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CHOICE OF SUBJECTIVE OCULAR REFRACTION TECHNIQUE AND CORNEAL TOPOGRAPHY OF KERATOCONUS
Sponsor: University Hospital, Clermont-Ferrand
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.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
52
Start Date
2019-11-18
Completion Date
2020-03-06
Last Updated
2026-08-07
Healthy Volunteers
No
Conditions
Interventions
Cylinder
Patients who receive the Jackson Cross Cylinder Method
Dial
Patients who receive the Astigmatic Dial Technique Method.
Slit
Patients who receive the Stenopeic slit Method.
Locations (1)
Chu Clermont Ferrand
Clermont-Ferrand, France