Effect of posture on intra ocular pressure: a pilot study

Srikanth Sajja, Rupa Maddala


Background:The objective of the present study was to investigate the change in IOP with respect to posture using Schiotz tonometer. IOP values differ in the same individual when measured with the subject sitting or supine and IOP have been reported to be higher with the subject supine than when sitting.

Methods:The entire work was accomplished with the 100 male subjects with age ranging between 20 and 40 years. The IOP values were recorded from the individuals using Schiotz tonometer (Improved). The intraocular pressure was recorded in the lying position followed by a rest of 2 minutes in the sitting position.

Results:The Mean IOP in supine position in Right & Left eyes was 16.261 ± 2.47 mmHg & 16.14 ± 2.53 mmHg respectively. The Mean IOP in sitting position in right & left eyes was 14.04 ± 2.52 mmHg & 13.88 ± 2.81mmHg respectively. In our study, the mean IOP was decreased by 2.22 mmHg (13.65%) & 2.26 mmHg (14.01%) in right and left eye’s on changing the posture from supine to sitting.

Conclusion:From the results of our study, it can be concluded that posture has a definite effect on IOP & the mean IOP was more in supine position than in sitting position.


Glaucoma, Intraocular pressure, Tonometry

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