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A New Reproducible Method of Measuring C/D Ratio of Digital Stereo Images of Optic Disc

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01683942
Recruitment Status : Completed
First Posted : September 12, 2012
Last Update Posted : September 12, 2012
Information provided by (Responsible Party):
Meir Medical Center

Brief Summary:
Development of a novel computer software that will assist in measuring the cup/disc ratio in digital stereo optic disc images.

Condition or disease
Developing Novel Technique of Measuring C/D Ratio From Digital Stereo Optic Disc Images Intraobserver Reproducibility of C/D Measurements Interobserver Variability of C/D Measurements

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Study Type : Observational
Actual Enrollment : 250 participants
Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: A New Reproducible Method of Measuring C/D Ratio of Digital Stereo Images of Optic Disc
Study Start Date : August 2012

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
500 consecutive digitalized optic disc photos of 250 patients attending the Glaucoma Service between 1996-2012 will be extracted from a database of optic disc photos at the Glaucoma Service of the Ophthalmology Department, Meir Medical Center, Kfar Saba, Israel.

Inclusion Criteria:

Patients who attended the Glaucoma service Patients with at least one pair of documented digital stereo optic disc images Satisfactory Quality of image allowing Cup Disc Ratio Evaluation

Exclusion Criteria:

Unsatisfactory Quality of image allowing Cup Disc Ratio Evaluation Novel software technique unable to process or analyze the image

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Responsible Party: Meir Medical Center Identifier: NCT01683942     History of Changes
Other Study ID Numbers: NesherMimouni
First Posted: September 12, 2012    Key Record Dates
Last Update Posted: September 12, 2012
Last Verified: September 2012
Keywords provided by Meir Medical Center:
cup disc ratio measurement
digital stereo optic disc images