To Evaluate the Difference in Mean CCT among POAG and Ocular Hypertension: A Hospital Based Study
DOI:
https://doi.org/10.21276/dzphtj61Keywords:
CCT, IOP, Primary open angle glaucoma, Ocular hypertensionAbstract
Background: Measurement of the accurate IOP is important not only for classification, but for the clinical management of the glaucoma patients. The aim of this study to determine the difference in mean CCT among POAG and Ocular Hypertension. Materials & Methods: A hospital based comparative type of observational study done on 120 eyes of 60 patients was conducted under Department of Ophthalmology, Government D.B. Hospital, Churu, Rajasthan. To be safe and accurate, following factors should be checked before making a glaucoma diagnosis. The preliminary eye examination included the visual acquity and slit lamp biomicroscopy of the anterior segment, to rule out any corneal pathology and refraction. The intraocular pressure was recorded by using Goldmann Applanation Tonometry (GAT). Results: Our study showed that the most of the study subjects in POAG group (46.6%) were in >50 years age group, while most of the subjects in OH group (46.6%) were in 41-50 years age group and there were 19 (63.3%) male in POAG group while in OH group there were 23 (76.7%) males. The mean CCT in right eye & left eye was higher in OH group (568.4 & 562.2 respectively) as compared to POAG group (507.8 & 504.2 respectively) and this difference was found to statistically significantly on application of unpaired t test (P<0.001& P<0.001 respectively) and IOP was also statistically significant(P<0.001) in both eyes. Conclusion: We concluded that the measurement of the central corneal thickness aid the ophthalmologist in making a correct diagnosis and in a better management of glaucoma and the glaucoma suspects, especially when their corneal thickness differs markedly from the normal thickness. AQ
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References
Quigley HA. Number of people with glaucoma worldwide. Br J Ophthalmol. 1996; 80(5):389-393.
Thylefors B, Negrel AD, Pararajasegaram R, et al. Global data on blindness. Bull World Health Organ. 1995; 73(1):115-121.
Friedman DS, Wolfs RC, O'Colmain BJ, et al. Prevalence of open-angle glaucoma among adults in the United States. Arch Ophthalmol. 2004; 122(4): 532-538.
Anupama C. Shetgar, Mariyappa B. Mulimani. The Central Corneal Thickness in Normal Tension Glaucoma, Primary Open Angle Glaucoma and Ocular Hypertension. Journal of Clinical and Diagnostic Research. 2013 June; Vol-7(6): 1063-1067.
Kolker AE, Becker B. ‘Ocular hypertension’ vs. open-angle glaucoma: a different view. Arch Ophthalmol. 1977; 95(4):586-587.
Phelps CD. Ocular hypertension: to treat or not to treat. Arch Ophthalmol 1977; 95(4):588-589.
Chandler PA, Grant WM. ‘Ocular hypertension’ vs. open-angle glaucoma. Arch Ophthalmol. 1977; 95(4):585-586.
Sommer A, Tielsch JM, Katz J, Quigley HA, Gottsch JD, Javitt J, Singh K. Relationship between intraocular pressure and primary open angle glaucoma among white and black Americans. The Baltimore Eye Survey.Arch Ophthalmol. 1991 Aug; 109(8):1090-5.
Shiose Y. The aging effect on intraocular pressure in an apparently normal population. Arch Ophthalmol. 1984; 102(6):883-887.
Klein BE, Klein R, Linton KL. Intraocular pressure in an American community. The Beaver Dam Eye Study. Invest Ophthalmol Vis Sci. 1992; 33(7):2224-2228.
Friedman DS, Wilson MR, Liebmann JM, et al. An evidence-based assessment of risk factors for the progression of ocular hypertension and glaucoma. Am J Ophthalmol. 2004; 138(3 suppl):S19-S31.
Ehlers N Hansen, FK Aasved H Biometric correlations of corneal thickness. ActaOphthalmol (Copenh). 1975;53652- 659.
Stodtmeister Applanation tonometry and correction according to corneal thickness. Acta Ophthalmol Scand. 1998;76319- 324.
Herndon LW, Choudhri SA, Cox T, Damji KF, Shields MB, Allingham RR. Central corneal thickness in normal, glaucomatous, and ocular hypertensive eyes. Arch Ophthalmol. 1997 Sep; 115(9):1137-41.
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