NCT05323526

Validation of the Catquest-9SF Questionnaire in Greek Language

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 100 (actual)
• Sponsor: Democritus University of Thrace · Academic / Other
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

Primary objective of this study is the validation of the Catquest-9SF questionnaire in the Greek population.

Detailed description

The present study aims to validate the Catquest-9SF questionnaire in the Greek population. The Catquest-9SF is a questionnaire for assessing the quality of vision of patients with cataract. It consists of 9 questions, two of which concern the subjective assessment of the patient's vision and the other seven the patient's ability to perform various daily activities. The Catquest-9SF questionnaire were translated into the Greek language by a translation team consisting of five members: one translation coordinator, two professional native English-speaking translators, one professional native Greek-speaking translator and one native Greek ophthalmologist fluent in English. Patients participating in the study are asked to complete a questionnaire in Greek before and after cataract surgery. Upon completion of the data collection, data are processed and analyzed through Rasch analysis to determine whether the questionnaire can be used in clinical practice in this translated version. The following clinical parameters are evaluated: age, gender, preoperative and postoperative monocular distance uncorrected visual acuity (UVA), distance best spectacle-corrected visual acuity (BSCVA) of the eye for cataract surgery, binocular distance UVA and BSCVA, refraction, spherical equivalent (SE), and intraocular pressure.

Conditions

• Cataract
• Catquest-9SF

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Catquest-9SF questionnaire	Patients complete the questionnaire preoperatively and postoperatively.
DIAGNOSTIC_TEST	Demographics and clinical parameters	The following clinical parameters are evaluated: age, gender, ocular and systemic comorbidities, educational level, preoperative and postoperative monocular distance uncorrected visual acuity (UVA), distance best spectacle-corrected visual acuity (BSCVA) of the eye for cataract surgery, binocular distance UVA and BSCVA, refraction, spherical equivalent (SE), and intraocular pressure.

Timeline

• Start date: 2020-02-15
• Primary completion: 2021-04-15
• Completion: 2021-12-15
• First posted: 2022-04-12
• Last updated: 2022-04-19

Locations

2 sites across 1 country: Greece