Spaeth/Richman Contrast Sensitivity Test

Completed · Not applicable

Conditions studied: Glaucoma

In brief

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.

Key facts

Study ID: NCT01300949
Run by: Wills Eye
People needed: 314
Starts: 2010-01-01
Expected to finish: 2014-04-01
Last updated by the study team: 2018-12-11

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

18 yrs of age and older
able to provide fully informed consent
70 controls (patients with no ocular disease affecting visual acuity or visual function), 10 from each decade of life: 20-30, 30-40, 40-50, 50-60, 60-70, 70-80, 80+.
105 patients with ocular hypertension or any type of glaucoma (15 subjects per age decade). Glaucoma patients will not have macular degeneration or visual acuity affected by any function other than glaucoma.
40 patients with macular degeneration: 10 with visual acuity 20/40 or better, 10 with visual acuity between 20/40 and 20/60, 10between 20/100 and 20/400, and 10 with 20/400 or worse.
40 patients with cataracts: 10 with lens opacity 1+nuclear sclerosis, 10 with 2 + nuclear sclerosis, 10 with 3 + nuclear sclerosis, 10 with 4 + nuclear sclerosis.
60 patients with refractive error: 10 with myopia -5 diopters or greater, 10 with myopia between -5 and -2.5, 10 with myopia between -2.5 and -0.5, 10 with myopia between -0.5 and 0.5, 10 with myopia between 0.5 and 2.5, and 10 with myopia > 2.5.

You may not qualify if…

any other diseases affecting visual acuity

Where it is running

Wills Eye Institute — Philadelphia, Pennsylvania, United States

Full record on ClinicalTrials.gov

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