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The early discovery of optic nerve head changes via careful assessment prompts initial finding and the board of essential open point glaucoma. The current examination was attempted to break down to the optic nerve head in patients of open point glaucoma regarding visual field defects.110 eyes of 60 patients were concentrated in this cross-sectional investigation. The mean age of the patients was 58.26±10.44 years, with 30 males and 30 females. 15% of the patients were suffering from hypertension. The mean IOP among the eyes was 18.63 ±4.17 mm of Hg. The mean vertical C/D ratio was 0.61 ±0.12. 89.09% of patients had a medium disc size. The R/D ratio among patients showed that majority of eyes having RD ratio of 0.01-0.1 (30.91%). HPA grades showed that 32.72% had severe visual field defects. 97.30% of eyes had a contiguous visual loss as compared to noncontiguous (2.70%). The nasal field was mostly affected by 51.35%. DDLS has a stronger correlation with Mean Defect than Vertical C/D ratio and with HPA classification than the Vertical C/D ratio. DDLS to be a simple, brisk, modest and precise strategy to record ONH harm. It seems, by all accounts, to be better than the C/D proportion for optic plate assessment.
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