CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 314 enrolled
Drug / intervention
Spaeth/Richman Contrast Sensitivity Test +1 moreother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT01300949
NCT01300949N/ACompleted
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Validation and Reproducibility of Spaeth/Richman Contrast Sensitivity Test

Wills Eye·interventional·Posted Feb 23, 2011·Updated Dec 11, 2018

In Brief

A clinical study evaluating Spaeth/Richman Contrast Sensitivity Test and Pelli-Robson Contrast Sensitivity Chart for Glaucoma. Completed, enrolled 314 participants across 1 site.

Detailed Summary

The Spaeth-Richman Contrast Sensitivity (SPARCS) test is a new method of assessing contrast sensitivity. The test, another way to measure vision, is performed on any standard computer with internet access. Patients will be tested with SPARCS and with the standard Pelli-Robson contrast test.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsGlaucoma
CountriesUnited States
CollaboratorsPfizer

Timeline

N/ACompletedFinished
20102011201220132014201520162017201820192020202120222023202420252026
First PostedFeb 23, 2011
Enrollment StartJan 1, 2010
Primary CompletionApr 1, 2014
TodayJul 2, 2026
Enrollment to primary: 4.3 yearsPosted 15.4 years ago

Interventions

Spaeth/Richman Contrast Sensitivity Testother

internet based computerized contrast sensitivity test measuring central and peripheral vision using black and white stripes that decrease in contrast by fading to a white background.

Pelli-Robson Contrast Sensitivity Chartother

wall chart contrast sensitivity test measuring central vision using black letters that decrease in contrast by fading to a white background.