Spectacles for Lazy Eye
(SPECTRA Trial)
Trial Summary
What is the purpose of this trial?
Amblyopia is a developmental anomaly resulting from abnormal visual experiences in early life. Amblyopia causes reduced visual acuity in the absence of a pathology. Adult sensory systems are believed to be structurally invariant beyond early, critical periods of development. However, recent evidence suggest that visual functions in adults with amblyopia can be improved with optical correction alone. This study aims to investigate whether improvements in best corrected visual acuity and other visual functions can result following appropriate optical correction in adults with amblyopia. Functional measures relating to vision, binocular vision, and eye movements will be used to assess the efficacy of refractive correction for improving vision. This study will help us better understand the improvements in visual functions following optical correction, as well as the mechanisms underlying neuroplasticity in adults with amblyopia.
Will I have to stop taking my current medications?
The trial information does not specify whether you need to stop taking your current medications.
What data supports the effectiveness of the treatment for lazy eye using spectacles, optical correction, refractive correction, glasses, and contact lenses?
Is wearing spectacles or contact lenses safe for treating lazy eye?
How does the treatment of optical correction for lazy eye differ from other treatments?
Optical correction for lazy eye, using glasses or contact lenses, is unique because it directly addresses vision clarity by correcting refractive errors (issues with how the eye focuses light) without invasive procedures. Unlike other treatments that might involve surgery or eye patches, this method is non-invasive and can be easily adjusted or customized to the individual's needs.1112131415
Research Team
Benjamin Thompson, PhD
Principal Investigator
Centre for Eye and Vision Research Limited
Ken WS Tan, PhD
Principal Investigator
Centre for Eye and Vision Research Limited
Eligibility Criteria
This trial is for adults aged 18-39 with 'lazy eye' who have a specific difference in vision strength or astigmatism between their eyes. They must be generally healthy and have not received the optimal glasses prescription yet.Inclusion Criteria
Trial Timeline
Screening
Participants are screened for eligibility to participate in the trial
Pre-intervention
Baseline measurements including visual acuity, fixation stability, and quality of life assessments
Intervention
Participants receive optical correction with spectacles and undergo regular assessments of visual functions
Post-intervention
Final assessments of visual acuity, fixation stability, and quality of life
Follow-up
Participants are monitored for any long-term changes in visual functions after the intervention
Treatment Details
Interventions
- Optical Correction (Refractive Correction)
Find a Clinic Near You
Who Is Running the Clinical Trial?
Centre for Eye and Vision Research
Lead Sponsor
The Hong Kong Polytechnic University
Collaborator
Dr. Loretta Fong
The Hong Kong Polytechnic University
Chief Medical Officer since 2023
MD from the University of Hong Kong
Prof. Jin-Guang Teng
The Hong Kong Polytechnic University
Chief Executive Officer since 2019
PhD in Structural Engineering from the University of Sydney
University of Waterloo
Collaborator