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The Association of Central corneal thickness with Intra-ocular Pressure and Refractive Error in a Nigerian Population

Iyamu, Eghosasere and Memeh, Misan (2008) The Association of Central corneal thickness with Intra-ocular Pressure and Refractive Error in a Nigerian Population. [Journal (On-line/Unpaginated)]

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Abstract

The purpose of this study was to determine the variation of central corneal thickness (CCT) with intraocular pressure (IOP) and spherical equivalent refractive error. A total of thirty-nine (N=39) subjects within 20-75 years with mean age 45.2 ± 15.4 years were used for this study. The central corneal thickness was assessed with the Corneo-Gage plus ultrasonic Pachymeter, the IOP with slit-lamp mounted Goldmann applanation tonometer and refractive status by Protec 2000 autorefractor, phoropter and trial lens set. Results obtained showed that there was no linear correlation between CCT and spherical equivalent errors, although the association between them was significant (p<0.05). The linear correlation between CCT and IOP was not statistically significant. The central corneal thickness was weakly correlated with age; with increasing age the central corneal thickness decreases. Neither the central corneal thickness nor the intraocular pressure was affected by gender.

Item Type:Journal (On-line/Unpaginated)
Keywords:Central corneal thickness, Intraocular pressure, Spherical equivalent refractive error, Mean spherical equivalent myopia, Mean spherical equivalent hyperopia
Subjects:JOURNALS > Online Journal of Health and Allied Sciences
ID Code:5928
Deposited By:Kakkilaya Bevinje, Dr. Srinivas
Deposited On:25 Feb 2008 22:44
Last Modified:11 Mar 2011 08:57

References in Article

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1. Troost R, Vogel A, Beck S, Schwenn O, Grus F, Pfeiffer N. Comparison of two Intraocular pressure measurement methods: Smartens® and goldmann’s tonometry. Graefes Arch Clin Exp Ophthalmol 2001;239:889-892.

2. Kotecha A. Central corneal thickness and IOP: Novel measuring methods. Instrument Insight 2005;22-23.

3. Grisson H, Smith ME, Netland PA. Current management of ocular hypertension. Comp Ophthalmol update 2004;5(2):79-88.

4. Doughty MJ, Zaman ML. Human corneal thickness and its impact on intraocular pressure and central thickness. Ophthalmology 1998;105:1849-1854.

5. Phllips LT. Why Pachymetry? Review Optom 2003;48-52.

6. Whitacre MM, Stein R. Sources of error with use of Goldmann-type tonometers. Surv Ophthalmol 1993;38:1-30.

7. Ehlers N, Bramsen T, Sperling S. Applanation tonometry and central thickness. Acta Ophthalmol (Copenh) 1975;53:34-43.

8. Bhan A, Browning AC, Shah S, Hamilton R, Dave D, Dua HS. Effect of corneal thickness on intraocular pressure measurements with the pneumotonometer, Goldmann applanation tonometer, and Tono-pen. Invest Ophthalmol Vis Sci 2002;43:1389-1392.

9. Whitacre MM, Stein RA, Hassanein K. The effect of corneal thickness on Applanation tonometry. Am J Ophthalmol 1993;115:592-596.

10. Argus WA. Ocular hypertension and central corneal thickness. Ophthalmology. 1995;102:1810-1812.

11. Wolfs RC, Klaver CC, Vingerling JR, Grobbee DE, Hofman A, dejong PT. Distribution of central corneal thickness and its association with intraocular pressure. The Rotterdam Eye study. Am J Ophthamol 1997;123:767-772.

12. Stodtmeisser R. Applanation tonometry and correction according to corneal thickness. Acta Ophthalmol Scand 1998;76:319-324.

13. Kaufmann C, Thiel MA, Seiler T. Pressure measurements after Laser in situ keratomileusis: A comparison between Goldmann applanation tonometry and Dynamic contour tonometry. SOG Switzerland 2002.

