NCT03212222

Brief Summary

The purpose of this study is to evaluate how visual acuity assessed with Peek Acuity (a cell phone application to check visual acuity) among preschool and school-aged children 3 to less than18 years of age (1) compares to the standard visual acuity exam in the ophthalmology clinic and (2) performs as a screening test for ocular abnormalities that warrant referral for an eye exam.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
111

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 5, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 11, 2017

Completed
2 months until next milestone

Study Start

First participant enrolled

August 25, 2017

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2017

Completed
Last Updated

June 28, 2019

Status Verified

September 1, 2018

Enrollment Period

4 months

First QC Date

July 5, 2017

Last Update Submit

June 27, 2019

Conditions

Keywords

screeningcell phone application

Outcome Measures

Primary Outcomes (3)

  • Sensitivity of screening with standard exam vs. Peek Acuity for referral to further medical management

    Children screened positive for visual deficit by standard exam will be deemed true positives; any true positives not identified by the Peek Acuity application will be deemed false negatives. Sensitivity is calculated by true positive population divided by the sum of true positives and false negatives

    Visit 1 (up to 30 minutes)

  • Specificity of screening with standard exam vs. Peek Acuity for referral to further medical management

    Children screened negative for visual deficit by standard exam will be deemed true negatives; any true negatives not identified by the Peek Acuity application will be deemed false positives. Specificity is calculated by true negative population divided by the sum of true negatives and false positives

    Visit 1 (up to 30 minutes)

  • Accuracy of screening with standard exam vs. Peek Acuity for referral to further medical management

    Visual acuity score determined by Peek Acuity will be compared to the score from standard exam to determine accuracy where the score from standard exam is the accepted value

    Visit 1(up to 30 minutes)

Secondary Outcomes (1)

  • Efficiency of screening with standard exam and Peek Acuity

    Visit 1(up to 30 minutes)

Study Arms (2)

Peek Acuity Screening

EXPERIMENTAL

Cell phone application to be used for visual acuity screening.

Other: Peek Acuity

Standard Visual Screening

ACTIVE COMPARATOR

Standard visual acuity screening administered at Duke University Eye Center regarded as the gold standard.

Other: Standard Visual Screening

Interventions

Cell phone application for visual acuity screening

Peek Acuity Screening

Visual screening exam conducted in Duke University Eye Center

Standard Visual Screening

Eligibility Criteria

Age3 Years - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Capable and willing to provide consent
  • to less than 18 years of age

You may not qualify if:

  • Unable or unwilling to give consent
  • Over 18 years of age
  • Less than 3 years of age

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke UMC

Durham, North Carolina, 27710, United States

Location

Related Publications (10)

  • Barry JC, Konig HH. Test characteristics of orthoptic screening examination in 3 year old kindergarten children. Br J Ophthalmol. 2003 Jul;87(7):909-16. doi: 10.1136/bjo.87.7.909.

    PMID: 12812897BACKGROUND
  • Miller JM, Dobson V, Harvey EM, Sherrill DL. Cost-efficient vision screening for astigmatism in native american preschool children. Invest Ophthalmol Vis Sci. 2003 Sep;44(9):3756-63. doi: 10.1167/iovs.02-0970.

    PMID: 12939288BACKGROUND
  • Anstice N, Spink J, Abdul-Rahman A. Review of preschool vision screening referrals in South Auckland, New Zealand. Clin Exp Optom. 2012 Jul;95(4):442-8. doi: 10.1111/j.1444-0938.2012.00713.x. Epub 2012 Apr 17.

    PMID: 22507224BACKGROUND
  • Simons K. Preschool vision screening: rationale, methodology and outcome. Surv Ophthalmol. 1996 Jul-Aug;41(1):3-30. doi: 10.1016/s0039-6257(97)81990-x.

    PMID: 8827927BACKGROUND
  • Schmucker C, Grosselfinger R, Riemsma R, Antes G, Lange S, Lagreze W, Kleijnen J. Diagnostic accuracy of vision screening tests for the detection of amblyopia and its risk factors: a systematic review. Graefes Arch Clin Exp Ophthalmol. 2009 Nov;247(11):1441-54. doi: 10.1007/s00417-009-1150-2. Epub 2009 Aug 11.

    PMID: 19669781BACKGROUND
  • Alexander P, Rahi JS, Hingorani M. Provision and cost of children's and young people's eye services in the UK: findings from a single primary care trust. Br J Ophthalmol. 2009 May;93(5):645-9. doi: 10.1136/bjo.2008.149203. Epub 2008 Dec 19.

    PMID: 19098035BACKGROUND
  • Joish VN, Malone DC, Miller JM. A cost-benefit analysis of vision screening methods for preschoolers and school-age children. J AAPOS. 2003 Aug;7(4):283-90. doi: 10.1016/s1091-8531(03)00116-2.

    PMID: 12917617BACKGROUND
  • Bastawrous A, Rono HK, Livingstone IA, Weiss HA, Jordan S, Kuper H, Burton MJ. Development and Validation of a Smartphone-Based Visual Acuity Test (Peek Acuity) for Clinical Practice and Community-Based Fieldwork. JAMA Ophthalmol. 2015 Aug;133(8):930-7. doi: 10.1001/jamaophthalmol.2015.1468.

    PMID: 26022921BACKGROUND
  • Committee on Practice and Ambulatory Medicine Section on Ophthalmology; American Association of Certified Orthoptists; American Association for Pediatric Ophthalmology and Strabismus; American Academy of Ophthalmology. Eye examination in infants, children, and young adults by pediatricians: organizational principles to guide and define the child health care system and/or improve the health of all children. Ophthalmology. 2003 Apr;110(4):860-5. doi: 10.1016/S0161-6420(03)00414-7.

    PMID: 12689914BACKGROUND
  • Zhao L, Stinnett SS, Prakalapakorn SG. Visual Acuity Assessment and Vision Screening Using a Novel Smartphone Application. J Pediatr. 2019 Oct;213:203-210.e1. doi: 10.1016/j.jpeds.2019.06.021. Epub 2019 Jul 18.

MeSH Terms

Conditions

Vision Disorders

Condition Hierarchy (Ancestors)

Sensation DisordersNeurologic ManifestationsNervous System DiseasesEye DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Sarah K Jones

    Duke University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SCREENING
Intervention Model
CROSSOVER
Model Details: Patient randomly assigned to either be screened first with standard clinic technique or cell phone application. Patient is then screened with other method.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 5, 2017

First Posted

July 11, 2017

Study Start

August 25, 2017

Primary Completion

December 15, 2017

Study Completion

December 15, 2017

Last Updated

June 28, 2019

Record last verified: 2018-09

Data Sharing

IPD Sharing
Will not share

Locations