Acta Scientific Ophthalmology (ISSN: 2582-3191)

Research Article Volume 5 Issue 6

Evaluate Contrast Sensitivity in Glaucoma Patients from 16 - 80 Years

Muhammad Asif Memon1*, Mehak Nazir2, Samina Qamar3, Sadaf Fatima3, Sawera3 and Beenish Atif4

1Lecturer, Glaucoma clinic of Al-Ibrahim Eye Hospital, Karachi, Sindh, Pakistan
2MPH (Master in Public Health), CHPE, Lecturer, Glaucoma clinic of Al-Ibrahim Eye Hospital, Karachi, Pakistan
3BS (Vision Science), Optometrist, Glaucoma clinic of Al-Ibrahim Eye Hospital, Karachi, Pakistan
4M.B.B.S, General Physician Department and institution of Glaucoma clinic of Al-Ibrahim Eye Hospital, Karachi, Pakistan

*Corresponding Author: Muhammad Asif Memon, Lecturer, Glaucoma clinic of Al-Ibrahim Eye Hospital, Karachi, Sindh, Pakistan.

Received: February 24, 2022; Published: May 04, 2022

Abstract

Purpose: To measure the contrast sensitivity in different types of glaucoma patients.

Material and Method: An observational and non-probability convenient sampling study from February to August 2020, using lea contrast sensitivity, Snellen visual acuity charts, trial box and occlude.

Result: Out of 60 patients 37 were males and 23 were females. Mean onset age was 38.4 years between 16-80 years. 33 (55%) patients were diagnosed with Primary Open Angle Glaucoma, 17 (28.3%) patients with Primary Close Angle Glaucoma, 7 (11.7%) patients with Acute Closure Glaucoma and 3 (5%) patients with Secondary Glaucoma. Similar with Glasses 46 (76.7%) patients had visual acuity 6/6 to 6/12, 11 (81.3%) patients had 6/18 to 6/36 and 3 (5%) patients had 6/60. According to contrast sensitivity 30 (50%) patients had 1.25% (80%), 21 had 2.50% (40%) and 9 had 5% (20%). 15 subjects had 1.25% (80%), 13 subjects had 2.5% (40%) and 5 subjects had 5% contrast sensitivity in POAG. 11 subjects had 1.25% (80%), 4 subjects had 2.5% (40%) and 2 subjects had 5% contrast sensitivity in PCAG. 3 subjects had 1.25% (80%). 3 subjects had 2.5% (40) and 2 subjects had 5% contrast sensitivity in ACG.

Conclusion: There is reduction in contrast visual acuity with and without refraction most of patients had variation at level of Contrast Visual Acuity in Primary Open Angle Glaucoma.

Keywords: Contrast Sensitivity; Open Angle; Close Angle; Acute Closure; Glaucoma; Optic Nerve; Intraocular Pressure; Periphery Vision

References

  1. Shafi M. Jatoi Glaucoma, 4th Hyderabad, Pakistan: Paramount publishing enterprise (2013).
  2. Fechtner RD and Weinreb. “Mechanisms of optic nerve damage in primary open angle glaucoma”. Survey of Ophthalmology1 (1994): 23-42.
  3. Burgoyne CF., et al. “The optic nerve head as a biomechanical structure: a new paradigm for understanding the role of IOP-related stress and strain in the pathophysiology of glaucomatous optic nerve head damage”. Progress in Retinal and Eye Research 1 (2005): 39-73.
  4. Aung T., et al. “Acute primary angle-closure: long-term intraocular pressure outcome in Asian eyes”. American Journal of Ophthalmology1 (2001): 7-12.
  5. Mohammed MA and Haj. “Study of Glaucoma s prevalence in Atbara locality, Sudan, from 2009 to 2016”. Sudanese Journal of Ophthalmology 1 (2020): 1.
  6. Porter LF., et al. “Identification of a novel locus for autosomal dominant primary open angle glaucoma on 4q35. 1-q35. 2”. Investigative Ophthalmology and Visual Science 11 (2011): 7859-7865.
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  8. Chen M., et al. “The role of corneal hysteresis during the evaluation of patients with possible normal-tension glaucoma”. Clinical Ophthalmology (Auckland, NZ) 12 (2018): 555.

Citation

Citation: Muhammad Asif Memon., et al. “Evaluate Contrast Sensitivity in Glaucoma Patients from 16 - 80 Years".Acta Scientific Ophthalmology 5.6 (2022): 18-21.

Copyright

Copyright: © 2022 Muhammad Asif Memon., et al. 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.




Metrics

Acceptance rate35%
Acceptance to publication20-30 days
ISI- IF1.042
JCR- IF0.24

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