title: The effectiveness of disc synoptoscope on patients with abnormal binocular vision: a prospective cohort study.
abstract: OBJECTIVE
  We performed a prospective cohort study to evaluate the effectiveness of disc synoptoscope on binocularity in patients with abnormal binocular vision.
  
  
  METHODS
  39 eligible subjects were recruited for visual therapy with disc synoptoscope in treatment group and 38 were just observed as control.
  
  
  RESULTS
  Simultaneous perception in treatment group was better than controls at 6-month visit (p < 0.05). Fusional amplitude improved in treatment group but decreased in control group at 3- and 6-months visits (p < 0.001). Near and distance stereopsis in treatment group were better than controls at 3- and 6-months (p < 0.05). The improvements of monocular and binocular acuity in treatment group were better than controls at 3- and 6-months (p < 0.05). Postoperative recurrence rate in treatment group was lower than controls (p < 0.05).
  
  
  CONCLUSIONS
  Visual therapy with disc synoptoscope is effective in improving short-term binocular vision for the patients with abnormal binocular vision; disc synoptoscope could serve as an effective home-based visual therapy instrument.
authors: Department of Optometry and Visual Science, West China Hospital, Sichuan University, No.17, Block 3, South People Road, Chengdu, 610041, Sichuan Province, China.
authors: Jianglan
authors: J
authors: Wang
authors: Department of Optometry and Visual Science, West China Hospital, Sichuan University, No.17, Block 3, South People Road, Chengdu, 610041, Sichuan Province, China.
authors: Xin
authors: X
authors: Ma
authors: Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
authors: Ye
authors: Y
authors: Wu
authors: Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
authors: Meng
authors: M
authors: Liao
authors: Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China. b.q15651@hotmail.com.
authors: Longqian
authors: L
authors: Liu
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D015350:Contrast Sensitivity / Q000502:physiology*; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009885:Ophthalmology / Q000295:instrumentation*; D011446:Prospective Studies; D016896:Treatment Outcome; D014786:Vision Disorders / Q000503:physiopathology / Q000628:therapy*; D015348:Vision, Binocular / Q000502:physiology*; D014792:Visual Acuity; D055815:Young Adult
keywords: Binocular vision; Disc synoptoscope; Treatment effect; Visual acuity; Visual therapy