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OpenTrials
Completed

NCT Number: NCT05717543

Imaging of Corneal and Crystalline by Near Infrared Retro-illumination

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.

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Key information

Conditions

Eye Diseases Glaucoma Glaucoma, Open-Angle Ocular Hypertension

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

CHU Saint-Etienne

Saint-Etienne, France

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Retro-illuminator

Device

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

Primary outcomes

  1. Percentage of pictures without reflection (%)

    Time frame: Year: 1

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

Secondary outcomes

  1. Percentage of pictures clean on the pathological area (%)

    Time frame: Year: 1

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

  2. Serious adverse events

    Time frame: Year: 1

    Number of serious adverse events

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire de Saint Etienne

Other

Registry information

Acronym: RETRO-ILLUMI

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Feb 8, 2023
Registry last updated
Apr 26, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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