{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T08:45:13Z","timestamp":1791017113228,"version":"4.1.0"},"reference-count":21,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>The study aimed to estimate the prevalence of subnormal stereoacuity in school children and to assess the factors associated with it.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>In this prospective cross-sectional study, a total of 2,376 school children without amblyopia and manifest squint were screened by the titmus fly test, Snellen chart, tests for heterophoria, anterior segment examination, and fundoscopy. Children with a manifest squint, amblyopia (best-corrected visual acuity [BCVA] &lt;6\/18), and history of ocular trauma or surgery, and one-eyed children were excluded. Cycloplegic refraction was done in children with uncorrected or undercorrected refractive errors, and stereoacuity was assessed again with spectacle correction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The prevalence of normal stereoacuity by titmus fly test was 93.18% with correction of refractive errors. Girls had slightly better stereopsis compared with boys. The subnormal stereoacuity was significantly associated with refractive error (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), unilateral refractive error (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), bilateral refractive error (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), anisometropia (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), ametropia (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), lower BCVA (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.00001, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), hyperopia (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), and heterophoria (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.014, significant at\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05). The subnormal stereoacuity was positively correlated with the magnitude of refractive error of the eyes.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>This study underlines the significant impact of identification and correction of refractive errors and squints in school children. The measurement of stereoacuity will be of immense importance and must be included in the screening programs for children.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/ijo.ijo_1572_21","type":"journal-article","created":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T06:00:43Z","timestamp":1640584843000},"page":"233-237","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":14,"title":["Study on stereoacuity and associated factors in school children aged 7 to 14 years"],"prefix":"10.4103","volume":"70","author":[{"given":"Ravi K","family":"Potluri","sequence":"first","affiliation":[{"name":"Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Gannavaram, Krishna District, Andhra Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Subbarao V","family":"Akella","sequence":"additional","affiliation":[{"name":"Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Gannavaram, Krishna District, Andhra Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rachana","family":"Mallidi","sequence":"additional","affiliation":[{"name":"Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Gannavaram, Krishna District, Andhra Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nageswara R","family":"Uppala","sequence":"additional","affiliation":[{"name":"Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Gannavaram, Krishna District, Andhra Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rajendra P","family":"Jujjavarapu","sequence":"additional","affiliation":[{"name":"Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Gannavaram, Krishna District, Andhra Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2021,12,23]]},"reference":[{"key":"B1-20240828","doi-asserted-by":"crossref","first-page":"7950690","DOI":"10.1155\/2016\/7950690","article-title":"Effects of target size and test distance on stereoacuity","volume":"2016","author":"Iwata","year":"2016","journal-title":"J Ophthalmol"},{"key":"B2-20240828","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1038\/eye.2014.279","article-title":"Stereo vision and strabismus","volume":"29","author":"Read","year":"2015","journal-title":"Eye"},{"key":"B3-20240828","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1136\/bjophthalmol-2013-304517","article-title":"The effects of absence of stereopsis on performance of a simulated surgical task in two-dimensional and three-dimensional viewing conditions","volume":"99","author":"Bloch","year":"2015","journal-title":"Br J Ophthalmol"},{"key":"B4-20240828","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1080\/09286580903144712","article-title":"Children with low literacy and poor stereoacuity:An evaluation of complex interventions in a community-based randomized trial","volume":"16","author":"Ponsonby","year":"2009","journal-title":"Ophthalmic Epidemiol"},{"key":"B5-20240828","doi-asserted-by":"crossref","first-page":"485","DOI":"10.1111\/cxo.12655","article-title":"Stereopsis:Are