Identify various lens types, materials, and treatments.

Identification should include

• differentiating between single vision, multifocal, aphakic, low vision, and occupational lens types
• differentiating between commonly used ophthalmic lens materials
• identifying commonly used lens treatments and their applications (e.g., anti-reflective, anti-scratch, polarization, photochromic, ultra-violet, blue light protection)
• determining appropriate choice of multifocal types
• determining total reading power
• determining intermediate power.

Process/Skill Questions:

• What are the advantages and disadvantages of each type?
• What are the uses of each type of lens?
• What lens treatment is best for assisting with night driving?