2 C/D: Cup-to-disc ratio
, RNFL: Retinal nerve fiber layer Table 2.
Objective: To evaluate the correlation between Central Corneal Thickness (CCT) and Visual Field (VF) defect parameters like Mean Deviation (MD) and Pattern Standard Deviation (PSD), Cup-to-Disc Ratio
(CDR) and Retinal Nerve Fibre Layer Thickness (RNFL-T) in Primary Open-Angle Glaucoma (POAG) patients.
The automatic glaucoma detection technique processes this 2-D fundus image and identifies the Cup-to-Disc ratio
1) The unaffected eye often has a 'disc-at-risk' appearance with a small cup-to-disc ratio
3% (159/180 images) and 100% in detecting diabetic retinopathy and abnormal cup-to-disc ratio
Direct ophthalmoscopy has been suggested as a practical screening test for the primary care setting, with the presence of one or more of four signs constituting a positive test: (1) a horizontal cup-to-disc ratio
greater than or equal to 0.
The cup-to-disc ratio
should be analysed in the horizontal and
Optic disc assessments were performed biomicroscopically with a 90-D lens and the average of vertical cupping was recorded as the cup-to-disc ratio
Disc size and cup-to-disc ratio
are important parameters in the assessment of disc damage in glaucoma.
Dilated fundus examination of the right eye revealed a normal retina and a glaucomatous optic nerve head with a cup-to-disc ratio
Dilated fundus examination demonstrated a cup-to-disc ratio
92 RNFL: Retinal nerve fiber thickness, C/d ratio: cup-to-disc ratio
Figure 1d Optic disc morphology of the same patient OD (N=3) OS (N=3) OD-OS Imax/Smax 0.