A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An optical feature is also located on a patient's eye. Then, a reference position is located on the surface...http://www.google.se/patents/US5528321?utm_source=gb-gplus-sharePatent US5528321 - Method of manufacturing contact lenses
