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Revista Mexicana de Oftalmología

Anales de la Sociedad Mexicana de Oftalmología y Archivos de la Asociación Para Evitar la Ceguera en México
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2003, Number 2

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Rev Mex Oftalmol 2003; 77 (2)

Seguimiento del queratocono mediante topografía de elevación

Aguirre-González AF, Baca-Lozada O, Velasco-Ramos R
Full text How to cite this article

Language: Spanish
References: 11
Page: 57-63
PDF size: 615.73 Kb.


Key words:

Keratoconus, elevation topography.

ABSTRACT

Purpose: To determine if the different patterns presented by elevation topography are able to change across the time in patients with keratoconus.
Methods: This is a prospective and longitudinal study in which we took two elevation topography maps and compared them with the elevation topographic patterns according to the classification of our equipment.
Results: We reviewed 40 eyes of 21 patients with keratoconus and we found progression in 12 eyes, the mean age was 29 ± 6 years and in the eyes without progression was 31 ± 14 years, the mean apex in eyes with pattern progression was 27.125 µ and in those eyes without pattern progression was 30.04 µ and the mean time between the 2 maps was 12.75 months and in the eyes without progression was 10.07 months.
Conclusions: The different topographic patterns presented by our equipment progressed across the time and that progression is not synonymous to apex elevation, for this reason we consider that this classification is a new way to evaluate evolution in keratoconus.


REFERENCES

  1. Demirbas, N.; Plugfelder S.: Topographic Pattern and apex Location of Keratoconus on Elevation Topography Maps. Cornea, 1998; 17:476-484.

  2. Barr; Schechtman, K.; Fink, B.; Pierce, G.; Pensyl, D.; Zadnik, K.; Gordon M.; CLEK study group.: Corneal Scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: Baseline Prevalence and Repeatability of Detection. Cornea, 1999; 18:34-46.

  3. Michael, K.; Smolek; Klyce, SD.: Current Keratoconus Detection Methods Compared With a Neural Network Approach. Invest Ophthalmol Vis Sci, 1997; 38:2290-2299.

  4. Albertose, R.; Centurio, V.: La moderna Cirugía Refractiva. Buenos Aires, Informet. Libros de Oftalmología, 1999.

  5. American Academy of Ophthalmology. Corneal Topography. Ophthalmology, 1999; 106:1628-1638.

  6. Robin, J.: Corneal Topography. Corneal Currents, 2(3).

  7. Francesco, C.: Corneal Topography. Corneal Currents, 2(3).

  8. Edrington, T.; Szczotka, L.; Begley, C.; Burger, D.; Wilson, B.; Barr, J.: Repeatabilily and agreement of Two Corneal Curvature Assessments in Keratoconus: Keratometry and the first Definite Apical Clearance Lens (FDACL). Cornea, 1998; 17:267-277.

  9. Naufal, S.; Hess, J.; Friendlander, M.; Granet, N.: Rasterstereography- based classification of normal corneas. J Cataract Refract Surg, 1997; 23:222-230.

  10. Aguirre, F.; Baca, O.; Velasco, R.: Elevation Topography System in Keratoconus. Ins Ophthal Vis Sci, 2001; 42:S894.

  11. Grayson, M.: Enfermedades de la Córnea. Mosby , 1992.




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Rev Mex Oftalmol. 2003;77