Tag Klaus Ehrmann

Introduction In contrast to soft lenses (see Chapter 7), rigid contact lenses are individually fitted and then lathe cut to meet particular optical, geometrical and material specifications. Although the manufacturing precision has improved significantly over the years, in particular with…

Introduction The vast majority of soft contact lenses are today mass produced by a double-sided moulding process (see Chapter 5 ). Using such a method of manufacture ensures relatively consistent quality, eliminating the need to measure every lens that comes…