Discuss the molding process for manufacturing soft lenses and the reason for high production losses. Discuss the development of the spin casting process used to manufacture soft lenses and the reason for high production losses. Discuss the development of the spin casting process used to manufacture hydrogel soft lenses. Discuss the disadvantage of PMMA contact lenses which prompted development of a gas permeable material. Discuss the research efforts of Norman Gaylord in the development of gas permeable contact lens material.
Trends Discuss the trend in new materials and processes for the manufacture of contact lenses.
Describe the procedure used to operate a biomicroscope when examining the cornea. Use the biomicroscope to examine the cornea. Discuss what is observed when using the biomicroscope to perform an optic section. Use the biomicroscope to perform an optic section. Describe the biomicroscope procedure used when obtaining a parallelepiped examination.