What Is Presbyopia?
21:45
How They're Made (Lenses and Coatings): Inside The Optical Lab
10:56
Common Refractive Errors Of The Human Eye
10:13
How Opticians Use Lenses To Correct Refractive Errors
22:07
50 ans d’erreurs médicale : l’histoire dingue de la tendinite
9:48
Comment un médicament miracle contre le VIH a disparu
18:39
Optician Training: Overview of the eye (Ocular Anatomy Lecture 1)
11:22
Office Progressive Lenses: What Are They Good For?
17:38