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Clinical Trial Summary

Objectives. To develop a new treatment for amblyopia using a perceptual learning approach. Hypothesis to be tested. Our proposed experiments are designed to investigate whether practicing a grating detection task can improve vision in patients with amblyopia. Design and subjects. A total of 36 patients with amblyopia will be randomized allocated into two intervention groups: Group 1, perceptual learning therapy. Group 2, occlusion therapy. A control group comprising of 18 subjects with normal vision will be recruited for comparison. A battery of tests will be used to assess a range of visual functions before and after the treatment intervention. Study instruments. Grating acuity testing system Interventions. We have established a clinical protocol for acuity training. On each trial, a properly oriented stimulus will be presented randomly at one of the four locations on a flat monitor screen. The visual task is to indicate the location of the stimulus. Participants will be required to undertake 20 one-hour sessions of training. Main outcome measures. Resolution acuity, visual acuity, contrast sensitivity function


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03788031
Study type Interventional
Source The Hong Kong Polytechnic University
Contact
Status Active, not recruiting
Phase N/A
Start date March 1, 2019
Completion date February 28, 2023

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