medigraphic.com
ISSN 1561-3070 (Electronic)

2014, Number 1

<< Back Next >>

Rev Cub Oftal 2014; 27 (1)

Postsurgical photoablative corneal power in myopic patients by using Scheimpflug Pentacam system vs. Maloney method

Cárdenas DT, Ravelo VW, Capote CA, Pérez CEC, Cuan AY, Hernández LI

Language: Spanish
References: 37
Page: 51-61
PDF size: 79.94 Kb.


ABSTRACT

Objective: to compare the keratometries taken by Pentacam system in miopic patients operated on with excimer laser refractive surgery and those of Maloney method in the "Ramón Pando Ferrer" Cuban Institute of Ophthalmology from January to March of 2013.
Methods: aprospective study was conducted in 50 eyes from 26 patients operated on with excimer laser. The average keratometry was estimated by Maloney´s method and then compared with the values provided by the Pentacam system in terms of total central keratometric value and equivalent K-reading power of color maps, as well as true net power (total keratometric value at 3,0 mm) and equivalent keratometric readings at different diameters of Holladay Report program. Preoperative average keratometries in the medical history were compared with those estimated by Pentacam. Paired t test and 95 % significance level were used for the statistical analysis.
Results: there were no significant statistical differences among the keratometries taken by Maloney method, the equivalent K-reading power and the equivalent keratometric readings at different diameters, being that of 3 mm the more accurate. The rest of the measurements differed in a significant way. There were no differences among the preoperative keratometries.
Conclusion: Pentacam equipment provides corneal powers that did not statistically differ from the ones obtained by Maloney method in myopic eyes with previous excimer laser surgery.


REFERENCES

  1. Savini G, Barboni P, Zanini M. Correlation between attempted correction and keratometric refractive index of the cornea after myopic excimer laser surgery. J Refract Surg. 2007;23(5):461-6.

  2. Kawamorita T, Uozato H, Kamiya K, Leon Bax, Tsutsui K, Aizawa D, et al. Repeatability, reproducibility, and agreement characteristics of rotating Scheimpflug photography and scanning-slit corneal topography for corneal power measurement. J Cataract Refract Surg. 2009;35(1):127-33.

  3. Seitz B, Langenbucher A. Intraocular lens power calculation in eyes after corneal refractive surgery. J Refract Surg. 2000;16(3):349-61.

  4. Martín C. Cálculo de lente intraocular poscirugía refractiva con fórmula Haigis L. Buenos Aires: Arch Oftal [Internet]. 2009 [citado 20 de diciembre de 2013];80(4). Disponible en: http://www.sao.org.ar/N%C3%BAmerosAnteriores/Volumen80_04/80_04_03/tabid/4 36/language/es-AR/Default.aspx

  5. Mesa JC, Amías V, Cabiró I, Cotanda P, Porta J, Solanas L. Algoritmo de corrección de la queratometría tras cirugía refractiva corneal. Annals d'Oftalmología. 2009;17(3):137-43.

  6. Mesa JC, Ruiz C. El cálculo de la lente intraocular tras cirugía foto-refractiva corneal. Revisión de la literatura. Arch Soc Esp Oftalmol. 2009;84(6):283-92.

  7. Pérez EC. Cálculo de la lente intraocular en la cirugía de catarata. En: Rios M, Capote A, Hernández JR, Eguía F, Padilla CM. Criterios y tendencias actuales. La Habana: Ciencias Médicas; 2009. p. 232-7.

  8. Pérez EC, Cuan Y, Cárdenas T, Méndez AM, Rodríguez B. Aplicación del método de Maloney en el cálculo del lente intraocular después de cirugía refractiva corneal. Rev Cubana Oftalmol. 2010;23 Supl 1:470-9.

  9. Mesa J, Rouras A, Cabiró I, Amías V, Porta J, Solanas L. Intraocular lens power calculation after myopic excímer laser surgery with no previous data. J Emmetropia. 2011;2(2):97-102.

  10. Savini G, Barboni P, Zanini M. Intraocular lens power calculation after myopic refractive surgery: theoretical comparison of different methods. Ophthalmology. 2006;113(8):127-182.

  11. Savini G, Hoffer KJ, Zanini M. IOL Power Calculations after LASIK and PRK. Cataract & efractive surgery today Europe [Internet]. 2007 [citado 12 de diciembre de 2012]. Disponible en: http://www.bmctoday.net/crstodayeurope/2007/04/article.asp?f=0407_09.php

  12. Mesa JC, Marti T, Arruga J. Cálculo del poder dióptrico de la lente intraocular (LIO) tras cirugía refractiva. Arch Soc Esp Oftalmol. 2005;80(12):699-703.

  13. Arce CG, Soriano ES, Weisenthal RW, Hamilton SM, Rocha KM, et al. Calculation of Intraocular Lens Power Using Orbscan II quantitative area topography after corneal refractive surgery. J Refract Surg. 2009;25(12):1061-74.

  14. DeMill D, Hsu M, Moshirfar M. Surgery intraocular lens calculator for eyes with prior radial keratotomy. Clin Ophthalmol. 2011;5:124-37.

  15. Ortega JG, Freidell H, Kwitko S, Lu LW, Zacharias W, Sánchez JC. Cuál es la técnica de elección para el cálculo del LIO poscirugía refractiva. Noticiero ALACCSAR/ Diciembre 2011 [citado enero 2013]. Disponible en: http://www.alaccsa-r.com

  16. Srivannaboon S, Rakpanichmanee T, Cheng AC, Fam HB. Estimation of posterior corneal power for IOL calculation after myopic LASIK. J Refract Surg. 2008;24(9):946-51.

