JCC procedure| Axis refinement| Power refinement|Discovering astigmatism

Hi all! This video is about the procedure of Jackson cross cylinder test which is a part of subjective refraction. In this video we will see how to refine the cylindrical axis, how to refine the cylindrical power and how to discover any astigmatism if present. Before beginning with the procedure, I request you to watch the video on Basics of JCC in our channel https://youtu.be/T_-qy8GbyRI subscribe to our channel https://www.youtube.com/channel/UCA8MaTN0HBsy1DGr7g8E8_g?sub_confirmation=1 #jacksoncrosscylinderprocedure #jcc #jcctest #refinementofcylinderpower #refinementofcylinderaxis #subjectiverefraction #optometry #astigmatism Thanks for watching!