This course is currently closed
You are accessing a expired 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 provides comfort, good oxygen delivery and many other patient benefits not commonly seen in older materials.