A cross-sectional study of association between ocular pressures and different grades of myopia in young adults

Authors

  • Sudha B. Sreenivas
  • Ramya C. M.
  • Vinitha K. R.
  • Sreenivas M. R.
  • Arun Gopi

DOI:

https://doi.org/10.51248/.v42i5.1803

Keywords:

Intraocular pressure, ocular perfusion pressure, myopia

Abstract

Introduction and Aim: My­opia is one of the most common refractive errors causing visual disability worldwide. Uncorrected refractive error poses a public health challenge especially in young adults who have to spend most of their time in literary works. Intra ocular pressure (IOP) is one of the crucial factors intertwined in the pathophysiology of myopia. Ocular perfusion pressure (OPP) determines ocular blood flow. Studies done on association between IOP and refractive errors are contradictory. There is paucity of literature on relationship between OPP and myopia. Hence this original article aimed to assess the association of IOP and OPP changes with myopia and to analyze the relationship between ocular pressures with severity of myopia.

 

Materials and Methods: Hundred normal adults in the age group of 18-24 years of either gender were recruited for the present study. Voluntary written and informed consent was sought from all participants and the refractive power of their eyes was noted. They were categorised into three groups based on the severity of myopia. Controls were the emmetropes. All participants were asked to relax for 5-10 minutes and the resting BP and IOP were recorded using sphygmomanometer and rebound tonometer respectively. OPP was calculated.

 

Results: IOP values were comparatively higher in myopes than emmetropes.  A significant reduction in OPP values were observed in moderate myopes.

 

Conclusion: Myopes have a higher IOP suggesting myopia is one of the major risk factor for ocular hypertension. Low OPP values in moderate myopes indicate reduced ocular perfusion, making the progressive myopes highly susceptible to glaucoma. 

Author Biographies

Sudha B. Sreenivas

Department of Physiology, JSS Medical College, JSS AHER Sri Shivarathreeshwara Nagar, Bannimantap, Mysuru-570015, Karnataka, India

Ramya C. M.

Department of Physiology, JSS Medical College, JSS AHER Sri Shivarathreeshwara Nagar, Bannimantap, Mysuru-570015, Karnataka, India

Vinitha K. R.

Department of Physiology, JSS Medical College, JSS AHER Sri Shivarathreeshwara Nagar, Bannimantap, Mysuru-570015, Karnataka, India

Sreenivas M. R.

Eye Care Clinic, Dhanvanthri Road, Mysuru, Karnataka, India

Arun Gopi

Department of Community Medicine, JSS Medical College, JSS AHER Sri Shivarathreeshwara Nagar, Bannimantap, Mysuru-570015, Karnataka, India

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Published

2022-11-14

How to Cite

1.
B. Sreenivas S, C. M. R, K. R. V, M. R. S, Gopi A. A cross-sectional study of association between ocular pressures and different grades of myopia in young adults. Biomedicine [Internet]. 2022 Nov. 14 [cited 2022 Nov. 27];42(5):1065-8. Available from: https://biomedicineonline.org/home/article/view/1803

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