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ABO NOCE Basic Opticianry

Category - Ophthalmic Optics

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Using the Standard or TABO notation when looking at the patient, the 180 degree mark would be where on the patient’s lens?

On the top of both lenses
On the left of both lenses
On the bottom of both lenses
On the right of both lenses

Explanation

Answer: B - Looking at the patient, the 180 degree mark on each lens will be on the left, with 0 degree on the right and the 90 degree meridian at the top.

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