NCLE Exam Questions and Correct Answers

NCLE Exam Questions and Correct Answers First person to be awarded patent for corneal lens made of PMMA - Answer-Kevin Tuohy Until 1930 all contacts where made of what material - Answer-Gelatin polycon 1 was developed by who? - Answer-Seidner the Biggest disadvantage of PMMA was its lack of what - Answer-gas permeability Which decade of the twenty first century where contacts marketed in - Answer-50s From the materials of choice for contacts was - Answer-PMMA The first company to market soft lenses in the US was - Answer-Bausch and Lomb One-day disposable soft lenses became available in - Answer-1994 The first company to make contact lenses of PMMA in the US was - Answer-obrig The company responsible for for bringing the soft lens material HEMA to the US - Answer-National Patent Development Corporation The contact lens pioneer who made improvements to lens design by inventing the topogometer to better measure the corneal topography was - Answer-Soper The person considered responsible for first realizing the concept of corneal neutralization and replacement by a lens placed in contact with the eye is - Answer-Da Vinci The FDA has been involved in approval of new contacts material since what year? - Answer-1971 Rigid Gas Permeable Lenses have been marketed in the US since which decade? - Answer-70s The Chemist who invented HEMA - Answer-Wichterle Which layer of the corneal makes up 10%of the total structures total thickness - AnswerEpithelium