MedTrace Logo

CHOICE OF SUBJECTIVE OCULAR REFRACTION TECHNIQUE AND CORNEAL TOPOGRAPHY OF KERATOCONUS

NCT04174209 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2020-03-20

No results posted yet for this study

Summary

Keratoconus is a rare evolving corneal ectasia that alters visual acuity. To improve spectacle-corrected visual acuity, various subjective refraction techniques can be used.

The subjective refraction techniques of keratoconus-carrying patients have never been studied.

The main hypothesis is that the most suitable subjective ocular refraction method varies with the corneal topography of the keratoconus.

The main objective is to define the most appropriate refractive technique(s) based on corneal topographies in order to provide keratoconus-affected patients with the best spectacle-corrected visual acuity.

Conditions

  • Keratoconus
  • Alteration of Visual Acuity

Interventions

BEHAVIORAL

Cylinder

Patients who receive the Jackson Cross Cylinder Method

BEHAVIORAL

Dial

Patients who receive the Astigmatic Dial Technique Method.

BEHAVIORAL

Slit

Patients who receive the Stenopeic slit Method.

Sponsors & Collaborators

  • University Hospital, Clermont-Ferrand

    lead OTHER

Principal Investigators

  • Frédéric Chiambaretta · University Hospital, Clermont-Ferrand

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-11-18
Primary Completion
2020-03-06
Completion
2020-03-06

Countries

  • France

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04174209 on ClinicalTrials.gov