Amblyopia
Conditions
Brief summary
This study will examine on Refractive Amblyopia patients, whose amblyopia started due to longstanding uncorrected refractive errors.
Detailed description
There will be a comparison of two treatment methods i.e. Patching and Binocular Spectacle Prescription used to cure amblyopia patients. In binocular spectacle correction, we will slightly blur the good eye and fully correct the amblyopic eye so that binocular functions stimulate and improve after the treatment. Literature suggests that Patching improve monocular functions but there is no significant improvement in binocular functions.
Interventions
DIAGNOSTIC_TESTExp Group
Binocular Spectacle prescription are therapeutic tools used to correct refractive errors in visually impaired patients. They improve Visual acuity as well as other visual functions in Amblyopic and visual impairment patients. They stimulate weaker eye to generate visual impulse and stimulate visual cortex to improve stereopsis and fusion.
DIAGNOSTIC_TESTControl Group
Patching therapy is a gold standard tool used world wide to correct visual acuity in amblyopic patients. This tool is used by occluding stronger eye with a patch or bandage or fogging lens and stimulating amblyopic eye to generate visual stimulus to motivate visual cortex.
Sponsors
Superior University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
5 Years to 18 Years
Healthy volunteers
Yes
Inclusion criteria
* Anisometropic amblyopia * Anisometropia \> 1.00 D( difference between eyes in SE) * Astigmatism \>1.50 D * VA in amblyopic eye 20/40 -20/200(6/12-6/60) or less than 20/200 * VA in the better eye or fellow eye 20/30 (6/9) or better
Exclusion criteria
* Strabismic amblyopia * Deprivation amblyopia * Isoametropic amblyopia * History of ocular trauma, IOL implant * Media opacity * Any ocular/retinal pathology * Optic nerve pathology * Ptosis * Any gaze control abnormalities
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Binocular single vision | 12 Months | it will be measured by Worth 4 Dot test in which patient will see four lights ( two green, one red and one white light) with red and green glasses and both eyes will see at once. stereopsis: it will be measured grossly by seeing the fly picture at the card and fine stereopsis will be measured by different pictures available on the card. it will be assessed by wearing polarising glasses during test and see the 3D pictures. |
| Visual Acuity | 12 months | it will be assessed monocularly by logMAR visual acuity chart at 4 meter distance. |
Countries
Pakistan
Outcome results
None listed