Cup-disc ratio:LenRto:Pt:Optic nerve.right:Qn:Ophthalmoscopy
cup-disc ratio:lenrto:pt:optic nerve.right:qn:ophthalmoscopy
Cup-disc ratio:Length Ratio:To identify measures at a point in time:Optic nerve.right:Quantitative:Ophthalmoscopy
cup-disc ratio:length ratio:to identify measures at a point in time:optic nerve.right:quantitative:ophthalmoscopy