Patent ID: 8366272
Filing Date: 2013-02-05
Classification: G02C

Abstract:
1. A method of determining an appropriately shaped soft contact lens for a subject with an irregular cornea, the method comprising the steps of: (a) inferring or deducing the profile of the cornea, using information obtained from at least one analytical technique, which information allows inferences or deductions to be made regarding the corneal profile over at least a portion thereof: (b) selecting a first choice fitting lens, the selection being based on the profile of the cornea obtained in step (a), and placing the selected lens on the subject's cornea; (c) assessing the fit of the contact lens to the cornea, by investigating each of the following parameters; (d) adjusting the fitting lens, if required, according to the assessment performed in step (c) and reiterating the step (c) assessment using the adjusted fitting lens until a desired fit of lens to the cornea has been obtained; and, optionally, (e) adjusting the periphery of the lens to obtain a desired fit to the cornea at the periphery thereof.