Stereoacuity measurement using a phoropter combined with two 4K smartphones
2017; Taylor & Francis; Volume: 101; Issue: 2 Linguagem: Inglês
10.1111/cxo.12614
ISSN1444-0938
AutoresHuang Wu, Shu Liu, Ruiqing Wang,
Tópico(s)Advanced Vision and Imaging
ResumoPurposeTo evaluate stereoacuity using a combination of a phoropter and two 4K smartphones.MethodsA stereopsis measurement system was established using a phoropter (Topcon VT‐10) and two Sony 4K smartphones (Sony Xperia Z5 Premium Dual E6883). A total of 154 subjects (69 children and 85 adults) were enrolled for evaluation using this system and subsequent comparison with the Fly Stereo Acuity test.ResultsThere was a high level of agreement between the two methods using Bland‐Altman statistical analysis (children group, 95 per cent limits of agreement ±0.14 log arcseconds [arcsec]; adult group, 95 per cent limits of agreement ±0.13 log arcsec).ConclusionThe closely spaced pixels of a 4K smartphone display enable measurement of stereoacuity at a relatively short distance. The flexibility and versatility of the mobile test system are likely to be useful in clinical practice.
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