Patent attributes
Disclosed is a method of determining an appropriately shaped soft contact lens for a subject with an irregular cornea, the method comprising the steps of: inferring or deducing the profile of the cornea over at least a portion thereof: selecting a first choice fitting lens, the selection being based on the profile of the cornea obtained in the preceding step; assessing the fit of the contact lens to the cornea, by investigating each of the following parameters; (i) translational movement of the lens on eye; (ii) rotation of the lens on eye; (iii) centration of the lens on eye; (iv) the perceived comfort of the lens for the subject; (v) the visual acuity of the subject when wearing the lens; and adjusting the choice of fitting lens, if required, according to the assessment and reiterating until a desired fit of lens to the cornea has been obtained.
