alexa Mild Keratoconus: The Intrastromal Corneal Ring As A Good Choice
ISSN: 2155-9570

Journal of Clinical & Experimental Ophthalmology
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9th Global Ophthalmology Summit
March 15-16, 2017 London, UK

Mario Henrique Camargos de Lima, Alex Roque Rizzi, Rosangela Aparecida Simoncelli, Fernando Betty Cresta, William Camargos de Lima, Gustavo Victor and Milton Ruiz Alves
São Paulo University, Brazil
Posters & Accepted Abstracts: J Clin Exp Ophthalmol
DOI: 10.4172/2155-9570.C1.058
Abstract
Background: The implant of intrastromal corneal rings in mild Keratoconus patients is controversial. Purpose: To evaluate in a homogeneous group of mild Keratoconus patients if the intrastromal corneal ring is a good therapeutic choice. Methods: A group of 65 patients with mild Keratoconus were submitted to an implant of Ferrara ring in a single eye. We measured 6 months after the surgery the visual function using clinical dice, and aberrometry. The aberrations especially coma were described independently. Results: There was improvement in UCVA, BCVA and refractometry index in all cases (p <0.001). It was observed that the mean UCVA ranged from 1.09±0.40 to 0.67±0.39 LogMAR, the BCVA ranged from 0.45±0.22 to 0.23±0.18 LogMAR. We also observed significant reduction of refractometric indices; the spherical equivalent ranged from -3.65± 3.30 D to -2.32 ±2.87 D, and the cylinder was ranged from 3.99±1.51 D to -2.24±2, 03 D. The analysis of higher-order aberrations separately showed reduction of the TILT 5.26±2.38 to 3.16±1.79 and the coma from 1.77±0.71 to 1.31±0.75. The other analyzed aberrations (tetrafoil, spherical aberration and high order astigmatism, showed a significant increase (p <0.001). The analysis of the sum of higher-order aberrations showed no statistically significant increase. Conclusion: The intrastromal corneal ring implant in patients with early Keratoconus is a safe and effective procedure, with good topographic, refractive and wave front results.
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