Quantitative analysis of stereopsis in patients with strabismus using three-dimensional images

2017 Fiscal Year Final Research Report

• Project/Area Number: 26861451
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ophthalmology
• Research Institution: Kyoto University (2015-2017); Kawasaki Medical School (2014)
• Principal Investigator: Miyata Manabu 京都大学, 医学研究科, 助教 (00548505)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 立体視 / 斜視 / 網膜 / Nagahama Study / 3D / 立体感覚 / Bangerter filter / 回旋偏位

Outline of Final Research Achievements

We quantitatively measured degree of stereopsis induced by visual targets with 1―5° binocular crossed disparities presented on a three-dimensional television display in healthy subjects and patients with strabismus. The degree of stereopsis in healthy subjects was similar with geometric theoretical values. Furthermore, the degree of stereopsis was not degraded by the reduced monocular visual acuity induced by the use of a 0.3 Bangerter filter. The present study indicates that the use of 0.3 Bangerter filters is considered safer than occlusion eye patches for the patients with normal binocular vision.
The degree of stereopsis in a patient with intermittent exotropia and a patient with postoperative late onset esotropia was 60―70% compared to geometric theoretical values. The present study indicates that strabismic patients with stereopsis feel less popped-out in watching three-dimensional images compared to healthy subjects.

Free Research Field

眼科学