The Relationship Between Blood Pressure and Pupil to Limbus Diameter Ratio in Hypertensive Women: A Pilot Study

Archana, R; Sailesh, Kumar Sai; Bashetti, Srilatha; Mishra, Soumya

doi:10.22159/ajpcr.2017.v10i11.20528

Cited by 1 publication

(2 citation statements)

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“…9 Earlier studies reported a positive correlation between the PLD ratio and blood pressure and pulse rate. [10][11][12][13] The ratio can be measured by the two-box method. The pupil dilation and constriction are regulated by the autonomic activity.…”

Section: Discussionmentioning

confidence: 99%

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Relationship between pupil to limbus diameter ratio with blood pressure and pulse rate in young adults: An observational study

Himanshu Sharma,

Ishrat Khan,

Varsha Porwal

et al. 2024

Asian J Med Sci

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Background: Autonomic function tests play a crucial role in the diagnosis and prognosis of clinical conditions. Although there are multiple autonomic function tests available, there is still a need for rapid and less expensive tests for the benefit of the general population. The pupil-to-limbus diameter (PLD) ratio is one such test that is simple and cost-effective. It uses the principle of pupil dilation and constriction due to the influence of the autonomic neurons’ activity. Aims and Objectives: The present study aimed to observe a correlation between PLD ratio with blood pressure and pulse rate in young adults. Materials and Methods: The present study was conducted at the Department of Physiology, Jhalawar Medical College, Jhalawar. The present study was an observational study conducted among 1st-year medical students in the age group of 18–24 years. PLD ratio was measured by the two-box method as described in the literature. After providing 3–5 min of rest, blood pressure and pulse were recorded in the right arm in the sitting position by a digital blood pressure monitor. Results: Positive correlation was observed between the PLD ratio of right eye and pulse rate (r=0.9696). There is a weak negative correlation exists between the PLD ratio of right eye and systolic blood pressure (r value=−0.3802). Conclusion: The study concludes that the PLD ratio correlates with autonomic activity. However, there is a need for a study with large population to confirm the correlation. Furthermore, there is a study to assess the autonomic responses in female participants in different phases of menstrual cycle.

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Section: Discussionmentioning

confidence: 99%

“…The reason for this may be the earlier studies conducted were only in one gender either male or female. 13,14 However, the current study included both genders. Further, as female participants were involved in this, there may be the influence of cyclical changes in the hormones on autonomic activity.…”

Section: Discussionmentioning

confidence: 99%