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- Title
Binocular visual function of myopic pseudophakic monovision.
- Authors
Hayashi, Ken; Yoshida, Motoaki; Sasaki, Hiroshi; Hirata, Akira
- Abstract
Purpose: To compare binocular visual function of myopic pseudophakic patients with myopic monovision to patients without monovision.Study design: Randomized comparative studyMethods: Sixty patients were randomized to one of two groups: patients whose refraction was targeted to -2.75 diopters (D) in the dominant eye and -1.75D in the nondominant eye (myopic monovision group), and patients whose refraction was targeted to -2.75D bilaterally (non-monovision group). Binocular uncorrected and corrected visual acuity at various distances was measured using an all-distance vision tester, and contrast visual acuity and near stereoacuity were examined.Results: In the myopic monovision group mean refraction was -2.74D in the dominant eyes and -1.94D in the nondominant eyes, and in the non-monovision group it was -2.96D bilaterally. Mean binocular uncorrected distance (UDVA) and intermediate visual acuity (UIVA) from 0.5 m to 5.0 m were significantly better in the myopic monovision group than in the non-monovision group (<italic>P</italic>≤ 0.0134), while binocular uncorrected near visual acuity (UNVA) at 0.3 m did not differ significantly between groups. The distribution of UIVA and UDVA was significantly better in the myopic monovision group (<italic>P</italic>≤ 0.0035). Corrected visual acuity at any distance, photopic and mesopic contrast visual acuity, and stereoacuity did not differ significantly between groups.Conclusion: Patients with myopic monovision exhibited significantly better binocular UIVA and UDVA than those without monovision, while UNVA, corrected visual acuity, contrast sensitivity, and stereoacuity were comparable between groups, suggesting that this method is useful for patients who want to see near and intermediate distances without spectacles.
- Subjects
BINOCULAR vision disorders; MYOPIA; VISUAL acuity; VISION disorders; EYEGLASSES; PATIENTS; PREVENTION
- Publication
Japanese Journal of Ophthalmology, 2018, Vol 62, Issue 3, p357
- ISSN
0021-5155
- Publication type
Article
- DOI
10.1007/s10384-018-0564-y