Stereo Vision Deterioration by Artificially Induced Aniseikonia
Authors:
P. Veselý 1,2; S. Synek 1,2
Authors‘ workplace:
Oddělení nemocí očních a optometrie, Fakultní nemocnice u svaté Anny, Brno
1; Katedra optometrie a ortoptiky, Lékařská fakulta, Masarykova univerzita, Brno
2
Published in:
Čes. a slov. Oftal., 71, 2015, No. 6, p. 309-311
Category:
Original Article
Overview
Main purpose of this study was to evaluate effect of aniseikonia on the stereo vision. We had together 90 subjects without eye pathology with or without habitual correction. Five of them were excluded due to important anisometropia or bad visual acuity (V < 0.5 on worse eye). All 85 subjects every in 4 cases (without size lens, with size lens on OD 1, 3 and 5 %) undergone measuring of their stereoscopy parallax. This was evaluated by Random dot stereo test. The level for stereoscopy vision was set bellow 60 arc seconds. This criterion was not achieved naturally by 6 subjects, so final number of all cases was 316 (100 %). As a whole 48 subjects (15.2 %) fail after using the test with size lens on OD 1, 3 or 5 %. All 268 cases (84.8 %) had not impaired stereoscopy parallax with size lens over chosen critical level.
Key words:
size lens, anisometropia, aniseikonia, heterophoria, stereoscopy vision
Sources
1. Bethke, W.: The Multiple Sides of Monovision. Review of ophthalmology. Philadelphia: Elsevier Saunders, 2013. ISBN 0721687768.
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3. Howard, IP, Rogers BJ.: Perceiving in Depth, Vol. 2. Stereoscopic Vision. Oxford University Press, 2012. ISBN 0199764158.
4. Lam, AK, Tse, P., Choy, E. et al.: Crossed and uncrossed stereoacuity at distance and the effect from heterophoria. Ophthalmic and Physiological Optics, April 2002, vol 22, Issue 3.
5. O´connor, AR, Birch, EE, Anderson, S.: The Functional Significance of Stereopsis. Investigative Ophthalmology and Visual Science, April 2010, vol. 51 no. 4: 2019-23.
6. Rutrle, M.: Přístrojová optika: učební text pro oční optiky a oční techniky, optometristy a oftalmology. 1. vyd. Brno: Institut pro další vzdělání pracovníků ve zdravotnictví, 2000. ISBN 8070133015.
Labels
OphthalmologyArticle was published in
Czech and Slovak Ophthalmology
2015 Issue 6
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