Luiz Formentin has completed his graduation in Medicine from the University Lusíada Foundation (1983) and obtained the title of specialist by the Brazilian Council of Ophthalmology in 1994. Currently, he is working as an Ophthalmologist at Eye Clinic (Santos -SP), Ophthalmologist/Director of the Therapy Center and Diagnostic Ophthalmological (Santos -SP), Ophthalmology Service Head of the Holy Hospital Amaro (Guaruja -SP), Assistant at contact lens industry and refraction of the Institute of Vision/UNIFESP, President of the ethics committee of the Hospital Santo Amaro (Guaruja -SP) and former Chairman of the Ophthalmology department of APM Santos.



The fitting of RGP contact lenses provides a gain in visual acuity of the patient that presents irregularities in the cornea, but these irregularities such as a fingerprint are different for each individual, so standard box cannot solve all cases. The purpose of the presentation is to show some changes from the test lens results for the patient. For example, setting the refractive index for back surface toric lenses or adjust the specific weight for centralization and other issues.