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R. Davila Mendoza, A. Navas Perez, Sr., A. Haber Olguin, R. Suarez Sanchez; Corneal Hysteresis After Lasik. Invest. Ophthalmol. Vis. Sci. 2008;49(13):651.
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© ARVO (1962-2015); The Authors (2016-present)
To examine corneal hysteresis in patients after LASIK
At least four measures with the Ocular Response Analyzer (ORA) to evaluated corneal hysteresis in patients with LASIK surgery.
48 eyes of 24 patients after LASIK, mean age was 33 years (range, 24-40). Eighteen of 24 (75%) were female. Mean corneal hysteresis was 7.67 (4.4-18.3), other values were corneal resistance 7.89, mean Goldmann-correlated IOP 14.85 mmHg, mean corneal-compesated IOP 18.37 mmHg, mean CCT was 471.25 µm. The results were compared with 66 eyes of 33 normal subjects, mean age was 33 years (range, 21-59). Nineteen of 33 (57.57%) were female. Mean corneal hysteresis was 8.97 (3.9-14.1), other values were corneal resistance 8.75, mean Goldmann-correlated IOP 17.59 mmHg, mean corneal-compesated IOP 19.33 mmHg, mean CCT was 549.92 µm. The were statistically significant differences in corneal hysteresis.
There are significant differences in corneal hysteresis between normal subjects and patients with LASIK surgery.
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