Cup Disc Ratio Calculator

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An important part of the clinical assessment of a glaucoma patient is the evaluation of the damage caused to the optic disc. It is important to accurately measure the cup to disc ratior (CDR) in glaucoma and ocular hypertensive patients. This computer software program which we call "CDRCalculator"
allows you to rapidly measure the CDR of digital images of the optic disc.
CDRCalculator loads and displays fundus images stored in PPT slides. All you need to do is mark the respective diameters of the cup and disc with a blue and green line respectively. The software automatically calculates and displays the vertical and horizontal CDR.
We are currently evaluating the inter-observer & intra-observer variation using the CDRCalculator to measure the CDR.

CDRCalculator Web Site


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