Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00001346 · ClinicalTrials.gov registry record

Diabetic Retinopathy and Visual Function Study

A clinical trial, sponsored by National Eye Institute (NEI).

Completed
Registry status
100
Enrollment target

NCT00001346: Completed study, sponsored by National Eye Institute (NEI).

NCT00001346 is a clinical trial that has completed, run by National Eye Institute (NEI). The registered enrollment target is 100 participants. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00001346 has completed, sponsored by National Eye Institute (NEI).

COMPLETED
Registry status
100 participants
Enrollment target

Study Summary

The purpose of this study is to evaluate possible mechanisms of central visual loss in patients with diabetes mellitus. The visual loss of interest to be investigated is that associated with macular edema (prior to and following laser photocoagulation treatment) and that associated with panretinal photocoagulation. The evaluation will be performed with psychophysical testing, i.e., static perimetry and contrast sensitivity function. Of particular interest, the mechanisms of visual loss associated with macular edema (prior to and following laser photocoagulation) will be further investigated. Photoreceptor-mediated visual loss will be assessed by measurements of the Stiles-Crawford effect. Visual loss mediated by post-receptoral retinal changes will be assessed by measuring the Westheimer spatial desensitization/sensitization effect.

Trial Details

FieldValue
Enrollment Target 100 participants
Start Date 1992-11
Est. Completion 2000-10
National Eye Institute (NEI)

221 total trials

What the finished NCT00001346 record still lists

NCT00001346 is an observational study that tracks outcomes without assigning an intervention. The registered 100 participants enrollment target is mid-sized for trials with a published cap.

The record links to 0 conditions, and to 0 interventions.

NCT00001346 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00001346 about?

NCT00001346 is a clinical study titled "Diabetic Retinopathy and Visual Function Study". The purpose of this study is to evaluate possible mechanisms of central visual loss in patients with diabetes mellitus. The visual loss of interest to be investigated is that associated with macular edema (prior to and following laser photocoagulation treatment) and that associated with panretinal p...

What is the current status of trial NCT00001346?

This trial is currently completed. The enrollment target is 100 participants. The study started on 1992-11. Estimated completion is 2000-10.

Who is sponsoring clinical trial NCT00001346?

This trial is sponsored by National Eye Institute (NEI), which has 221 total clinical trials registered on ClinicalTrials.gov.

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT01048281 · 100 participants

    Clinical & Pathological Studies of Upper Gastrointestinal Carcinoma

  • NCT01161199 · 100 participants

    The Use of Leukapheresis to Support HIV Pathogenesis Studies

  • NCT01327690 · 100 participants · Early Phase 1

    Mental Health in Veterans and Families After Group Therapies

  • NCT01730781 · 100 participants

    Imaging Cannabinoid Receptors Using Positron Emission Tomography (PET) Scanning

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00001346, the US trial registry maintained by the National Library of Medicine. NCT00001346 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.