key: cord-0016725-fxmim5no
authors: Arnold, Robert; Keffalos, Mason; Martin, Samuel
title: Drive-by Photoscreening [Response to Letter]
date: 2021-04-09
journal: Clin Ophthalmol
DOI: 10.2147/opth.s313977
sha: 876609a690d5d9e7e54eb8a03815f2ff4da08e91
doc_id: 16725
cord_uid: fxmim5no

nan

Thank you for the opportunity to respond to the excellent and informative letter by Dr. David Hunter.

For our attempt at Drive by Photoscreening, 1 the wire-and-opaque-plastic shielded sufficient ambient light so that blinq could get a reading outdoors, but the performance of blinq suffered compared to conventional indoor use. We surmised this may have been due to the lack of facial view for the aiming beams, but we agree with Dr. Hunter that disruption of infrared light could also have been the culprit.

There remain some potential advantages to a hood, or tent between the patient and the screening device. 2 These can decrease luminance and stray light. But they also can help fixation. Young and developmentally delayed children often do not understand the need to look at a small fixation target on an instrument-based screener so they may glance at peripheral distractions including the screener's face. If the screener then tries to "hide" behind the screening device, certain devices show the patient's face in their monitor so focus and alignment can be accomplished. Such device aiming is inherently obvious with smart phone photoscreening by GoCheck Kids. Viewing the patient's image on a monitor was not possible with the former MTI photoscreener or the current iScreen photoscreener which also made use of aiming beams like the blinq. In the future, it might be possible to include a small camera that projects the patient's face to the blinq monitor under these circumstances.

We remain amazed at the technology of the blinq and its potential to shed light on amblyopia, strabismus and perhaps many other entities. We hope the COVID-19 pandemic social distancing guidelines will soon be relaxed to allow even more widespread, valid early amblyopia detection worldwide.

Dr. Arnold is a board member of Glacier Medical Software that markets ROP-Check could-based NICU software. Dr. Arnold is a board member of PDI Check that makes a vision screening game for autostereoscopic screens on Nintendo 3DS. Dr. Arnold is the coordinator of the Alaska Blind Child Discovery which has received discounted vision screen technology from several vendors. Dr. Arnold is an investigator and protocol developer for the NIH-supported Pediatric Eye Disease Investigator Group (PEDIG). Dr. Arnold is a non-paid advisor to GoCheck Kids, plusoptiX, Adaptica and iScreen. The authors report no other conflicts of interest in this communication.

Drive-By Photoscreening: plusoptiX, 2WIN and blinq Amblyopia Detection during the COVID-19 pandemic

Tent photoscreening and patched HOTV visual acuity by school nurses: validation of the ASD-ABCD protocol. (Anchorage School District-Alaska Blind Child Discovery program)

its officers, agents, employees, related entities or the Clinical Ophthalmology editors. While all reasonable steps have been taken to confirm the content of each letter

Key topics include: Optometry; Visual science; Pharmacology and drug therapy in eye diseases; Basic Sciences; Primary and Secondary eye care; Patient Safety and Quality of Care Improvements. This journal is indexed on PubMed Central and CAS, and is the official journal of The Society of Clinical Ophthalmology (SCO). The manuscript management system is completely online and includes a very quick and fair peer-review system