Certified Paraoptometric Practice Test

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Certified Paraoptometric Test! Study using flashcards, multiple choice questions, and detailed explanations. Get ready for your exam and boost your optometric skills!

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

What are the lenses that are also known as positive lenses, which help in converging light rays?

  1. Cylindrical lenses

  2. Minus lenses

  3. Plus lenses

  4. Toric lenses

The correct answer is: Plus lenses

Plus lenses are also known as converging lenses because they are thicker in the middle and thinner at the edges, which causes parallel light rays to be focused or converged towards a single point. Cylindrical lenses and toric lenses are typically used for correcting astigmatism, which is not related to converging light rays. Minus lenses are also known as diverging lenses and they cause parallel light rays to spread out or diverge. Therefore, they are not the correct answer for this question.

More Questions Like This