Imaging of Corneal and Crystalline by Near Infrared Retro-illumination (RETRO-ILLUMI)

Centre Hospitalier Universitaire de Saint Etienne

Status: Completed

Conditions: Eye Diseases

Treatments: Device: Retro-illuminator

Study type: Interventional

Funder types: Other

Identifiers

NCT05717543

21CH117

2021-A01496-35 (Other Identifier)

Details and patient eligibility

About

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.

Enrollment: 384 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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384 participants in 1 patient group

Patient with corneal pathology, crystalline pathology, or pigmentary glaucoma

Experimental group

Description:

Patient with corneal pathology, crystalline pathology, or pigmentary glaucoma will be included. Imaging by retroillumination will be realized. In case of bilateral disease, both eyes will be photographed

Treatment:

Device: Retro-illuminator