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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ISRCTN
Last refreshed on: 7 December 2020
Main ID:  ISRCTN62086471
Date of registration: 13/06/2017
Prospective Registration: No
Primary sponsor: Commenius University
Public title: Dichoptic virtual reality training for treatment of amblyopia
Scientific title: Amblyopia treatment of adults with Dichoptic training using the Virtual Reality oculus rift head mounted display: Preliminary results
Date of first enrolment: 09/03/2016
Target sample size: 17
Recruitment status: Completed
URL:  http://isrctn.com/ISRCTN62086471
Study type:  Interventional
Study design:  Prospective interventional non randomised pilot study (Treatment)  
Phase:  Not Specified
Countries of recruitment
Slovakia Spain
Contacts
Name: David Pablo    Pinero
Address:  Department of Optics Pharmacology and Anatomy University of Alicante Crta San Vicente del Raspeig s/n 03690 San Vicente del Raspeig Spain
Telephone:
Email:
Affiliation: 
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Key inclusion & exclusion criteria
Inclusion criteria:
1. Anisometropic amblyopia
2. Age of 17 years old or more
3. Willing to perform the visual training

Exclusion criteria:
1. Strabismus
2. Previous ocular surgery
3. Corneal irregularity
4. Opacification of ocular media including cataracts
5. Active ocular disease


Age minimum:
Age maximum:
Gender: Both
Health Condition(s) or Problem(s) studied
Anisometropic amblyopia
Eye Diseases
Anisometropic amblyopia
Intervention(s)

Participants all undergo a baseline ophthalmological examination including visual testing, manifest and cycloplegic refraction, cover test, four dot Worth test, anterior segment examination with the slit lamp, corneal topography and funduscopy.

Participants then undergo a dichoptic visual training was performed using the beta version of the computer game Diplopia Game which was run in the Oculus Rift OC DK2 virtual reality head mounted display. Two games are used, a space game in which subjects were flying spaceship through a system of rings and a breaker game which is a typical block breaker game, but played in a virtual reality 3D setting. Both games had a dichoptic setting in which the central part of the picture was different for each eye.

Each participant undergoes eight training sessions, being performed twice a week. Each session included 40 minutes of training with the two different games (20 minutes per game). This takes one month.

Stereopsis and visual acuity were tested after finishing the last session of training (one month after beginning the training) and three months after the end of training.
Primary Outcome(s)

1. Visual acuity is measured using calibrated liquid crystal display (LCD) optotype with Snellen charts (CC-X10, Topcon, Japan) at baseline, one and three months
2. Stereopsis is measured using the Stereo Randot graded circle test (Stereo Optical, IL, USA) at baseline, one and three months
Secondary Outcome(s)

1. Compliance is measured using the computer registration of the training sessions at one month
2. Refraction is measured using retinoscopy and subjective refraction in trial frame at baseline, one and three months
Secondary ID(s)
DVR1
Source(s) of Monetary Support
University of Alicante
Secondary Sponsor(s)
Ethics review
Status:
Approval date:
Contact:
Ethics Committe of Jessenius Medical School Commenius University, 08/03/2016, ref: EK 1795/2016
Results
Results available: Yes
Date Posted:
Date Completed: 10/10/2016
URL:
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