Journal of Korean Clinical Health Science (한국임상보건과학회지)

The Korean Society of Clinical Health Science (한국임상보건과학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis on the corneal thickness and anterior chamber depth of the Keratoconus using Pentacam

  • Received : 2018.01.30
  • Accepted : 2018.02.20
  • Published : 2018.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Purpose: To investigate the corneal thickness and anterior chamber depth (ACD) of eyes with Keratoconus in the Korean population with the Pentacam. Methods: The subjects consisted of 84 eyes from Keratoconic adults aged 7-59 years during 2010. The thinnest area, apex zone, and pupil centre of the corneal thickness were measured using the Pentacam pachymetry. ACD value was also measured with Pentacam. Results: There was a statistically significant relationship between thickness of the cornea at the apex area and the pupil centre (p=0.0001). However, there was no statistical difference (p>0.5) in the mean thickness of thinnest area, apex zone, pupil centre of cornea between right eye and left eye. Also, correlation between ACD and corneal thickness in all subjects had no statistical differences (p>0.05) in all subjects. Conclusion: These results suggested that the regional thickness of cornea and ACD with Pentacam can provide correct and useful diagnostic information of the morphology of Keratoconus for the RGP contact lens and diagnosis of abnormal corneal refraction surgery.

Keywords

References

  1. Lawless M, Coster DJ, Philips AJ, Loane M. Keratoconus: diagnosis and management, Aust N Z J Ophthalmol. 1989; 17:33-60. https://doi.org/10.1111/j.1442-9071.1989.tb00487.x
  2. Rabinowitz YS, Keratoconus, Surv Ophthalmol. 1998; 42:297-319. https://doi.org/10.1016/S0039-6257(97)00119-7
  3. Edmonds CR, Wung SF, Pemberton B, Surrett S. Comparison of anterior chamber depth of normal and keratoconus eyes using Scheimpflug photography. Eye Contact lens. 2009;35(3):120-122. https://doi.org/10.1097/ICL.0b013e31819cf5a6
  4. Ernst BJ, Hsu Hy. Keratoconus association with axial myopia: a prospective biometric study. Eye Contact Lens. 2011. 37(1);2-5. https://doi.org/10.1097/ICL.0b013e3181fb2119
  5. Jinabhia A, Radhakrishana H, O'Donnell C. Corneal changes after suspending contact lens wear in early pellucid marginal corneal degeneration and moderate keratoconus. Eye Contact Lens. 2011;37(2) 99-105. https://doi.org/10.1097/ICL.0b013e31820592b1
  6. Kato N. Toda I, Kawakita T, Sakai C, Tsubota K. Topography-guided conductive keratoplasty : treatment for advanced keratoconus. Am J Ophthalmol. 2010. 150(4):481-489. https://doi.org/10.1016/j.ajo.2010.05.014
  7. Lam AK, Douthwaite WA. The corneal-thickness profile in Hong Kong Chinese. Cornea.1998;17, 384-388. https://doi.org/10.1097/00003226-199807000-00008
  8. Cosar CB, Sener AB. Orbscan corneal topography system in evaluating the anterior structures of the human eye. 2003; Cornea 22, 118-121. https://doi.org/10.1097/00003226-200303000-00007
  9. Marjanovic I, Kontic D, Hentova-sencanic P, Markovic V, Bozic M. Correlation between central corneal thickness and intraocular pressure in various age groups. Srp Arh Celok Lek. 2010; 138(5-6):279-286. https://doi.org/10.2298/SARH1006279M
  10. Liu Z, Pflugfelder SC. Corneal thickness is reduced in dry eye. Cornea.1999; 18, 403-407. https://doi.org/10.1097/00003226-199907000-00002
  11. Liu Z, Huang AJ, Pflugfelder SC. Evaluation of corneal thickness and topography in normal eyes using the Orbscan corneal system. Br J Ophthalmil. 1999; 83, 774-778. https://doi.org/10.1136/bjo.83.7.774
  12. Lee SK, Lee CH, Lee JE, Lee JS. Corneal Topography study using Orbacan II between keratoconus and keratoconus suspect. J Korean Ophthalmol Soc. 2007;48(1):1599-1606. https://doi.org/10.3341/jkos.2007.48.12.1599
  13. Choi JC,Kim MK, Lee JE. Diagnostic Criteria for Keratoconus Uning Orbscan II Slit Scanning topography pachymetry System. J Korean Ophthalmol Soc. 2004;45(6):928-935.
  14. A. Juan, LP. Antonio, A. Luis, MS. Rahhal, MS. Franciso. Anatomic study of the corneal thickness of young emmetropic subjects 2004;23(7):669-673. https://doi.org/10.1097/01.ico.0000126323.20767.89
  15. Bohnke M, Chavanne P, Gianotti R. Continuous non-contact corneal pachymetry with a high speed reflectometer. J. Refract Surg.1998;14, 140-146.
  16. Feng Y, Varikooty J, Simpson TL. Diurnal variation of corneal and corneal epithelial measured using optical coherence tomography. Cornea. 2001;20, 480-483. https://doi.org/10.1097/00003226-200107000-00008
  17. Florian R, Anke S, Christine B, Carl E. Age-related changes in central and peripheral corneal thickness-Determination of normal values with the Orbscan II topography system. Cornea. 2007;26(1), 1-5. https://doi.org/10.1097/01.ico.0000240095.95067.3f
  18. Cho P, Cheung SW. Repeatability of corneal thickness measurements made by a scanning slit topography system. Ophthalmic Physiol Opt. 2002; 22, 505-510. https://doi.org/10.1046/j.1475-1313.2002.00060.x
  19. Haque S, Simpson T, Jones L. Corneal and epithelial thickness in keratoconus : a comparison of ultrasonic pachymetry, ORBscan II, and optical coherence tomography. J Refract Surg. 2006; 22(5): 486-493.
  20. Price FW, Koller DL, Price MO. Central corneal pachymetry in patients undergoing laser in situ keratomileusis. Ophthalmology. 1999; 106, 2216-2220. https://doi.org/10.1016/S0161-6420(99)90508-0
  21. La Rosa FA, Gross RL, Orengo-Nania S. Central corneal thickness of Caucasian and African Americans in glaucomatous and nonglaucomatous populations. Arch Ophthalmol. 2001;119, 23-27.
  22. Arntz A, Duran JA, Pijoan JI. Subclinical keratoconus diagnosis by elevation topography. Arch Soc Esp Oftalmol.2003;78:659-664.
  23. Giraldez FMJ, Diaz RA, Cervino A. A Comparison of corneal of two pachymetric systems: slit-scanning and ultrasonic. CLAO J. 2002;221-223.