Abstract
Use of spherical rigid and spherical soft contact lenses prescribed in a “piggyback” modality has generally failed in the past. A new technique uses a back surface toric soft contact lens, which becomes bitoric when placed on the highly astigmatic keratoconus cornea, and a bitoric rigid gas-permeable contact lens worn in tandem. The lessening of rubbing and the good contact lens centration appear to be an improvement over the rigid contact lens alone.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Shovlin J, Morrison R, DePaolis M, Hackenbrach E. Does the Boston II contact lens correct keratoconus? Contact Lens Forum. 1983;8(7):26–29.
Morrison R. Caring for the keratoconus patient. Contact Lens Spectrum. 1988;3(2):55–58.
Morrison R, Shovlin J. A review of the use of bandage lenses. Metab Pediatr Syst Ophthalmol. 1982;6(2):17–21.
Quinn TG. Back surface toric RGPs. Contact Lens Spectrum. 1999; 14(10):15.
Kunzler J. Low modulus fluorosiloxane based hydrogels for contact lens application. American Chemical Society Symposium Series. 2000;729:296–307.
McNally J, McKenney C. A clinical look at a silicone hydrogel extended wear lens. Contact Lens Spectrum. January 2002;17(1): 38–41.
Author information
Authors and Affiliations
Additional information
The author has stated that he does not have a significant financial interest or other relationship with any product manufacturer or provider of services discussed in this article.
Rights and permissions
About this article
Cite this article
Morrison, R.J. Bitoric rigid and soft contact lenses prescribed in tandem for keratoconus: Preliminary results. Ann Ophthalmol 34, 127–129 (2002). https://doi.org/10.1007/s12009-002-0041-5
Issue Date:
DOI: https://doi.org/10.1007/s12009-002-0041-5