Amblyopia and strabismus are characterized by a reduction in visual acuity, contrast sensitivity, grating acuity, vernier acuity, reading difficulties and binocular visual function deficits. Treated patients have residual visual function deficits. The purpose of the current study is to quantify various visual functions in amblyopic and strabismic participants at baseline, during and at the completion of treatment.
To examine the response of therapy on visual functions in amblyopic and strabismic participants. The following visual functions will be measured prior to treatment. Eye movements, contrast sensitivity, grating acuity, visual acuity, vernier acuity, binocular visual functions, reading and visual scanning will be measured. The testing will comprise of one or more of the above paradigms depending on participant's cooperation and understanding as majority of the study participants will be children. The above measurements will be repeated during amblyopia therapy ( which comprises of glasses, patching and/or atropine eye drops) and at the completion of treatment. For participants with strabismus requiring strabismus surgery the measurements will be repeated after strabismus surgery.
Study Type
OBSERVATIONAL
Enrollment
150
Patching, glasses and strabismus surgery are commonly employed measures in treatment of amblyopia and strabismus.
Cleveland Clinic
Cleveland, Ohio, United States
RECRUITINGVisual Functions
contrast sensitivity
Time frame: 0-3 years depending on duration of treatment
Visual Functions
visual acuity
Time frame: 0-3 years depending on duration of treatment
Visual functions
vernier acuity
Time frame: 0-3 years depending on duration of treatment
Visual functions
grating acuity
Time frame: 0-3 years depending on duration of treatment
Visual functions
binocular functions- stereopsis, inter-ocular functions
Time frame: 0-3 years depending on duration of treatment
Visual functions
eye movement measurements
Time frame: 0-3 years depending on duration of treatment
Visual functions
reading- reading speeds, eye movement measurements
Time frame: 0-3 years depending on duration of treatment
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