What question did this study set out to answer?

To explore qualitative and quantitative criteria for prescribing plus lenses in prepresbyopes and assess their clinical implications.

March 21, 2026

Clinical Approaches to Nearpoint Lens Power Determination

Key Points

To explore qualitative and quantitative criteria for prescribing plus lenses in prepresbyopes and assess their clinical implications.
Described 12 behavioral objectives for lens prescribing.
Presented four quantitative criteria using the MEM-LN dynamic retinoscopy method.
Evaluated responses using a +0.50 sphere prescription at 40 cm.
Identified seven observable patterns of accommodative responses.
Showed implications of lens prescription on proximal stimulus characteristics and accommodative response.

Abstract

ABSTRACT Qualitative and quantitative criteria for prescribing plus lenses at near for prepresbyopes together with 12 behavioral objectives are described. Four quantitative prescription criteria are presented using a combined monocular estimate method‐low neutral (MEM‐LN) dynamic retinoscopy testing procedure. Each of the four prescription criteria are evaluated relative to an arbitrary +0.50 sphere prescription for seven different observable patterns of accommodative responses at 40 cm. Clinical and research implications of prescribing plus spheres are evaluated relative to the change in proximal stimulus characteristics and the change in accommodative response. Intersystem and intermodal consequences are suggested.

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Cite This Study

HAROLD M. HAYNES (Sat,) studied this question.

synapsesocial.com/papers/69be35836e48c4981c673dcb https://doi.org/https://doi.org/10.1002/j.2330-9512.1985.tb00936.x

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