Jcc & ducorome testing

INITIAL BEST SPHERE CORRECTION. A patient without astigmatism should be fully corrected after this step alone. ... SEARCH FOR Astigmatism. The Jackson cross cylinder (JCC) is used in this step. ... RE...read more

For axis correction, a cross-cylinder of +/- 0.5 D with the handle parallel to the axis in the test frame can be placed in front of the eye, and then the patient is asked to rate any change in visual ...read more

jcc to refine spherical power correction

Refraction with visual Acuity, according correction Duchrome, fogging, JCC, with help customers.

JCC refine spherical Power correction.

JCC to refine spherical Power correction.

Jcc and duo chrome test

JCC then duochrome test

Moniter the effect of acuity with refraction

1. INITIAL BEST SPHERE CORRECTION. A patient without astigmatism should be fully corrected after this step alone. ...

2. SEARCH FOR Astigmatism. The Jackson cross cylinder (JCC) is used in this step. ...

3. REFI...read more

I trying to do with my pacence