Validation of DDIVAT Digital Optotypes for Distance Visual Acuity Testing Among the Bulgarian Population

Plovdiv Medical University

Status: Invitation-only

Conditions: Vision Screening

Treatments: Diagnostic Test: To test visual acuity in 150 Bulgarian patients over 18 years of age using Snellens visual acuity chart and DDIVAT optotypes

Study type: Observational

Funder types: Other

Identifiers

NCT07208838

PlovdivMUDDIVAT

Details and patient eligibility

About

To compare distance visual acuity in Bulgarian patients over 18 years of age using two different methods - the Snellen method and the DIDIVAT digital online optotypes. For the purpose of this study, it is planned to examine native visual acuity (with and without prescribed optical correction), without additional mydriasis in both ways, of 150 Bulgarian patients (75 women and 75 men) over 18 years of age, hospitalized in a university eye clinic at St. George University Hospital and healthy volunteers willing to participate in the study. The statistical analysis that will be performed will aim to compare whether the two methods for determining distance visual acuity are identical in results, as well as to validate the application for the Bulgarian population.The study is expected to prove that the distance visual acuity of patients examined by both methods is identical.

Enrollment: 150 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Bulgarian speaking patients (75 women and 75 men) over 18 years of age, hospitalized in a university eye clinic at St. George University Hospital and healthy volunteers willing to participate in the study.

Exclusion criteria

• Patients of less than 18 years of age.

Trial design

150 participants in 1 patient group

Healthy participants

Description:

75 males and 75 females over 18 years of age

Treatment:

Diagnostic Test: To test visual acuity in 150 Bulgarian patients over 18 years of age using Snellens visual acuity chart and DDIVAT optotypes