对谐波相关复杂光栅图案及其组成部分的调节精度。

Accommodative accuracy to harmonically related complex grating patterns and their components.

作者信息

Dul M, Ciuffreda K J, Fisher S K

机构信息

Schnurmacher Institute for Vision Research, SUNY/State College of Optometry, New York 10010.

出版信息

Ophthalmic Physiol Opt. 1988;8(2):146-52. doi: 10.1111/j.1475-1313.1988.tb01030.x.

DOI:10.1111/j.1475-1313.1988.tb01030.x

PMID:3211555

Abstract

Monocular steady-state accommodation was measured to harmonically related complex grating patterns and their components to determine the contribution of the various spatial waveforms to accommodative accuracy. Accommodative accuracy was greater for those waveforms containing summed odd-harmonic spatial components than for those waveforms with specific spatial components either removed or isolated. The results suggest that the contrast gradient produced by the summed waveforms, rather than the presence of any particular subset of spatial frequency components per se, was a critical factor for accurate accommodation.

摘要

测量了单眼稳态调节对谐波相关的复杂光栅图案及其成分的反应，以确定各种空间波形对调节精度的贡献。对于那些包含相加奇次谐波空间成分的波形，其调节精度高于那些特定空间成分被去除或分离的波形。结果表明，相加波形产生的对比度梯度，而非任何特定空间频率成分子集本身的存在，是精确调节的关键因素。