For high plus lenses, the steeper the base curve, the __ the lens looks and the ______ the magnification.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

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

For high plus lenses, the steeper the base curve, the __ the lens looks and the ______ the magnification.

Explanation:
When a high plus lens has a steeper base curve, the back surface bulges more, so the lens becomes physically thicker overall and looks bulkier. The magnifying effect you get from a plus lens is mainly tied to its power and the eye’s position relative to the lens; changing the back surface curvature doesn’t boost angular magnification and can even slightly reduce it because more of the light travels through thicker material. So the correct idea is that the lens looks thicker and the magnification decreases.

When a high plus lens has a steeper base curve, the back surface bulges more, so the lens becomes physically thicker overall and looks bulkier. The magnifying effect you get from a plus lens is mainly tied to its power and the eye’s position relative to the lens; changing the back surface curvature doesn’t boost angular magnification and can even slightly reduce it because more of the light travels through thicker material. So the correct idea is that the lens looks thicker and the magnification decreases.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy