{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:55:34Z","timestamp":1777881334751,"version":"3.51.4"},"reference-count":18,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ophthalmol Eye Dis"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Laser peripheral iridotomy (LPI) is the current standard of care for primary angle-closure glaucoma. The existing literature lacks evidence regarding the effects of LPI on contrast sensitivity (CS) after the procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>This study evaluates central and peripheral CS in patients undergoing LPI using the computer-based, Spaeth\/Richman Contrast Sensitivity (SPARCS) test.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>We performed a pilot, prospective, interventional cohort study including 30 patients of primary angle-closure suspect (PACS) or primary angle closure (PAC) in both eyes. LPI was performed after a detailed history and clinical examination using standard procedure in all eyes. Intraocular pressure (IOP) and CS testing using SPARCS was performed before, 2 weeks and 3 months after LPI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Data analyses revealed female predominance (66.67%, 20\/30); the mean age of enrolled patients was 49.93\u2009\u00b1\u200910.43 years, and presenting acuity was 0.02\u2009\u00b1\u20090.06 (Log of Minimum Angle of Resolution [LogMAR]). The mean vertical cup-to-disc ratio (VCDR), mean deviation (MD in dB) and pattern standard deviation (PSD in dB) were 0.34\u2009\u00b1\u20090.09, \u20132.36\u2009\u00b1\u20091.72 and 2.34\u2009\u00b1\u20090.81, respectively. There was a statistically significant decrease between the pre- (15.17\u2009\u00b1\u20093.83 mmHg) and 2 weeks post-LPI (11.70\u2009\u00b1\u20091.53 mmHg) IOP ( p\u2009&lt;\u20090.001). However, CS in the pre- (73.47\u2009\u00b1\u20099.88) and 3 months post-LPI (75.20\u2009\u00b1\u200911.98) SPARCS scores did not reveal any statistical difference. The group-wise analysis showed a similar trend between PAC and PACS patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>LPI does not affect central as well as peripheral CS assessment in patients with the primary angle-closure disease.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/25158414221078142","type":"journal-article","created":{"date-parts":[[2022,3,2]],"date-time":"2022-03-02T05:57:54Z","timestamp":1646200674000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of laser peripheral iridotomy on contrast sensitivity using Spaeth\/Richman Contrast Sensitivity test"],"prefix":"10.1177","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6256-4002","authenticated-orcid":false,"given":"Parul","family":"Ichhpujani","sequence":"first","affiliation":[{"name":"Professor, Department of Ophthalmology, Government Medical College & Hospital, Sector-32, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sahil","family":"Thakur","sequence":"additional","affiliation":[{"name":"Department of Ocular Epidemiology, Singapore Eye Research Institute, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tanu","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Government Medical College & Hospital, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2426-3900","authenticated-orcid":false,"given":"Rohan Bir","family":"Singh","sequence":"additional","affiliation":[{"name":"Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA"},{"name":"Department of Ophthalmology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Suresh","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Government Medical College & Hospital, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2022,3,2]]},"reference":[{"key":"bibr1-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2018.01.015"},{"key":"bibr2-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2015.04.015"},{"key":"bibr3-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2017.09.015"},{"key":"bibr4-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9394(89)90663-6"},{"key":"bibr5-25158414221078142","doi-asserted-by":"publisher","DOI":"10.3928\/1542-8877-20030701-04"},{"key":"bibr6-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1136\/bjophthalmol-2014-305223"},{"key":"bibr7-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1038\/s41433-018-0099-y"},{"key":"bibr8-25158414221078142","volume":"123","author":"Prum BE","year":"2016","journal-title":"Ophthalmology"},{"key":"bibr9-25158414221078142","doi-asserted-by":"publisher","DOI":"10.2147\/OPTH.S148467"},{"key":"bibr10-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/S0161-6420(01)00545-0"},{"key":"bibr11-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1007\/s10384-004-0149-9"},{"key":"bibr12-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1097\/01.ijg.0000177213.31620.02"},{"key":"bibr13-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2012.01.015"},{"key":"bibr14-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/S0161-6420(91)32091-8"},{"key":"bibr15-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1016\/S0161-6420(92)38516-1"},{"key":"bibr16-25158414221078142","volume":"60","author":"Trevino R","year":"2019","journal-title":"Invest Ophthalmol Vis Sci"},{"key":"bibr17-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1097\/01.ijg.0000195936.53529.17"},{"key":"bibr18-25158414221078142","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.62.4.198"}],"updated-by":[{"DOI":"10.1177\/25158414231158418","type":"correction","label":"Correction","source":"publisher","updated":{"date-parts":[[2023,2,19]],"date-time":"2023-02-19T00:00:00Z","timestamp":1676764800000}}],"container-title":["Therapeutic Advances in 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