Validation of the SightSave vision test

Not Applicable

• Conditions: Testing of contrast sensitivity; Eye Diseases

• Registration Number: ISRCTN15358662
• Lead Sponsor: ScottHealth Ltd

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2023-02-07
• Last Update Posted: 13 November 2023
• Study Completion: 2023-12-31

Recruitment & Eligibility

• Status: Ongoing
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

1. Has visually significant cataract and listed for a cataract surgery with intraocular lens implant procedure
2. Patient consents to having contrast sensitivity testing on SightSave contrast sensitivity app and logMAR contrast sensitivity charts
3. Patient is able to use the logMAR charts and has capacity to read the letters

Exclusion Criteria

1. Unable to use either or both, logMAR contrast sensitivity chart
2. Unable to read the chart letters

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
ogMAR visual acuity at contrast levels 1.25%, 2.5%, 5%,10%, 25% and 100% measured using 4m logMAR visual acuity charts and the SightSave contrast sensitivity app on a touchscreen device

Secondary Outcome Measures

Name	Time	Method
At the end of the testing:<br>1. Time taken to complete each test<br>2. 5 point scale evaluation by the patient of the ease of testing for them