7:52

2-11 Building a Toiric System From a Spherical and Plus Cylindrical Lens

7:17

2-5 Mapping Cylindrical Axis

25:04

Optician Training: How To Use The Optical Cross

7:20

2-8 Introduction to Toric Lenses

9:00

2-4 Introduction to Cylindrical Lenses

23:24

Jose Raul Capablanca vs Alexander Alekhine | World Championship Match (1927)

7:04

Optical Cross in Retinoscopy | Understanding and Applying the Technique

6:10

2-17 Spherical Equivalent