Actively Recruiting

Phase Not Applicable
Age: 18Years - 80Years
All Genders
Healthy Volunteers
ID06976034

Ocular Examination with Optical Transmission Tomography (OTT) Compared to OCT and Specular Microscopy for Glaucoma and Other Eye Diseases

Led by Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts · Updated on 2025-05-16

300

Participants Needed

1

Research Sites

260 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating a new imaging technology called optical transmission tomography (OTT) that provides high-resolution images of the front parts of the eye. This advanced imaging aims to improve understanding of eye diseases by overcoming the limitations of current clinical imaging systems such as optical coherence tomography (OCT), which have restrictions in resolution, speed, and functional access. The study includes both healthy volunteers and patients with various eye conditions affecting the cornea, ocular surface, lens, or glaucoma. Participants will undergo imaging examinations using three different systems: OTT, OCT, and specular microscopy (SM). For healthy subjects, imaging sessions with each system will be performed twice, at the start and again after two years. For patients, imaging will be done at inclusion and follow-up visits based on their disease assessment schedule, lasting up to four years. Multiple images will be taken by two different operators at different positions during these sessions. During the study, researchers will assess image quality, endothelial cell density, and the ability to visualize new corneal and lens structures over periods ranging from one day to four years. Participants will have multiple imaging sessions and evaluations performed by different operators to ensure detailed data collection. The study will monitor and compare these imaging methods to better understand eye structures and diseases over time.

CONDITIONS

Official Title

oCular Examination at Cell RESolution With Optical TransmissionTomography

Who Can Participate

Age: 18Years - 80Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Patients aged 18 to 80 years
  • Male or female
  • Have an ocular disease affecting the cornea, ocular surface, lens (cataract), glaucoma, or require refractive surgery or post-refractive surgery follow-up
  • Covered by the French Assurance Maladie
  • Have signed an express, free and informed consent form
  • Healthy volunteers aged 18 to 80 years
  • Male or female
  • Healthy with no known eye pathology affecting ocular structures
  • Covered by the French Assurance Maladie
  • Have signed an express, free and informed consent form
Not Eligible

You will not qualify if you...

  • Unable to hold a still position on a standard ophthalmic chin rest
  • Having conjunctivitis or another active contagious eye disease
  • Having an implanted pacemaker or other electronic medical device
  • Having a predisposition to iridocorneal angle closure
  • Being a vulnerable person or under legal protection (including pregnant or breast-feeding women, persons under guardianship)

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

1
2
3
+1

Trial Site Locations

Total: 1 location

1

Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts

Paris, France, 75012

Actively Recruiting

Loading map...

Research Team

N

Nabil BROUK

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NON_RANDOMIZED

Model

PARALLEL

Primary Purpose

OTHER

Number of Arms

2

Frequently Asked Questions

Have more questions? Get in touch with our team for quick support

Not the Right Trial for You?

Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.

Already have an account? Log in here