If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
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All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
THIS COMPREHENSIVE REVIEW MANUAL IS PERFECT FOR ANYONE SEEKING TO GAIN CERTIFICATION IN THE REWARDING FIELD OF OPTICIANRY. SECTION ONE: The reader will walk through twenty essential topics including simplified examples. Covered subjects include:Metric System Focal Lengths & Lens Powers Transposition Astigmatism Classification Optical Crosses Finding Power at a NonPrescribed Axis Spherical Equivalent Determining Reading / Intermediate Rx Vertical Decentration (Above/Below) Decentration Minimum Blank Size Image Jump Splitting Prism Prism Direction Prentices Rule (Spherical Rx's) Prentices Rule (Cylindrical Rx's) Vertex Distance Slab Off Common Lens Values Index of RefractionSECTION TWO:In the second part of this manual the reader will encounter a 125 question multiple choice test. SECTION THREE:Answers and Explanations to the 125 question exam.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