14. Bransem T, Ehlers N, Sperlings S. Applanation tonometry and central corneal thickness. Acta ophthalmol 1975;52:740-746.

15. Tonnu PA, Ho T, Elskeikh K, White E, Bunce C, garway-Heath D. The influence of central corneal thickness and age on intraocular pressure measured by pneumotonometry, non-contact tonometry, the Tono-pen XL and Goldmann applanation tonometry. Br J Ophthalmol 2005;89:851-854.

16. Mederos FA, Sample PA, Weinret RN. Corneal thickness and frequency doubling technology, perimetry abnormalities in ocular hypertensive eyes. Ophthalomology 2003;110:1903-1908.

17. Gordon MO, Beiser JA, Brandt JD, Heuer DK, Higginbothane EJ, Johnson CA,et al. The Ocular Hypertension Treatment Study; Baseline factors that predict the onset of primary open-angle glaucoma. Arch ophthalmol 2002;120(96):714-720.

18. Nemesure B, Wu SY, Hennis A et al. Corneal thickness and intraocular pressure in the Barbados Eye studies. Arch Ophthalmol 2003;1211:240-244.

19. Lene P, Jesper H, Neils E. Central corneal thickness in high myopia. Acta Ophthalmologica Scand 2005;83(5):539-541.

20. Duch S, Serra A, Castanera J, Abos R, Quintana M. Tonometry after laser in situ keratomileusis treatment. J Glaucoma 2001; 10: 261-265.

21. Hidek N, Fujiko A, Naokina N, Hiroshi S, Yozo M. The Relation ship between intraocular pressure and refractive errors adjusting for age, and central corneal thickness. Ophthal Physiol Opt 2004;24(1):41-45.

22. Daubs JG, Crick RP. Effect of refractive errors on the risk of ocular hypertension and open-angle glaucoma. Trans Ophthalmol Soc UK 1981;101(1):121-126.

23. Harpers CL, Boulton ME, Bennett D, Marcyniuk B, Jarvis-Evans JH, Tullo AB, Ridgeway AE. Diurnal variations in human corneal thickness. Br J Ophthalmol 1996;80:1068-1072.

24. Shah S, Spedding C, Bhojwani R, Kwatz J, Henson D, Mcleod D. Assessment of the diurnal variation in central corneal thickness and intraocular pressure for patients with suspected glaucoma. Ophthalomology 2000;107:1191-1193.

25. Hoffmann EM, Grus FH, Pfeiffer N. Intraocular pressure and ocular pulse amplitude using dynamic contour tonometry and contact lens tonometry. BMC Ophthalmol 2004;4:4.

26. Fraser S, Manvikar S. Glaucoma: The pathophysiology of and diagnosis. Hosp Pharmacist 2005;12:251-254.

27. Perkins ES, Phelps CP. Open-angle glaucoma, ocular hypertension, low-tension glaucoma and refraction. Arch Ophthalmol 1982:100:1464-1467.

28. Valiki R, Choudhri SA, Tauber S, Shields MBJ. Effect of mild to moderate myopic correction by laser assisted keratomileusis on the intraocular pressure measurements with Goldmann applanation tonometer, Tono-pen and pneumotonometer. Glaucoma 2001;11:493-496.

29. Lee AJ, Saw SM, Gazzard G, Cheng A, Tan DT. Intraocular pressure associations with refractive error and axial length in children. Br J Ophthalmol 2004;88(1):5-7.

30. Lleo A, Marcos A, Calafayud M, Alonso L, Rahhal SM, Sanchis-Gimeno JA. The relationship between central corneal thickness and Goldmann applanation tonometry. Clin Exp Optom 2003;86(2):104-108.

31. Wong TY, Knudston M, Lee KE. Refractive errors, intraocular pressure and glaucoma in a white population. Ophthalmol 2003;110(1):211-217.

32. Price FW, koller DL, Price MO. Central corneal pachymetry in patients undergoing laser in situ keratomileusis. Ophthalmology 1999;106:2216-2220

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