{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,28]],"date-time":"2025-05-28T16:30:31Z","timestamp":1748449831391},"reference-count":25,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Ophthalmology"],"published-print":{"date-parts":[[2016]]},"abstract":"<jats:p><jats:italic>Objectives.<\/jats:italic>To evaluate the visual performance of Toris K soft contact lenses in patients with moderate-to-advanced keratoconus and also to compare the results according to cone types, cone location, and severity of keratoconus.<jats:italic>Materials and Methods.<\/jats:italic>Sixty eyes of 40 participants were included in this retrospective study. Uncorrected visual acuity (UCVA), best-spectacle corrected visual acuity (BCVA), best-contact lens corrected visual acuity (BCLCVA), and comfort rating via visual analogue scales (VAS) were measured.<jats:italic>Results.<\/jats:italic>The mean age was 27.3 \u00b1 8.6 years (range: 18 to 54). The mean logMAR UCVA, BCVA, and BCLCVA were 0.85 \u00b1 0.38 (range: 0.30\u20131.30), 0.47 \u00b1 0.27 (range: 0.10\u20131.30), and 0.16 \u00b1 0.20 (range: 0\u20131.00). There were significant increases in visual acuities with contact lenses (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">05<\/mml:mn><\/mml:math>). BCLCVA was significantly better in oval type than globus type (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">022<\/mml:mn><\/mml:math>). UCVA and BCLCVA were significantly better in moderate keratoconus group (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">015<\/mml:mn><\/mml:math>,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">018<\/mml:mn><\/mml:math>). The mean line gain in Snellen was 3.6 \u00b1 1.8 lines (range: 0\u20137 lines). The mean line gain was higher in central cone group than paracentral cone group and oval group than globus group (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">014<\/mml:mn><\/mml:math>,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">045<\/mml:mn><\/mml:math>). The mean VAS score was 8.14 \u00b1 1.88 (range: 6\u201310).<jats:italic>Conclusions.<\/jats:italic>Toris K can improve visual acuity of patients with keratoconus. Toris K is successful even in the moderate and advanced form of the disease.<\/jats:p>","DOI":"10.1155\/2016\/2358901","type":"journal-article","created":{"date-parts":[[2016,4,7]],"date-time":"2016-04-07T00:35:24Z","timestamp":1459989324000},"page":"1-6","source":"Crossref","is-referenced-by-count":3,"title":["Clinical Performance of Toris K Contact Lens in Patients with Moderate to Advanced Keratoconus: A Real Life Retrospective Analysis"],"prefix":"10.1155","volume":"2016","author":[{"given":"Ihsan","family":"Yilmaz","sequence":"first","affiliation":[{"name":"Beyoglu Eye Training and Research Hospital, 34420 Istanbul, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ferah","family":"Ozcelik","sequence":"additional","affiliation":[{"name":"Beyoglu Eye Training and Research Hospital, 34420 Istanbul, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Berna","family":"Basarir","sequence":"additional","affiliation":[{"name":"Beyoglu Eye 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