica |
| ISSN: | 0353-8109 |
| Popis: | Introduction: The WaveLight Allegretto Eye-Q is a flying-spot excimer laser, with a pulse repetition rate of 400Hz, with two galvanometric scanners for positioning laser pulses. The system has an infrared high speed camera operating at 400Hz to track the patient’s eye movements that either compensates for changes in eye position or interrupts the treatment if the eye moves outside a preset predetermined range. Aim: The purpose of this study was to investigate WaveLight Allegretto Eye-Q 400Hz laser delivery platform aimed to correct astigmatism by subjecting the pre and postoperative astigmatic values to vector analysis. Methods: Patients were divided into two groups, depending on the type of astigmatism. Astigmatism was between 2 and 7 diopters (D). A total of 188 eyes (110 patients), 127 eyes (71 patients) with myopic astigmatism and 61 eyes (39 patients) with mixed astigmatism underwent unremarkable LASIK correction on WaveLight Allegretto Eye-Q 400Hz. The preoperative and postoperative sphere, negative cylinder [C] and axis (ø) of manifest refractions were subjected to vector analysis by calculations of the standard J0 (cos [4π(ø-90)/360]xC/2) and J45 (sin[4π(ø-90)/ 360]xC/2). Results: Reporting the key results, we found that J0 significantly reduced after LASIK (p |
| Databáze: | OpenAIRE |
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