PMID: 15252349Jul 15, 2004Paper

Minimal angle horizontal strabismus detectable by lay observers

Optometry and Vision Science : Official Publication of the American Academy of Optometry
Erik WeissbergFrank Thorn

Abstract

Patients with socially significant strabismus may be at risk for certain psychosocial consequences. However, the magnitude at which strabismus becomes socially significant is ill defined. Suggested criteria for socially significant strabismus can be found in the literature, but they are rarely, if ever, referenced. The purpose of this study is to further define the magnitude at which strabismus becomes socially significant according to lay observers. Strabismus was simulated using photo manipulation and off-center fixation. Horizontal deviations were created in 3Delta steps up to 24Delta. One model was used for all photos. The photos were presented in random order to non-health care professionals (N = 58). Participants were instructed to view each picture and determine: "yes, this person has an eye turn" or "no, this person does not have an eye turn." A chi test was used for analysis. RESULTS.: There was an increase in the likelihood of strabismus detection as the size of the angle increased for exotropia and esotropia. Overall, exotropia was easier to identify than esotropia. For esotropia, a dramatic increase in detectability occurred between 9Delta (47.41% detection; p = 0.001) and 12Delta (67.24% detection; p = 0.001), with...Continue Reading

References

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Citations

Aug 17, 2005·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Heather A JohnsYing-Sheng Hu
Nov 4, 2008·Pediatrics·Brian G MohneyNancy N Diehl
Dec 15, 2012·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·Kyung Eun Han, Key Hwan Lim
Nov 1, 2013·Strabismus·Ailsa RitchieSaurabh Jain
Dec 5, 2013·Strabismus·AliAkbar Saber MoghadamMehran Zarei-Ghanavati
Nov 16, 2006·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jerry E Vincent
Jan 19, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Kyla SmithThomas G Travison
Sep 18, 2007·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jennifer L StutevilleRoger W West
Feb 15, 2011·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Julie M DolvenRoger W West
Jun 18, 2015·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Dong Hyun Wang, Jee Ho Chang
Aug 14, 2020·PloS One·Timur M YildirimChristian S Mayer
Feb 15, 2018·PloS One·Kyung Eun HanUNKNOWN Epidemiologic Survey Committee of the Korean Ophthalmological Society
Aug 5, 2021·Oman Journal of Ophthalmology·Alexandra CrawfordCharles Ninian John McGhee

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