The asphericity, curvature and tilt of the human cornea measured using a videokeratoscope

Ophthalmic and Physiological Optics

Volumn 23, Issue 2, 2003, Pages 141-150

  Douthwaite, William A ^a  

^a UNIVERSITY OF BRADFORD   (United Kingdom)

Author keywords

Apical radius; Corneal asphericity; Tilt; Videokeratoscope

Indexed keywords

ARTICLE; CONTROLLED STUDY; CORNEA; CORNEA CURVATURE; HUMAN; HUMAN TISSUE; IMAGING SYSTEM; INFORMATION PROCESSING; KERATOSCOPY; PRIORITY JOURNAL; RETINA CONE; VIDEOKERATOSCOPE; VIDEOKERATOSCOPY; ADULT; FEMALE; HISTOLOGY; INSTRUMENTATION; KERATOMETRY; MALE; METHODOLOGY; MIDDLE AGED; VIDEORECORDING;

ADULT; CORNEA; CORNEAL TOPOGRAPHY; FEMALE; HUMANS; MALE; MIDDLE AGED; VIDEO RECORDING;

EID: 0037637611     PISSN: 02755408     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1475-1313.2003.00100.x     Document Type: Article

References (30)

1. Anera, R. G., Jimenez, J. R., del Barco, L. J. and Diaz, J. A. (2002) Corneal asphericity on visual function after refractive surgery. Optik 113, 83-88.
2. Antalis, J. J., Lembach, R. G. and Carney, L. G. (1993) A comparison of the TMS-1 and the corneal analysis system for the analysis of abnormal cornea. CLAO J. 19, 58-63.
3. Applegate, R. and Howland, H. (1995) Non-invasive measurement of corneal topography. IEEE Eng. Med. Biol. 14, 30-42.
4. Bennett, A. G. (1988a) Aspherical and continuous curve contact lenses. Part one. Optom. Today 28, 11-14.
5. Bennet, A. G. (1988b) Aspherical and continuous curve contact lenses. Part three. Optom. Today 28, 238-242.
6. Carney, L. G., Mainstone, J. C. and Henderson, B. A. (1997) Corneal topography and myopia - a cross sectional study. Invest. Ophthalmol. Vis. Sci. 38, 311-320.
7. Caroline, P. J., Andre, M. P. and Norman, C. W. (1994) Corneal topography and computerised contact lens fitting modules. Int. Contact Lens Clin. 21, 185-195.
8. Dana, M. R., Viana, M. A. G., Mori, M. T., Chandler, J. W. and McMahon, T. T. (1994) Dynamic shifts in corneal topography after radial and transverse keratotomy. Ophthalmology 101, 1818-1826.
9. Douthwaite, W. A. (1991) Computerized contact lens fitting. Optom. Vis. Sci. 10, 770-775.
10. Douthwaite, W. A. (1995) EyeSys corneal topography measurement applied to calibrated ellipsoid convex surfaces. Br. J. Ophthalmol. 79, 797-801.
11. Douthwaite, W. A. (2002) Application of linear regression to videokeratoscope data for tilted surfaces. Ophthal. Physiol. Opt. 22, 46-54.
12. Douthwaite, W. A., Hough, T., Edwards, K. and Notay, H. (1999) The EyeSys video keratoscopic assessment of apical radius and p-value in the normal human cornea. Ophthal. Physiol. Opt. 19, 467-474.
13. Douthwaite, W. A. and Pardhan, S. (1998) Surface tilt measured with the EyeSys videokeratoscope: influence of corneal asymmetry. Invest Ophthalmol. Vis. Sci. 39, 1727-1735.
14. Douthwaite, W. A., Pardhan, S. and Burek, H. (1996) Extent and effect of surface tilt on the data display of the EyeSys videokeratoscope. Br. J. Ophthalmol. 80, 986-993.
15. Eghbali, F., Yeung, K. K. and Maloney, R. K. (1995) Topographic determination of corneal asphericity and its lack of effect on the refractive outcome of radial keratotomy. Am. J. Ophthalmol. 119, 233-236.
16. Guillon, M., Lydon, D. P. M. and Wilson, C. (1986) Corneal topography: a clinical model. Ophthal. Physiol. Opt. 6, 47-56.
17. Jimenez, J. R., Anera, R. G. and del Barco, L. J. (2001) Effects on visual function of approximations of the corneal ablation profile during refractive surgery. Appl. Optics 40, 2200-2205.
18. Jimenez, J. R., Anera, R. G., del Barco, L. J. and Carretero, L. (2000) Retinal image quality in myopic subjects after refractive surgery. J. Mod. Opt. 47, 1587-1598.
19. Kiely, P. M., Smith, G. and Carney, L. G. (1982) The mean shape of the human cornea. Optica Acta 29, 1027-1040.
20. Klein, S. A. and Mandell, R. B. (1995) Shape and refractive powers in corneal topography. Invest. Ophthalmol. Vis. Sci. 36, 2096-2109.
21. Lester, S. F., Harris, M. G., Keller, S. and Larsen, D. (1994) Clinical applications of corneal topography. Int. Contact Lens Clin. 21, 170-174.
22. Maeda, N. and Klyce, S. D.' (1994) Videokeratography in contact lens practice. Int. Contact Lens Clin. 21, 163-169.
23. Maeda, N., Klyce, S. D. and Smolek, M. K. (1995) Comparison of methods for detecting keratoconus using videokeratography. Arch. Ophthalmol. 113, 870-874.'
24. Mandell, R. B. and St. Helen, R. (1971) Mathematical model of the corneal contour. Br. J. Physiol. Opt. 26, 183-197.
25. Manns, F., Ho, A., Patel, J. M. and Culbertson, W. (2002) Ablation profiles for wavefront guided correction of myopia and primary spherical aberration. J. Cataract Refract. Surg. 28, 766-774.
26. McCarey, B. E., Zurawski, C. A. and O'Shea, D. S. (1992) Practical aspects of a corneal topography system. CLAO J. 18, 248-254.
27. Morrow, G. I. and Stein, R. M. (1992) Evaluation of corneal topography: past present and future trends. Can. J. Ophthalmol. 27, 213-225.
28. Rabinowitz, Y. S., Garbus, J. and McDonnell, P. J. (1990) Computer assisted corneal topography in family members of patients with keratoconus. Arch. Ophthalmol. 18, 1412-1414.
29. Smolek, M. K., Klyce, S. D. and Maeda, N. (1994) Keratoconus and contact lens-induced corneal warpage analysis using the keratomorphic diagram. Invest. Ophthalmol. Vis. Sci. 35, 4192-4204.
30. Wilson, S. E., Verity, S. M. and Conger, D. L. (1992) Accuracy and precision of the corneal analysis system and the topographic modelling system. Cornea 11, 28-35.