|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5573589||1403901||2017||6 صفحه PDF||ندارد||دانلود کنید|
â¢We present a case of fitting corneo-scleral contact lenses in an uncommon case of bilateral keratoconus with high hyperopia and astigmatism.â¢Visual quality was significantly improved, the total high order aberrations decreased by approximately 79% in the RE and 47% in the LE.â¢In addition, prolonged use times with no adverse effects on the cornea were provided.
PurposeTo analyse the visual quality achieved by fitting corneo-scleral contact lenses (CScL) in an uncommon case of bilateral keratoconus, high hyperopia and astigmatism.MethodsA 45-year-old man presented for eye examination due to the unsatisfactory quality of his vision wearing soft toric contact lenses. He presented high hyperopia and astigmatism with bilateral keratoconus. He was fitted with CScL to correct his irregular astigmatism and ocular aberrations. A diagnostic trial set was used in the fitting process and he was assessed according to standardised fitting methodology. Visual acuity, corneal topography, biometry and ocular aberrations were evaluated. The follow-up period was 1Â year.ResultsThe best spectacle-corrected visual acuity was 20/32 with +8.00/â4.50Â ÃÂ 30Â° for the right eye (RE) and 20/25 with +7.75/â2.25Â ÃÂ 120Â° for the left eye (LE). After CScL fitting, visual acuity was improved to 20/20 and 20/16 for the RE and LE, respectively. The patient wore these contact lenses an average of 13Â h a day. The total high order aberrations decreased by approximately 79% in the RE (2.37â0.50Â Î¼m) and 47% in the LE (1.04â0.55Â Î¼m) after CScL fitting. Visual quality and wearing time were maintained after 1Â year wearing CScL. In addition, no adverse ocular effects were found during this period.ConclusionThe present case report describes how the patient had CScL fitted successfully for management of keratoconus with high hyperopia and astigmatism. They provided optimal visual quality, along with prolonged use times and no adverse effects to the cornea.
Journal: Contact Lens and Anterior Eye - Volume 40, Issue 5, October 2017, Pages 351-356