Status:

COMPLETED

Binocularly Balanced Viewing Study

Lead Sponsor:

Moorfields Eye Hospital NHS Foundation Trust

Conditions:

Amblyopia

Eligibility:

All Genders

3-8 years

Phase:

NA

Brief Summary

Amblyopia is treated by glasses and patches or blurring eyedrops to the good eye. This works in about 70% of children, but parents and children strongly dislike these treatments which may carry on for...

Detailed Description

"Lazy eye" (amblyopia) is the commonest sight problem in children, affecting about one in 30 children. It is caused by a difference in spectacle prescription between the eyes and/or a squint (eye misa...

Eligibility Criteria

Inclusion

  • Age between 3.0 and less than 8.0 years
  • unilateral anisometropic, strabismic or combined mechanism amblyopia
  • best-corrected crowded logMAR visual acuity (BCVA) in the amblyopic eye worse than 0.2logMar
  • best corrected visual acuity in the better seeing eye 0.2 or better
  • difference in best corrected visual acuity between the two eyes of 0.2 logMAR or more
  • adapted to spectacles with no improvement in acuity in affected eye for two consecutive visits
  • no previous treatment for amblyopia other than glasses

Exclusion

  • ocular cause for reduced visual acuity
  • inability to co-operate with assessment tests
  • other developmental disorders or learning or neurological disability that would impact on adherence to treatment
  • photopic epilepsy
  • myopia with spherical equivalent of greater than -6.00DS
  • previous intraocular surgery
  • inability to perform a crowded letter logMAR visual acuity test using a clinical trials standard testing method (ATS-HOTV protocol), either by naming or by matching letters

Key Trial Info

Start Date :

October 28 2019

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

December 1 2021

Estimated Enrollment :

32 Patients enrolled

Trial Details

Trial ID

NCT03754153

Start Date

October 28 2019

End Date

December 1 2021

Last Update

December 23 2021

Active Locations (1)

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1

Moorfields Eye Hospital NHS Foundation Trust

London, United Kingdom, EC1V 2PD