Inclusion Criteria:  o Wear rigid lenses and complain about their lenses (discomfort, loss, poor vision) or  Wear rigid lenses and have objective intolerances (damage to surfaces related to rigid lenses) or Are new wearers of lenses and presenting a strong ametropia (Strong myopia from -5.00 to -30.00d, strong hyperopia from + 4.50d to + 30.00d, strong astigmatism from 2.50d to 12.00d), with or without presbyopia (Addition of 0.75d to 3.50d) Any patient diagnosed with Keratoconus stages 1 to 3. Be affiliated to the social security system  Exclusion Criteria:  Patient with contraindications to wearing contact lenses Pregnant or breastfeeding woman Any minor or over 80 years old Any infection, inflammation or abnormality of the anterior segments Progressive ocular disorder of the anterior segments for which the wearing of contact lenses would be discouraged; Use of systemic or ocular treatment products for which the wearing of contact lenses would be discouraged; History of any herpetic keratitis; History of any refractive surgery or any irregular cornea (except in cases where the contact lenses examined may be worn by a subject with an irregular cornea, suffering from keratoconus or having undergone refractive surgery); Slit lamp observations of greater than grade 1 gravity; Vascularization of the cornea with a penetration greater than 1 mm; Case of pathological dry eye; When a subject has participated in a clinical trial on contact lenses or contact lens care products within the past 30 days.