Portable acuity screening for any school: validation of patched HOTV with amblyopic patients and Bangerter normals

Wu, Maya Tsao; Armitage, M Diane; Trujillo, Claire; Trujillo, Anna C.; Arnold, Laura E.; Wu, Lauren Tsao; Arnold, Robert W.

doi:10.1186/s12886-017-0624-y

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…ABCD-Vision (Anchorage, Alaska) developed a paper-based HOTV crowding bar visual acuity test to be used for remote use in Alaska. 42 This 8.5x11” paper acuity chart can be emailed for at-home printing or mailed to patients who do not have access to a printer. Another method of checking vision at home is using a smartphone or computer.…”

Section: Introductionmentioning

confidence: 99%

Teleophthalmology: Evaluation of Phone-based Visual Acuity in a Pediatric Population

Silverstein

Williams

Brown

et al. 2021

American Journal of Ophthalmology

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: Purpose With the recent rise of teleophthalmology due to coronavirus disease, we are in need of accurate and reliable methods of checking visual acuity remotely. We compare the visual acuity as measured by the GoCheck Kids application, HOTV with the amblyopia treatment study (ATS), and our clinic protocol. Design This is a prospective, comparison of visual acuity assessment methods. Methods Established patients (aged 3-18) in the practice of a single pediatric ophthalmologist were eligible. Visual acuity was measured by: 1) GoCheck Kids mobile application (by patient’s family member), 2) HOTV-ATS (by study personnel), and 3) regular clinic protocol (by ophthalmic technician). To assess agreement between measures of acuity, intraclass correlations with 95% confidence intervals were computed. Results Fifty-three children participated. The mean difference between GoCheck Kids and HOTV-ATS acuities (0.094) was significantly different (p<0.001); the intraclass correlation (ICC) was 0.55 (95% CI: 0.40, 0.68). The mean difference between GoCheck Kids and chart acuities (0.010) was not significantly different (p=0.319); ICC: 0.59 (95% CI: 0.45, 0.71). The mean difference between HOTV-ATS and chart acuities (0.084) was significantly different (p<0.001); ICC: 0.66 (95% CI: 0.53, 0.76). The percent of eyes with visual acuity as measured by GoCheck Kids that was within 1 line of the HOTV-ATS and chart acuity was 65.3% and 86.7%, respectively. Conclusions GoCheck Kids as checked by a family member provides a modest correlation of visual acuity compared to the chart screen and a fair correlation of visual acuity compared to HOTV-Amblyopia Treatment Study protocol, though a vast majority are within 1 line.

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Section: Introductionmentioning

confidence: 99%

Teleophthalmology: Evaluation of Phone-based Visual Acuity in a Pediatric Population

Silverstein

Williams

Brown

et al. 2021

American Journal of Ophthalmology

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“…Providing the estimation of refraction with valid photorefractors in a drive-by paradigm is a beneficial step. Visual acuity can be checked at home by a phone-based 18 or paper download 19 method. Further referral toward expert pediatric ophthalmic specialty care must be balanced with community needs for pandemic isolation.…”

Section: Discussionmentioning

confidence: 99%

Drive-by Photoscreening: Plusoptix, 2WIN and Blinq Amblyopia Detection During the COVID-19 Pandemic

Keffalos¹,

Martin²,

Arnold³

2021

OPTH

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Background Community photoscreening for amblyopia had successfully been adopted by many communities, however many clinics curtailed screening as a result of the COVID-19 pandemic. We modified three conventional devices and tested them for outdoor, drive-by socially distanced photoscreening and refraction. Methods External frames that provide luminance control and focus distance were fashioned for plusoptiX S12 (Nuremberg, Germany), Adaptica 2WIN in Kaleidos case (Padova, Italy) and the Rebion blinq (Boston, USA). Children were screened by each device and then Retinomax (Righton, Japan) before AAPOS guideline validation. Results Eighty-eight children average age 8±7 years had precise refraction and alignment from which 69% AAPOS 2003 risk factors were determined. The sensitivity/specificity/inconclusive rate for plusoptiX was 85%/96%/16%, for 2WIN 79%/89%/5% and for blinq 43%/74%/8%. Blinq improved to 54%/70% when screening for amblyopia ± strabismus. Bland Altman analysis of spherical equivalent showed plusoptiX and 2WIN with less over-minus than Retinomax and J0 and J45 vectors highly reliable for astigmatism determination. Conclusion The infrared photorefractors in modified cases reliably screened amblyopia risk factors and refraction. The birefringent scanner provided drive-by results but less reliably with wire-frame opaque case than without the case in a dimly lit room. Modified drive-by photoscreeners could help reduce amblyopia and provide socially distanced refraction during an extended pandemic.

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Visual Acuity Assessment and Vision Screening Using a Novel Smartphone Application

Zhao

Stinnett

Prakalapakorn

2019

The Journal of Pediatrics

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Portable acuity screening for any school: validation of patched HOTV with amblyopic patients and Bangerter normals

Cited by 8 publications

References 15 publications

Teleophthalmology: Evaluation of Phone-based Visual Acuity in a Pediatric Population

Teleophthalmology: Evaluation of Phone-based Visual Acuity in a Pediatric Population

Drive-by Photoscreening: Plusoptix, 2WIN and Blinq Amblyopia Detection During the COVID-19 Pandemic

Visual Acuity Assessment and Vision Screening Using a Novel Smartphone Application

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