Monocular estimate method
Encyclopedia
The monocular estimate method or monocular estimation method is a form of dynamic retinoscopy widely used to objectively measure accommodative
Accommodation (eye)
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image on an object as its distance changes....

 response. Values normally attained when performing MEM are between +0.25 and +0.50 diopters.
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