Imaging of Corneal and Crystalline by Near Infrared Retro-illumination

Centre Hospitalier Universitaire de Saint Etienne384 enrolled

Overview

Retroillumination photography is difficult. The reflections on the cornea and the lens are constant and prevent from obtaining a complete and clear image. Study team have modified a slit lamp intended to photograph the anterior segment of the eye in retroillumination by using a light source in the near infrared (780 nm), and a process which eliminates the reflections.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

384

Conditions

Eye Diseases

Interventions

Retro-illuminatorDEVICE

The device Retro-illuminator will be used to photograph the eyes.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patient with corneal pathology, crystalline pathology, or pigmentary glaucoma with transilluminable iris. In case of bilateral disease, both eyes will be photographed * Patient having received an instillation of eye drops to dilate the pupil of the eye to be photographed (or of both eyes). Exclusion Criteria: * Major blepharospasm * Poor or no pupillary dilation: patient with allergy or intolerance to eye drops used for pupillary dilation, refusal of pupillary dilation * Pregnant or breastfeeding patient * Person under legal protection

Locations (1)

CHU Saint-Etienne

Saint-Etienne, France

Outcomes

Primary Outcomes

Percentage of pictures without reflection (%)

Evaluation of the device's retroillumination. Pictures without reflection: no reflection or a minimal reflection without loss of information.

Time frame: Year: 1

Secondary Outcomes

Percentage of pictures clean on the pathological area (%)

Evaluation of the device's retroillumination. Pictures clean : absence of blur, or minimal blurred that does not result in loss of information..

Time frame: Year: 1

Serious adverse events

Number of serious adverse events

Time frame: Year: 1

Data from ClinicalTrials.gov

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