In frame measurements, the A measurement represents which dimension?

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Prepare for the Ophthalmic Optics Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

In frame measurements, the A measurement represents which dimension?

Explanation:
The dimension being described is the horizontal span across the front of the frame, from left edge to right edge. This horizontal width tells you how wide the frame sits on the face and helps ensure the lenses and optical centers align properly with the eyes. It’s different from vertical height (top to bottom of the lenses), diagonal width (corner-to-corner distance within a lens), and circumference (the frame’s outer perimeter). So the horizontal width is the measure in question.

The dimension being described is the horizontal span across the front of the frame, from left edge to right edge. This horizontal width tells you how wide the frame sits on the face and helps ensure the lenses and optical centers align properly with the eyes. It’s different from vertical height (top to bottom of the lenses), diagonal width (corner-to-corner distance within a lens), and circumference (the frame’s outer perimeter). So the horizontal width is the measure in question.

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