All About SiHy (Silicone Hydrogel Lenses)
You are accessing a expired course. Please contact support to switch the course. Silicone Hydrogel (SiHy) was introduced in 1999 as the first contact lens material approved for continuous wear. It is also a popular daily wear lens; plus, SiHy is the material of choice for new wearers and re-fitted patients. The SiHy lens material … Continued
