Status:
COMPLETED
Optimization of a Photoretinoscopy Method for Determining the Objective Refraction of Children With a Smartphone/add-on Device in India
Lead Sponsor:
Essilor International
Conditions:
Ametropia
Eligibility:
All Genders
6-13 years
Phase:
NA
Brief Summary
The objective is to compare the refractive parameters of the photorefraction prototype device without cycloplegia with the refractive parameters of reference device, an autorefractometer with and with...
Detailed Description
A single visit will be necessary. After informed consent, and checking of the inclusion and exclusion criteria, investigators will perform measurements with an autorefractometer and with the photorefr...
Eligibility Criteria
Inclusion
- Voluntary, willing to follow the protocol, able to read and understand the information form and give free and informed consent (for parents/guardian of children subjects) and assent (for subjects aged 6-12 years old
- At least 6 years old and up to 12 years old at time of informed consent and assent
- Average of the equivalent sphere(Sph+Cyl/2) of both eye included in the interval \[-10.00, +8.00\]
- Cylindrical refractive error between 0 and 4.00 D on both eyes
- Corrected binocular visual acuity in distance vision at least 6/9
Exclusion
- Incapable of expressing consent
- All categories of persons particularly protected by law
- Subject in another study which might have an influence on vision or interfere with study assessment
- Less than 6 years old, or 13 years old or above at time of informed consent and assent
- Amblyopia, Cataract, Strabismus.
- Aphakic or pseudophakic (intraocular implant)
- Reported severe eye disease involving loss of visual field as in glaucoma, involving loss of acuity and severe discomfort in low or overly bright environments as in retinitis pigmentosa or reported and treated dry eye.
- Self-reported neurological deficits, including a history of epileptic pathology or sensory-motor coordination disorders, vestibular or cerebellar pathology (e.g., balance disorders, nystagmus)
- Any previous ocular surgery, which might have an influence on vision or interfere with study assessments (e.g. iridectomy, refractive surgery…),
- Any myopia control solutions that could affect refractive status of the eye (e.g. Atropine eye drops, Orthokeratology)
Key Trial Info
Start Date :
October 3 2024
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
December 10 2024
Estimated Enrollment :
122 Patients enrolled
Trial Details
Trial ID
NCT06524115
Start Date
October 3 2024
End Date
December 10 2024
Last Update
April 4 2025
Active Locations (1)
Enter a location and click search to find clinical trials sorted by distance.
1
Sankara Nethralaya, Unit of Medical Research Foundation
Chennai, Tamil Nadu, India, 600 006