we assessing it in enough depth?","volume":"101","author":"O'Connor","year":"2018","journal-title":"Clin Exp Optom"},{"key":"B6-20240828","doi-asserted-by":"crossref","first-page":"540","DOI":"10.1038\/sj.eye.6701538","article-title":"Impact of stereopsis on quality of life","volume":"19","author":"Kuang","year":"2005","journal-title":"Eye (Lond)"},{"key":"B7-20240828","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1080\/09273972.2016.1242636","article-title":"Normative values for near and distance clinical tests of stereoacuity","volume":"24","author":"Piano","year":"2016","journal-title":"Strabismus"},{"key":"B8-20240828","first-page":"532","article-title":"Evaluation of criteria of stereoacuity for titmus, randot and TNO stereotests","volume":"40","author":"Cho","year":"1999","journal-title":"J Korean Ophthalmol Soc"},{"key":"B9-20240828","doi-asserted-by":"crossref","first-page":"e0157829","DOI":"10.1371\/journal.pone.0157829","article-title":"Stereoacuity and related factors:The Shandong children eye study","volume":"11","author":"Guo","year":"2016","journal-title":"PLoS One"},{"key":"B10-20240828","doi-asserted-by":"crossref","first-page":"386","DOI":"10.1111\/j.1475-1313.1988.tb01173.x","article-title":"Stereoacuity levels and vision problems in children from 7 to 11 years","volume":"8","author":"Williams","year":"1988","journal-title":"Ophthalmic Physiol Opt"},{"key":"B11-20240828","doi-asserted-by":"crossref","first-page":"781","DOI":"10.1007\/s00417-011-1713-x","article-title":"Correct method for statistical analysis of stereopsis in ophthalmology research","volume":"250","author":"Peyman","year":"2012","journal-title":"Graefes Arch Clin Exp Ophthalmol"},{"key":"B12-20240828","doi-asserted-by":"crossref","first-page":"136","DOI":"10.3341\/kjo.2005.19.2.136","article-title":"Change of stereoacuity with aging in normal eyes","volume":"19","author":"Lee","year":"2005","journal-title":"Korean J Ophthalmol"},{"key":"B13-20240828","doi-asserted-by":"crossref","first-page":"1261","DOI":"10.1016\/j.ajo.2013.07.016","article-title":"The effects of glasses for anisometropia on stereopsis","volume":"156","author":"Lee","year":"2013","journal-title":"Am J Ophthalmol"},{"key":"B14-20240828","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1016\/S0161-6420(00)00425-5","article-title":"The association between nonstrabismic anisometropia, amblyopia, and subnormal binocularity","volume":"108","author":"Weakley","year":"2001","journal-title":"Ophthalmology"},{"key":"B15-20240828","doi-asserted-by":"crossref","first-page":"316","DOI":"10.1007\/s10384-013-0231-2","article-title":"Correlation between myopic ametropia and stereoacuity in school-aged children in Taiwan","volume":"57","author":"Yang","year":"2013","journal-title":"Jpn J Ophthalmol"},{"key":"B16-20240828","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.tjo.2011.11.004","article-title":"The effects of hyperopic and astigmatic ametropia on stereoacuity by Titmus stereo test","volume":"2","author":"Yang","year":"2012","journal-title":"Taiwan J Ophthalmol"},{"key":"B17-20240828","doi-asserted-by":"crossref","first-page":"1139","DOI":"10.1016\/S0161-6420(96)30555-1","article-title":"Anisometropia and binocularity","volume":"103","author":"Brooks","year":"1996","journal-title":"Ophthalmology"},{"key":"B18-20240828","first-page":"601","article-title":"Effect of aniseikonia on binocular function","volume":"27","author":"Katsumi","year":"1986","journal-title":"Invest Ophthalmol Vis Sci"},{"key":"B19-20240828","doi-asserted-by":"crossref","first-page":"2088","DOI":"10.1016\/S0161-6420(03)00865-0","article-title":"The relationship between stereopsis and visual acuity after occlusion therapy for amblyopia","volume":"110","author":"Lee","year":"2003","journal-title":"Ophthalmology"},{"key":"B20-20240828","doi-asserted-by":"crossref","first-page":"487","DOI":"10.1097\/00006324-199507000-00008","article-title":"Effects of heterophoria on stereopsis","volume":"72","author":"Saladin","year":"1995","journal-title":"Optom Vis Sci"},{"key":"B21-20240828","doi-asserted-by":"crossref","first-page":"360","DOI":"10.3928\/01913913-20051101-05","article-title":"Randot stereoacuity testing in young children","volume":"42","author":"Kulp","year":"2005","journal-title":"J Pediatr Ophthalmol Strabismus"}],"container-title":["Indian Journal of Ophthalmology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/ijo.IJO_1572_21","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:52:14Z","timestamp":1787755934000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/ijo.IJO_1572_21"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,23]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022]]}},"URL":"https:\/\/doi.org\/10.4103\/ijo.ijo_1572_21","relation":{},"ISSN":["0301-4738","1998-3689"],"issn-type":[{"value":"0301-4738","type":"print"},{"value":"1998-3689","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,23]]},"assertion":[{"value":"2021-06-06","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-08-12","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}