PGCFA Knowledgebase

Keratometry for silicone lenses

Article ID: 37
Last updated: 29 Aug, 2017
Article ID: 37
Last updated: 29 Aug, 2017
Revision: 1
Views: 17
Question

My 1 yr old son wears silsoft +29 contacts due to bilateral cataract for the last year. They are now floating off of the center of his eye. My question is when Contacts are normally fitted is it customary for the PO to  use a handheld karotometer for cornea measurements to help determine the steepness and size of the contact and prescription?

Answer

One of the wonderful things about silicone lenses is that keratometry is not needed. The fit is judged in other ways (usually be a drop of dye on the eye). Some movement off the cornea is normal and often not a concern.

Alex V. Levin, MD, MHSc, FRCSC
Chief, Pediatric Ophthalmology and Ocular Genetics
Robison D. Harley, MD Endowed Chair in Pediatric Ophthalmology and Ocular Genetics
Wills Eye Hospital, Ste. 1210
840 Walnut Street                    
Philadelphia, PA 19107-5109

Chair, Scientific Advisory Board
Pediatric Glaucoma and Cataract Family Association
 

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This article was:  
Article ID: 37
Last updated: 29 Aug, 2017
Revision: 1
Views: 17