Dynamic retinoscopy best describes which concept?

• A. It uses a fixed accommodation demand
• B. It determines accommodative accuracy by finding the distance at which neutrality is achieved
• C. It measures ocular motility
• D. It cannot be used to infer refractive error

Answer: (B)

Dynamic retinoscopy probes how well the eye can accommodate when the demand changes. By presenting a near target and adjusting the viewing distance (or lens demand) until the retinoscopic reflex becomes neutral, you pinpoint the exact point where the eye’s accommodation exactly matches the target’s demand. That neutral point reflects the patient’s accommodative accuracy and amplitude in response to the changing stimulus. In contrast to static retinoscopy, which assesses refractive status with relaxed accommodation at a fixed distance, dynamic retinoscopy reveals how well accommodation can be recruited and sustained for near tasks. So the distance (or lens power) at which neutrality occurs directly informs you about accommodative accuracy.