Sana Jahangir, Haroon Tayyab, Samina Jahangir, Akhwand Abdul Majeed Jawad, Muhammad Asif Bashir.
Variations in intraocular pressure during valsalva manoeuvre.
J Sharif Med Dent Coll Jan ;1(1):31-3.

Objective: To evaluate variation in intraocular pressure during Valsalva manoeuvre. Methodology: This prospective study was conducted in Department of Ophthalmology, Sharif Medical & Dental College from January to March 2015. In fifty healthy volunteers, hundreds eyes were evaluated with Goldmann's applanation tonometer and their intraocular pressure was documented before and during Valsalva manoeuvre. All patients underwent complete ophthalmic examination and were excluded from the study if they had any of the factors mentioned in the exclusion criteria. Results:The difference in IOP before and during valsalva was found to be statistically significant. The range of elevation was between 2.9 to 11 mm Hg. (p-value <0.001). Increase of greater than 5 mmHg was noted in 30 eyes. Conclusion:Valsalva manoeuvre causes a significant rise in intraocular pressure but further studies are needed to evaluate the rise in IOP during valsalva as a risk factor for developing glaucoma. Keyword: Applanation Tonometer: Valsalva. Intraocular pressure. Glaucoma.

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