  17. Holladay JT, Hill WE, Steinmueller A. Corneal power measurements using Scheimpflug imaging in eyes with prior corneal refractive surgery. J Cataract Refract Surg. 2009;25(10):862-8.

  18. Pakoslawski F, Ghilino O, Marotta H, Estavillo M, Argibay MC. Cálculo de lente intraocular luego de cirugía refractiva miópica: nuestro método. Resultados preliminares. Buenos Aires: Arch Oftal. 2009,80(3):91-4.

  19. Shammas HJ, Hoffer KJ, Shammas MC. Scheimpflug photography keratometry readings for routine intraocular lens power calculation. J Cataract Refract Surg. 2009;35(2):330-4.

  20. Jain R, Dilraj G, Grewal SPS. Repeatability of corneal parameters with Pentacam after laser in situ keratomileusis. Indian J Ophthalmol. 2007;55(5):341-7.

  21. Morcillo R, Muñoz F, Durán S. La cámara Scheimpflug rotacional Pentacam. Actualizaciones Tecnológicas en Oftalmología. Estudio Oftalmológico [Internet]. 2006 [citado noviembre 2012];24(4). Disponible en: http://www.oftalmo.com/studium/studium2006/stud06-4/06d-indice

  22. Cuan Y, Pérez E, Montero E, Santiesteban I, Ortega L, Cárdenas T. Utilidad del Pentacam para medir el poder corneal después de cirugía refractiva con excímer láser. Rev Cubana Oftalmol. 2010;23(Sup. 1):513-21.

  23. Savini G, Barboni P, Profazio V, Zanini M, Hoffer KJ. Corneal power measurements with the Pentacam Scheimpflug camera after myopic excimer laser surgery. J Cataract Refract Surg. 2008;34(5):809-13.

  24. Mohammad AJ, Sepehr F, Parviz M. Intraocular Lens Power Calculation after Corneal Refractive Surgery. J Ophthalmic Vis Res. 2012;7(1):106.

  25. Cabrera A, Cabrera JA, Tirado OM. Resultados refractivos en pacientes operados por LASIK versus LASEK con mitomicina C. Rev Cubana Oftalmol [Internet]. 2009;22(1). Disponible en: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0864-21762009000100003

  26. Hurtado E. Cirugía refractiva láser corneal LASIK vs PRK en miopía baja, media y elevada. España: Universidad de Alicante [Internet]. 2011. [citado 20 junio 2013]. Disponible en: http://hdl.handle.net/10045/19816

  27. Randleman JB, Foster JB. Intraocular lens power calculations after refractive surgery: Consensus-K technique. J Cataract Refract Surg. 2007;33(11):1892-8.

  28. Urrutia IP, Matiz H, Morales ME. Resultados refractivos en pacientes operados de catarata con antecedente de cirugía refractiva corneal. Rev Mex Oftalmol. 2006;80(6):312-7.

  29. Feiz V, Mannis MJ, Garcia-Ferrer F, Kandavel G. Intraocular Lens Power Calculation After Laser In Situ Keratomileusis for Myopia and Hyperopia. A Standardized Approach. Cornea. 2001;20(8):792-7.

  30. Argento C, Cosentino M, Badoza D. Intraocular lens power calculation after refractive surgery. J Cataract Refract Surg. 2003;29(7):1346-51.

  31. Shammas HJ, Shammas MC. No-history method of intraocular lens power calculation for cataract surgery after myopic laser in situ keratomileusis. J Cataract Refract Surg. 2007;33(1):31-6.

  32. Latkany AR, Chokshi AR, Speaker MG. Intraocular lens calculations after refractive surgery. J Cataract Refract Surg. 2005;31(3):562-70.

  33. Wang L, Booth MA, Koch DD. Comparison of intraocular lens power calculation methods in eyes that have undergone LASIK. Ophthalmology. 2004;111(10):1825-31.

  34. Rao SK, Cheng A, Lam DS. IOL Power Calculation after Corneal Refractive Surgery. In: Garg A, et al. Mastering the Techniques of IOL Power Calculations. New Delhi: Jaipee Brothers. 2009;30:205-12.

  35. Cárdenas T, Torres R, Corcho Y, Capote A, Cuan Y, Hernández I. Sistema Scheimpflug Pentacam vs. método de la historia clínica en hipermétropes con cirugía refractiva previa. Rev Cubana Oftalmol [Internet]. 2013 [citado junio 2013];26(1). Disponible en: http://www.revoftalmologia.sld.cu/index.php/oftalmologia/article/view/173

  36. Viteri E. Uso del Pentacam para calcular el poder del LIO. High Lights Ohthalmol [Internet]. 2008 [citado junio 2013];36(3). Disponible en: http://www.omnisrl.com.ar/descargas/uso_del_pentacam_por_calcular_el_poder_del _lio_viteri_spanish.pdf

  37. Kim SW, Kim EK, Cho BJ, Kim SW, Song KY, Kim TI. Use of the pentacam true net corneal power for intraocular lens calculation in eyes after refractive corneal surgery. J Refract Surg. 2009;25(3):285-9.




2020     |     www.medigraphic.com