Compared with spectacles, do hyperopes accommodate more or less with contact lenses?

Prepare for the NBEO Physiological Optics Test with flashcards and multiple choice questions, each offering hints and explanations. Equip yourself for your exam!

Multiple Choice

Compared with spectacles, do hyperopes accommodate more or less with contact lenses?

Explanation:
When a farsighted eye uses lenses, the amount of accommodation needed depends on where the corrective power is located relative to the eye. Contact lenses sit directly on the cornea, delivering the correction without the extra distance (vertex distance) between lens and eye that spectacles have. That closer, more direct correction means the eye’s own focusing system has less work to do, especially for near tasks. As a result, hyperopes tend to use less accommodation with contact lenses than with spectacles.

When a farsighted eye uses lenses, the amount of accommodation needed depends on where the corrective power is located relative to the eye. Contact lenses sit directly on the cornea, delivering the correction without the extra distance (vertex distance) between lens and eye that spectacles have. That closer, more direct correction means the eye’s own focusing system has less work to do, especially for near tasks. As a result, hyperopes tend to use less accommodation with contact lenses than with spectacles.

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