Enhanced Housing Photoscreeners 2WIN and GoCheckKids Compared in Burma and Alaska
Study Details
Study Description
Brief Summary
"Adaptica" (Padova, Italy) designed a fixed-distance, dark portable tube with power and remote control for the "2WIN: photoscreener. GoChecksKids designed a flash-concentrating case for the iPhone 7+ to more quickly achieve two-axis photoscreen. These devices were compared to confirmatory exams in children and young adults in a remote Burma clinic and in an Alaskan pediatric ophthalmology practice.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
Photoscreening with follow up confirmatory exams for referred and passed interpretations were offered to children and young adults at a remote clinic in the Karen State of eastern Burma (Myanmar). The clinic had intermittent 220 Volt power generator, but no internet or cell phone coverage.
Consecutive patients in a "WiFi-equipped" pediatric ophthalmology practice in Anchorage, Alaska had photoscreening before confirmatory examination.
Each patient had photoscreening with the "2WIN" photoscreener installed in the "Kaleidos" housing. In Anchorage, the devise was controled by the wireless tablet computer. In Burma, however, despite a "WiFi router" not connected to internet, the tablet computer would not connect to the 2WIN and therefore the "Kaleidos" read-trap door was opened so the 2WIN could be activated and controlled manually. The" 2WIN" stored results on an "micro-SD" memory card which was eventually downloaded to computer.
Each patient also had photoscreening with GoCheckKids (GCK) on an "iPhone 7 Plus" using the enhanced, flash-concentrating cell-phone case. In Anchorage, in addition to on-site smart-phone interpretation, images were uploaded to the central reading center for secondary interpretation. In Burma, all images were retained on the smart phone and eventually uploaded for GoCheckKids central secondary analysis after return to urban internet availability. In Burma, a portable, light-wieght tent was used to provide a dim screening environment with less distraction.
Confirmatory exams were performed consistent with 2003 and 2013 American Association for Pediatric Ophthalmology and Strabismus (AAPOS) uniform guidelines. Cycloplegic refractions were performed 20-40 minutes after cyclopentolate 1% instillation. Visual acuity was checked with patched, surround "HOTV" at 3 meters threshold with at least 3 of 4 optotypes correct. Validation was performed with conventional 2 x 2 screen-exam matrix, and also with Alaska Blind Child Discovery (ABCD) 3 x 3 matrix including inconclusive results (no instrument interpretation or unable to gain a reading) with inconclusive interpretations considered a referral.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Burma Patients from remote Burma clinic |
Device: photoscreen
Determine amblyopia risk factors
Other Names:
|
| Alaska Patients in pediatric ophthalmology clinic |
Device: photoscreen
Determine amblyopia risk factors
Other Names:
|
Outcome Measures
Primary Outcome Measures
- Amblyopia Rick Factor prevalence [February 15, 2019 through April 16, 2019]
AAPOS 2003 and 2013 defined ARFs
Secondary Outcome Measures
- Refractive Error [February 15, 2019 through April 16, 2019]
Glasses prescription
Eligibility Criteria
Criteria
Inclusion Criteria:
- at least one eye
Exclusion Criteria:
- bilateral enucleation
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Alaska Children's EYE & Strabismus | Anchorage | Alaska | United States | 99508 |
Sponsors and Collaborators
- Alaska Blind Child Discovery
Investigators
- Principal Investigator: Robert W Arnold, MD, Alaska Blind Child Discovery
Study Documents (Full-Text)
None provided.More Information
Publications
- ABCD GCK Kaleidos