{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:37:00Z","timestamp":1787017020519,"version":"build-2736575974"},"reference-count":22,"publisher":"BMJ","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2013,3,19]]},"published-print":{"date-parts":[[2013]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To describe the long-term clinical outcomes after cataract surgery with and without capsular tension ring (CTR) in a group of patients with retinitis pigmentosa (RP).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>A retrospective study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Tertiary referral centre.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>52 eyes (46 patients) with RP.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Interventions<\/jats:title>\n                    <jats:p>Cataract surgery was undertaken between October 2002 and May 2010.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Primary and secondary outcome measures<\/jats:title>\n                    <jats:p>Visual acuity, secondary cataract, capsular contraction syndrome (CCS), intraocular pressure, cystoid macular edema (CME), intraocular lens dislocation and endophthalmitis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The mean age at surgery was about 53\u2005years and the overall mean follow-up was 26\u2005months (range 3\u201360\u2005months). The mean preoperative logarithm of the minimal angle of resolution of the best corrected visual acuity (LogMAR BCVA) in the entire group was 1.45\u00b10.85 (95% CI 1.21 to 1.69) and had increased to 1.32\u00b10.95 (95% CI 1.06 to 1.58, p=0.02). The mean preoperative and the mean postoperative LogMAR BCVA in the non-CTR group (group 1) improved from 1.16\u00b10.8 (95% CI 0.83 to 1.48) to 0.98\u00b10.88 (95% CI 0.62 to 1.33, p=0.02) and in the CTR group (group 2) from 1.74\u00b10.81 (95% CI 1.42 to 2.07) to 1.66\u00b10.90 (95% CI 1.3 to 2.03, p=0.31), respectively. Secondary cataract was observed in a total of 23 eyes (44%), of which 13 (50%) were belonged to group 1 and 10 (38%) to group 2. CCS was seen in a total of two eyes (4%) all under group 1. CME was noted in two eyes (4%), of which one belonged to group 1 and a second one to group 2. Endophthalmitis was not observed in any group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Both surgical approaches were beneficial to the RP patients. Eyes under group 2 showed less long-term postoperative complications. This includes secondary cataract and CCS. Eyes under group 1 performed significantly better in respect of visual acuity. Further research would include insights into the genetic subsets.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2013-002616","type":"journal-article","created":{"date-parts":[[2013,4,26]],"date-time":"2013-04-26T22:59:31Z","timestamp":1367017171000},"page":"e002616","source":"Crossref","is-referenced-by-count":26,"title":["Long-term clinical results after cataract surgery with and without capsular tension ring in patients with retinitis pigmentosa: a retrospective study"],"prefix":"10.1136","volume":"3","author":[{"given":"Tarek","family":"Bayyoud","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karl Ulrich","family":"Bartz-Schmidt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Efdal","family":"Yoeruek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2013,4,26]]},"reference":[{"key":"2024051504315844000_3.4.e002616.1","first-page":"35","article-title":"Investigation about causes of blindness and low vision among members of Blind and Visually Impaired Italian Union (UICI)","volume":"162","author":"Cruciani","year":"2011","journal-title":"Clin Ter"},{"key":"2024051504315844000_3.4.e002616.2","first-page":"456","article-title":"[Improving contrast sensitivity by cut-off filters in high adaptation luminance levels in retinitis pigmentosa]. 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Reduction in intraocular pressure after cataract extraction: the Ocular Hypertension Treatment Study","volume":"119","author":"Mansberger","year":"2012","journal-title":"Ophthalmology"},{"key":"2024051504315844000_3.4.e002616.13","doi-asserted-by":"crossref","first-page":"20056","DOI":"10.1371\/journal.pone.0020056","article-title":"Primary phacoemulsification and intraocular lens implantation for acute primary angle-closure","volume":"6","author":"Su","year":"2011","journal-title":"PLoS ONE"},{"key":"2024051504315844000_3.4.e002616.14","doi-asserted-by":"crossref","first-page":"52","DOI":"10.3341\/kjo.2004.18.1.52","article-title":"Bilateral spontaneous dislocation of intraocular lenses within the capsular bag in a retinitis pigmentosa patient","volume":"18","author":"Lee","year":"2004","journal-title":"Korean J Ophthalmol"},{"key":"2024051504315844000_3.4.e002616.15","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1007\/s10384-008-0570-6","article-title":"Effect of a capsular tension ring on prevention of intraocular lens decentration and tilt and on anterior capsule contraction after cataract surgery","volume":"52","author":"Takimoto","year":"2008","journal-title":"Jpn J Ophthalmol"},{"key":"2024051504315844000_3.4.e002616.16","doi-asserted-by":"crossref","first-page":"664","DOI":"10.1016\/j.ophtha.2008.11.018","article-title":"Late in-the-bag spontaneous intraocular lens dislocation: evaluation of 86 consecutive cases","volume":"116","author":"Davis","year":"2009","journal-title":"Ophthalmology"},{"key":"2024051504315844000_3.4.e002616.17","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1177\/112067210301300206","article-title":"Prevention of posterior capsule opacification using capsular tension ring for zonular defects in cataract surgery","volume":"13","author":"D'Eliseo","year":"2003","journal-title":"Eur J Ophthalmol"},{"key":"2024051504315844000_3.4.e002616.18","first-page":"507","article-title":"Capsular tension rings: update on endocapsular support devices","volume":"19","author":"Hasanee","year":"2006","journal-title":"Ophthalmol Clin North Am"},{"key":"2024051504315844000_3.4.e002616.19","doi-asserted-by":"crossref","unstructured":"Nikpoor N Stone DU . 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