The Jackson Cross Cylinder (JCC)
The Jackson Cross Cylinder (JCC)
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Axis Refinement (2nd Step in JAckson cross cylinder)
Axis Refinement (2nd Step in JAckson cross cylinder)
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YouTubeOptometry with KHURRAM
This eye test is called Jackson's Cross Cylinder, or JCC for short! It uses negative and positive cylinders of equal strength to find out if a patient needs a cylindrical correction. Put it simply, it finds out the degree of your astigmatism. There is really no correct or wrong answer so don’t overthink and tell us what you see! Disclaimer: The chart for this test is usually a cluster of dots! The picture of the bird/house is just for lols XD!
This eye test is called Jackson's Cross Cylinder, or JCC for short! I…
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