NCT04242836

Development and Validation of a Digital Optotype for Near Vision in Greek Language.

Development and Validation of a Computer-based Digital Near-vision Optotype Based on the Greek Version of the Print MNREAD.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 100 (actual)
• Sponsor: Democritus University of Thrace · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Accepted

Summary

Primary objective of our study is to develop and validate a computer-based digital near-vision optotype based on the Greek version of the print MNREAD.

Detailed description

Present study aims to develop and validate a computer-based digital near-vision optotype based on the Greek version of the print MNREAD. Specifically, it aims to evaluate the level of agreement between the conventional printed greek MNREAD chart and the corresponding digital chart, as well as test-retest reliability of the digital optotype. To address these aims, four reading parameters measured with the print and the digital version are compared. These parameters are the following: 1. Reading Acuity (RA) 2. Maximum Reading Speed (MRS) 3. Critical Print Size (CPS) 4. Accessibility Index (ACC) All the comparisons take place in two groups: a) a Normal Vision Group (NVG), and b) a Low Vision Group (LVG) in order to estimate the reading capacity in a population with a wide range of vision.

Conditions

• Presbyopia
• Low Vision
• Near Vision

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	MNREAD testing	One randomly selected eye is included for each study participant. Participants respond to the near vision chart with defined environmental circumstances at 40cm viewing distance. All four parameters (RA, MRS, CPS and ACC) are evaluated.

Timeline

• Start date: 2019-03-28
• Primary completion: 2019-06-28
• Completion: 2019-11-28
• First posted: 2020-01-27
• Last updated: 2020-01-27

Locations

1 site across 1 country: Greece