Which technique does NOT measure the accuracy of the accommodative system?

Which technique does NOT measure the accuracy of the accommodative system?

• A. Static retinoscopy
• B. MEM
• C. Nott's Method
• D. Mohindra

Answer: (A)

Accommodative accuracy is about how well the eye’s lens power matches a given focusing demand, especially for near tasks. Techniques that actively impose a near stimulus and observe the refraction or reflex directly reveal how the accommodative system responds to that demand. MEM uses a near target and measures the lag by comparing the reflex to the known near demand. Nott’s Method switches the target between distance and near and dynamic retinoscopy tracks how the reflex shifts, yielding a measure of accommodative accuracy. Mohindra is a near, low-light retinoscopy technique at 50 cm that estimates the habitual near focus and lag without cycloplegia, providing another read on how the accommodative system responds. Static retinoscopy, on the other hand, determines the eye’s refractive error at a distance with neutralization while the patient is not required to accommodate to a near target. It gives a baseline refraction, not the eye’s dynamic response to a near stimulus, so it does not assess the accuracy of the accommodative system.

Accommodative accuracy is about how well the eye’s lens power matches a given focusing demand, especially for near tasks. Techniques that actively impose a near stimulus and observe the refraction or reflex directly reveal how the accommodative system responds to that demand. MEM uses a near target and measures the lag by comparing the reflex to the known near demand. Nott’s Method switches the target between distance and near and dynamic retinoscopy tracks how the reflex shifts, yielding a measure of accommodative accuracy. Mohindra is a near, low-light retinoscopy technique at 50 cm that estimates the habitual near focus and lag without cycloplegia, providing another read on how the accommodative system responds.

Static retinoscopy, on the other hand, determines the eye’s refractive error at a distance with neutralization while the patient is not required to accommodate to a near target. It gives a baseline refraction, not the eye’s dynamic response to a near stimulus, so it does not assess the accuracy of the accommodative system.