Najah Videos

In this lecture, we discuss the fundamental concepts of Acids and Bases, and the definitions of Arrhenius and Bronsted-Lowry. We also differentiate between the weak and strong acid and the concept of Ka. Also the pH is introduced

Retinoscopy - The Procedure (Sphere/Cylinder) Method | Primary Optometry Care I

Ithar Beshtawi | Primary Optometry Care I
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This lecture describes point by point the procedure of sphere/cylinder retinoscopy technique . it also explain the proper way of finding the final prescription and how to record it on an accurate and efficient manner

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