Which patient should have a cycloplegic drug prior to a refraction?

• A. Adult
• B. Elderly
• C. Pre-school child
• D. Teenager

Answer: (C)

Cycloplegia temporarily paralyzes the ciliary muscle, preventing the eye from accommodating during refraction. In very young children, accommodation is strong and can mask latent hyperopia or cause a spurious refractive result if not paralyzed. By using a cycloplegic drop, you reveal the true refractive error without the influence of sustained focusing, which is essential for an accurate prescription in a pre-school child. In adults and older patients, accommodation is minimal, so cycloplegia isn’t routinely needed for a reliable refraction. Teenagers may still accommodate, but cycloplegic refraction is generally reserved for specific concerns rather than routine testing. Therefore, the pre-school child is the patient who should have a cycloplegic drug prior to refraction.