Comparative Analysis of Intraocular Pressure Measurements using Perkins Tonometer and Non-contact Tonometer in a Rural Tertiary Care Hospital in Northern Maharashtra, India
Article Sidebar
Main Article Content
Abstract
Purpose: Measurement of IOP is one of the basic investigations in a general ophthalmic workup. To compare intraocular pressure measurements, taken by using Perkins applanation tonometer (PAT) and non-contact tonometer. Perkins’s tonometer is a portable form of GAT (Goldman applanation tonometer), which is gold standard applanation tonometer. It is easy to handle, used in children, and bed ridden patients. Non-contact tonometer doesn’t require anaesthesia. It is non-invasive and easy to handle .and used in mass screening.
Methods: An Analytical study in which IOP was measured in patients using the two tonometers. All patients attending ophthalmic OPD will be going for a detailed ophthalmic examination of both eyes.
Results: The study population included 35 patients and 70 eyes. There is statically significant difference seen for the values between the tonometers. There was no significant difference seen for the IOP values between right eye and left eye and also there is no statically significant difference in between male and female.
Conclusion: In this study, 70 eyes in a tertiary care center had their IOP tested using a Perkins tonometer and a non-contact tonometer for both sexes. The results were compared. As our institution is an educational, we had equal access to both tonometers. Perkins is a more accurate tonometer than a non-contact tonometer since it is portable and simple to use as a bedside approach. A statistically significant difference was observed in the IOP measurement when utilizing a non-contact tonometer and a Perkins tonometer.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
References
Quyang PB, Li CY, Zhu XH, Duan XC. Assessment of intraocular pressure measured by Reichert ocular response analyzer, Goldmann applanation tonometry, and dynamic contour tonometry in healthy individuals. Int J Ophthalmol. 2012;5:102-107.
Medeiros FA, Alencar LM, Sample PA, Zangwill LM, Susanna Jr R, Weinreb RN. The relationship between intraocular pressure reduction and rates of progressive visual field loss in eyes with optic disc hemorrhage. Ophthalmology. 2010;117:2061-2067.
Chui WS, Lam A, Chen D, Chiu R. The influence of corneal properties on rebound tonometry. Ophthalmology. 2008;115:80-84.
Vernon SA. Non-contact tonometry in the postoperative eye. Br J Ophthalmol. 1989;73(4):247-249.
Wallace J, et al. Perkins hand-held applanation tonometer. A clinical evaluation. Br J Ophthalmol. 1968;52(7):568-572.
Prabhakar SK, Mahesh BS. A comparative study of intraocular pressure measurement by three tonometers in normal subjects. [Conference proceedings].
Shanthamallappa MJSS. Medical College & Hospital MG Road, Mysore-570004, Karnataka, India. [Dissertation/Thesis].
Okonkwo ON, Tripathy K. Ocular Hypotony. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: NCBI Bookshelf.
Sinha DK, Shewta B Karanvi. Comparative evaluation of Goldman applanation tonometer, Perkins tonometer, and Non-contact tonometer in a tertiary care hospital. IP Int J Ocular Oncol Oculoplasty. 2022;1:41-45.
Nagarjun S, Veerabahu V, Ezhumalai G. Comparative evaluation of applanation and indentation tonometer in a community ophthalmology setting in southern India. Saudi J Ophthalmol. 2016;30:83-87.
Ramakrishnan R, Agrawal M, Kalapad S, Shrivastava S. A study comparing IOP using Perkins and Schiotz tonometer with respect to Goldmann applanation tonometer as a gold standard in a tertiary health care center, Navi Mumbai. Indian J Clin Exp Ophthalmol. 2021;3:541-547.
Arora R, Bellamy H, Austin M. Applanation tonometry: a comparison of the Perkins handheld and Goldmann slit lamp-mounted methods. Clin Ophthalmol. 2014;8:605-10. doi: 10.2147/OPTH.S53544. PMID: 24707165; PMCID: PMC3971938.