CovidResearchTrials by Shray Alag


CovidResearchTrials Covid 19 Research using Clinical Trials (Home Page)


HP:0012047: HemeralopiaHPO

Developed by Shray Alag
Clinical Trial MeSH HPO Drug Gene SNP Protein Mutation


Correlated Drug Terms (7)


Name (Synonyms) Correlation
drug2511 SCB-2019 with CpG 1018 adjuvant plus Alum adjuvant Wiki 0.71
drug2510 SCB-2019 with AS03 adjuvant Wiki 0.71
drug1901 Non invasive visual acuity testing Wiki 0.71
drug2509 SCB-2019 Wiki 0.71
drug893 DigiVis visual acuity app Wiki 0.71
drug376 Baricitinib Wiki 0.27
drug2122 Placebo Wiki 0.04

Correlated MeSH Terms (4)


Name (Synonyms) Correlation
D014786 Vision Disorders NIH 1.00
D015354 Vision, Low NIH 1.00
D000550 Amblyopia NIH 0.71
D018352 Coronavirus Infections NIH 0.03

Correlated HPO Terms (2)


Name (Synonyms) Correlation
HP:0000505 Visual impairment HPO 1.00
HP:0000646 Amblyopia HPO 0.71

There are 2 clinical trials

Clinical Trials


1 Validity of at Home Visual Acuity Measurements for Telemedicine During Corona Virus (COVID-19) Pandemic

Prompted by the current COVID-19 pandemic, the American Academy of Ophthalmology has recommended the use of telemedicine to continue ophthalmic care while maintaining patient and provider social distancing. As part of remote examinations, patients may be expected to perform home eye testing for visual acuity and the use of various home visual acuity charts have been proposed to provide clinicians with this vital data. However, the use of home visual acuity exams has not been validated in our patient population. This project aims to determine the efficacy and validity of measuring visual acuity at home with a printed-out ETDRS chart.

NCT04391166 Visual Impairment Other: Non invasive visual acuity testing
MeSH:Coronavirus Infections Vision Disorders Vision, Low
HPO:Hemeralopia Metamorphopsia Visual impairment

Primary Outcomes

Description: Best Visual Acuity per eye

Measure: Best Corrected Visual Acuity (BCVA) Per Eye

Time: From the time they sign the consent until we take their BCVA in clinic. Approximately 1-2 weeks.

2 DigiVis: Validation of Self-testing Visual Acuity Web-based App to Aid Ophthalmic Telephone Consultations During Covid19 Lockdown and Subsequent Social Distancing Crisis

This trial aims to assess the accuracy and test-retest variability of a new digital app which enables community visual acuity testing without requirement of an trained examiner.

NCT04482387 Visual Impairment Amblyopia Suspect Device: DigiVis visual acuity app
MeSH:Amblyopia Vision Disorders Vision, Low
HPO:Amblyopia Hemeralopia Metamorphopsia Visual impairment

Primary Outcomes

Description: Measurement bias in logMAR units between DigiVis testing and standard visual acuity testing score compared to

Measure: Comparison of visual acuity measurement using DigiVis testing and standard visual acuity testing

Time: within 30 days

Description: Upper and lower levels of agreement measured in logMAR units

Measure: Levels of Agreement between DigiVis testing and standard visual acuity testing

Time: within 30 days

Secondary Outcomes

Description: Measurement of test-retest variability

Measure: DigiVis test repeatability

Time: within 30 days


HPO Nodes