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All About SiHy: Silicone Hydrogel Lenses

Author: Debbi Bennett, ABOC, NCLE-AC

Debra Bennett has no relevant financial relationships to disclose. The content and format of this course is presented without commercial bias and does not claim superiority of any commercial product or service.

Course Description

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 refitted patients. The SiHy lens material provides comfort, good oxygen delivery and many other patient benefits not commonly seen in older materials.

Course Objectives

The Silicone Hydrogel (SiHy) contact lens is approved for continuous wear, daily wear, and flexible wear. This course is designed to expand the knowledge base of the eye care professional (ECP) in the manufacture, design, dispensing procedures, and patient use of this popular lens material.

Upon completing this course, the ECP will be able to:

  • Classify various polymers
  • Identify a certain polymer that may be beneficial to a specific patient need
  • Recognize drawbacks of SiHy lenses
  • Select the best SiHy style
  • Apply trouble shooting ideas
  • Summarize knowledge regarding the future of SiHy and other advanced materials

Course Assessment

There is a 40-question test at the end of the course. A successful passing score of 80% is required on all ABO-NLCE continuing education courses in order to earn the designated number of credits. You will know your grade instantly after completing the course.