Certified Paraoptometric (CPO) Practice Exam 2025

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How is the bridge size primarily defined in eyeglass fitting?

  1. By the width of the lens

  2. By the thickness of the temple

  3. By the distance separating the two lenses

  4. By the height of the frame

The correct answer is: By the distance separating the two lenses

The bridge size in eyeglass fitting is primarily defined by the distance separating the two lenses, which is crucial for ensuring a comfortable fit on the wearer’s nose. This measurement helps determine how well the glasses will rest on the face and affects both aesthetics and functionality. A properly fitting bridge allows for stable positioning of the lenses in front of the eyes, which is essential for optimal vision correction and overall comfort. Other factors such as the width of the lens, thickness of the temple, and height of the frame are important for overall frame fit and style but do not specifically define the bridge size. Focusing on the distance between the lenses provides the best indication of the bridge fit, ensuring the eyewear delivers a secure and comfortable experience for the user.

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