NCT02627339

Brief Summary

The purpose of this study is to build a database of results from a new test that measures contrast sensitivity (the Spaeth-Richman Contrast Sensitivity Test (SPARCS)). Contrast sensitivity is an important part of your ability to see. When contrast sensitivity decreases, you are less able to see objects and detect motion. For instance, if you have decreased contrast sensitivity, you might be less able to read, see in the dark, drive, hit a ball, or walk safely. Decrease in contrast sensitivity leads to a decrease in quality of life.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
208

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2012

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2012

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2015

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

December 8, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 10, 2015

Completed
Last Updated

November 21, 2016

Status Verified

November 1, 2016

Enrollment Period

3 years

First QC Date

December 8, 2015

Last Update Submit

November 17, 2016

Conditions

Glaucoma

Keywords

Contrast Sensitivity

Outcome Measures

Primary Outcomes (1)

  • SPARCS results

    Results from each eyes response to the contrast sensitivity test

    1 day

Study Arms (1)

Healthy controls

Healthy controls age 10 to 90 years

Eligibility Criteria

Age10 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy controls with no eye diseases

You may qualify if:

  • years or older and healthy
  • No eye diseases

You may not qualify if:

  • Patients with glaucoma, macular degeneration, diabetic retinopathy, corneal disease, eye movement disorders or any eye disease causing vision loss
  • Patients with visual acuity worse than 20/40
  • Patients with cataracts or opacities 2+ or greater
  • Patients with refractive error +6 -6 or greater

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Wills Eye Glaucoma Service

Philadelphia, Pennsylvania, 19107, United States

Location

Related Publications (1)

  • Richman J, Spaeth GL, Wirostko B. Contrast sensitivity basics and a critique of currently available tests. J Cataract Refract Surg. 2013 Jul;39(7):1100-6. doi: 10.1016/j.jcrs.2013.05.001. Epub 2013 May 23.

    PMID: 23706926BACKGROUND

MeSH Terms

Conditions

Glaucoma

Condition Hierarchy (Ancestors)

Ocular HypertensionEye Diseases

Study Officials

  • George L Spaeth, MD

    Medical Director, Glaucoma Research Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
1 Day
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
George L. Spaeth MD

Study Record Dates

First Submitted

December 8, 2015

First Posted

December 10, 2015

Study Start

August 1, 2012

Primary Completion

August 1, 2015

Study Completion

August 1, 2015

Last Updated

November 21, 2016

Record last verified: 2016-11

Data Sharing

IPD Sharing
Will not share

Locations

US(1)