Research Article
Volume 9 Issue 8 - 2018
Normative Data of Optic Nerve Head in Nepalese Population by Confocal Scanning Laser Ophthalmoscopy
Sameer Bhaila1 and Raju Kaiti2*
1Optometrist, Civil Service Hospital, Minbhawan, Kathmandu, Nepal
2Consultant Optometrist, Nepal Eye Hospital, Kathmandu, Nepal
*Corresponding Author: Raju Kaiti, Consultant Optometrist, Nepal Eye Hospital, Kathmandu, Nepal.
Received: June 09, 2018; Published: July 12, 2018
Citation: Sameer Bhaila and Raju Kaiti. “Normative Data of Optic Nerve Head in Nepalese Population by Confocal Scanning Laser Ophthalmoscopy”. EC Ophthalmology 9.8 (2018): 551-555.
Abstract
Purpose: The present study had an aim to ascertain normative data of Optic Nerve Head parameters by using Confocal Scanning Laser Ophthalmoscopy. These normal data can be used as baseline reading for future references; can be used for comparison with special cases like with those having high myopia, glaucoma and other pathologies.
Methods: TThe present study design was a cross-sectional descriptive study. Normal subjects who attended the eye clinic of B.P. Koirala Lions Center for Ophthalmic Studies, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu were recruited in the present study. All subjects completed an ophthalmological examination that included refraction, best corrected visual acuity, slit-lamp biomicroscopy, fundoscopy, and standard white on white automated perimetry (Humphrey 24-2). Participants were then imaged with HRT II, with the scanner’s focus being adjusted according to the patient’s refraction and to obtain the best image.
Results: Fifty normal participants (100 eyes) were included in the study. There were 28 female (56%) and 22 males (44%). The mean ± SD values of age, refractive error (SE) and IOP were 21.38 ± 3.849 years, -0.05 ± 0.174 D and 16.64 ± 2.285 mmHg respectively. Average CDR was 0.187 ± 0.010; mean disc area was 2.777 ± 0.641 mm2; mean cup area was 0.55 ± 0.356 mm2; mean cup depth was 0.205 ± 0.798 mm; mean RNFL thickness was 0.292 ± 0.061 mm.
Conclusion: All pathologies are due to deviation of normal anatomy and physiology. Hence, establishing normative data of optic nerve head worth a lot in glaucoma diagnosis and other optic nerve head pathology screening. HRT can detect optic disc topography abnormalities in glaucoma-suspect eyes before the development of standard achromatic Perimetry abnormalities.
Keywords: Optic Nerve Head; Confocal Scanning Laser Ophthalmoscopy; HRT; Glaucoma
Copyright: © 2018 Sameer Bhaila and Raju Kaiti. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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