VARIATIONS IN INTRA OCULAR PRESSURE PRE VERSUS POST DILATATION AND ITS SIGNIFICANCE – A COMPARATIVE STUDY.

Author:

Rao A. Venkateswara1,Yeluguri Suvarna2,Keerthi M. S. S.3

Affiliation:

1. Professor, Department of Ophthalmology Alluri Sitarama Raju Academy of Medical Sciences Eluru 534005, West Godavari District Andhra Pradesh, India

2. Junior Resident, Department of Ophthalmology Alluri Sitarama Raju Academy of Medical Sciences Eluru-534005, West Godavari District Andhra Pradesh, India

3. Associate Professor, Department of Ophthalmology Alluri Sitarama Raju Academy of Medical Sciences Eluru 534005, West Godavari District Andhra Pradesh, India.

Abstract

PURPOSE: To evaluate changes in intraocular pressure in healthy eyes dilated with tropicamide 1% and phenylephrine 2.5% (itrop) versus those dilated with tropicamide 1% alone (appamide) using non-contact tonometer (NCT) MATERIALS AND METHODS: A prospective comparative study was conducted on 110 eyes and grouped into Group A & Group B with 55 eyes in each group respectively. Patients less than 40 years without any ocular or systemic illness were included in the study. In both groups baseline IOPwas recorded and one drop of combined phenylephrine 2.5% and Tropicamide 1% in Group Aand one drop of plain Tropicamide 1% in Group B were instilled, after 45 minutes IOPwas recorded. Data analysis was done using paired t test RESULTS: The mean IOP for Group A was 14.41mmHg at baseline and 15.25mmHg after dilation (P=0.0025).The mean IOP for Group B was 14.36mmHg at baseline and 14.35mmHg after dilation (P=0.0018). CONCLUSION: A signicant increase in IOP is observed in both groups,but the increase is more signicant in Group A(combined tropicamide 1% and phenylaphrine 2.5%) when compared to Group B ( Tropicamide 1% alone

Publisher

World Wide Journals

Reference24 articles.

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3. American Academy of Ophthalmology (2007-2008) Intraocular pressure and aqueous humour dynamics. In: Basic and clinical science course. Glaucoma, American Academy of ophthalmology, San Francisco, USA, Pg no: 17-25.

4. Bakke EF, Hisdal J, Sembo SO (2009) Intraocular pressure increases in parallel with systemic blood pressure during isometric exercise. Invest Ophthalmol Vis Sci 50: 760-764

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