{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T10:47:21Z","timestamp":1773053241684,"version":"3.50.1"},"reference-count":38,"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>Purpose<\/jats:italic>. To assess visual function using Optical Quality Analysis System (OQAS) at varying levels of contrast in pseudophakic eyes.<jats:italic>Methods<\/jats:italic>. The study included patients admitted to Seoul St. Mary\u2019s Hospital between January and February 2012: 143 pseudophakic eyes with one of five intraocular lens types, examined 2\u20136 months after cataract surgery, and 93 normal eyes (enhanced visual acuity (VA) &lt; 0.1\u2009logMAR) in age-matched controls. Subjects were examined at three contrast levels using the OQAS.<jats:italic>Results<\/jats:italic>. At 100%, 20%, and 9% contrast, simulated mean VA was<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">16<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">18<\/mml:mn><\/mml:math>\u2009logMAR,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">30<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">18<\/mml:mn><\/mml:math>\u2009logMAR, and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">52<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0.1<\/mml:mn><mml:mn fontstyle=\"italic\">7<\/mml:mn><\/mml:math>\u2009logMAR, in normal eyes, and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">16<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">12<\/mml:mn><\/mml:math>\u2009logMAR,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">33<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0.2<\/mml:mn><mml:mn fontstyle=\"italic\">0<\/mml:mn><\/mml:math>\u2009logMAR, and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">56<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">0<\/mml:mn><mml:mo>.<\/mml:mo><mml:mn fontstyle=\"italic\">21<\/mml:mn><\/mml:math>\u2009logMAR, respectively, in pseudophakic eyes. Simulated VA decreased significantly when contrast was reduced, regardless of ocular status, age group, and lens type (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M7\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.05<\/mml:mn><\/mml:math>). There were no significant differences between normal and pseudophakic eyes among subjects aged 50\u201369 (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M8\"><mml:mi>p<\/mml:mi><mml:mo>&gt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.05<\/mml:mn><\/mml:math>). Among subjects aged 70\u201379, pseudophakic eyes showed improved simulated VA (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M9\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn fontstyle=\"italic\">0.000<\/mml:mn><\/mml:math>) and objective scattering index values (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M10\"><mml:mi>p<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn fontstyle=\"italic\">0.0<\/mml:mn><mml:mn fontstyle=\"italic\">08<\/mml:mn><\/mml:math>).<jats:italic>Conclusions<\/jats:italic>. Patients with intraocular lenses have similar or superior visual function when compared to those with normal eyes at 2\u20136 months after cataract surgery, even under low-contrast conditions.<\/jats:p>","DOI":"10.1155\/2016\/4247973","type":"journal-article","created":{"date-parts":[[2016,1,28]],"date-time":"2016-01-28T16:01:24Z","timestamp":1453996884000},"page":"1-8","source":"Crossref","is-referenced-by-count":9,"title":["Assessment of Optical Quality at Different Contrast Levels in Pseudophakic Eyes"],"prefix":"10.1155","volume":"2016","author":[{"given":"Chang Won","family":"Park","sequence":"first","affiliation":[{"name":"Department of Ophthalmology and Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyojin","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Visual Optics, Division of Health Science and Graduate School of 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