Performance of a Photoscreener for Vision Screening in a Haitian Pediatric Population (POPH)

Université de Montréal

Status: Withdrawn

Conditions: Myopia; Retinopathy of Prematurity; Cataract; Glaucoma; Astigmatism; Amblyopia; Xerophthalmia; Hyperopia; Trachoma; Retinoblastoma

Treatments: Procedure: Cyclopleged refraction; Device: Spot photoscreener; Procedure: Ophthalmologic evaluation

Study type: Observational

Funder types: Other

Identifiers

NCT02655432

20160130

Details and patient eligibility

About

Screening of haitian children between the ages of 3 and 6 years old for amblyogenic risk factors with the use of the Spot photoscreener. The photoscreener results will be compared to the complete ophthalmologic evaluation. Primarily, this will allow evaluation of the performance of the spot photoscreener in the haitian children population. Secondarily, this study will gather epidemiological information on vision problems in the haitian children population.

Full description

Screening of haitian children between the ages of 3 and 6 years old for amblyogenic risk factors with the use of the Spot photoscreener before and after cycloplegia. The photoscreener results will be compared to the complete ophthalmologic evaluation. The ophthalmologic evaluation includes visual acuity, ocular alignment, slit lamp evaluation, cycloplegic refraction and dilated fundus evaluation. First of all, this will allow evaluation of the performance of the spot photoscreener in the haitian children population. Second of all, this study will gather epidemiological information on vision problems in the haitian children population.

Sex: All

Ages: 3 to 6 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Haitian children aged 3-6 years of age
• Signed consent form from a legal guardian

Exclusion criteria

• Previous vision problem diagnostic
• Unsigned consent form

Trial design

0 participants in 1 patient group

Spot photoscreener

Description:

Automated vision screener: Spot Vision Screener VS 100, Welch-Allyn. This photoscreener is a portable device, using an infrared light. It is built to detect amblyogenic risk factors. First of all, the spot photoscreener produces a sounds which attracts the child's attention and helps him shift his gaze towards the device, held at 1 meter in front him. The spot then evaluates for refractive errors, anisocoria, strabismus, ptosis and media opacity. The ophthalmologic evaluation consists of the measure of the visual acuity, ocular alignment, anterior and posterior segment. The patient will be cyclopleged with cycloplegic drops and will be refracted to obtain a cyclopleged refraction. This will determine his refractive error.

Treatment:

Procedure: Ophthalmologic evaluation

Procedure: Cyclopleged refraction

Device: Spot photoscreener