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The frequency characteristics of accommodative microfluctuations for central and peripheral zones of the human crystalline lens (1990)
Journal Article
Winn, B., Pugh, J., Gilmartin, B., & Owens, H. (1990). The frequency characteristics of accommodative microfluctuations for central and peripheral zones of the human crystalline lens. Vision Research,

Temporal variations in the nominally steady-state accommodation response can be characterized approximately by two principal regions of dominant activity: a low frequency region (LFR less than 0.6 Hz) and a high frequency region (HFR greater than 1.0... Read More about The frequency characteristics of accommodative microfluctuations for central and peripheral zones of the human crystalline lens.

Arterial pulse modulates steady-state ocular accommodation (1990)
Journal Article
Winn, B., Pugh, J. R., Gilmartin, B., & Owens, H. (1990). Arterial pulse modulates steady-state ocular accommodation. Current Eye Research, 9(10), 971-975. https://doi.org/10.3109/02713689009069933

Rapid and continuous fluctuations in ocular focus are known to occur when the eye views a stationary target. The advent of high-speed infra-red optometers has established that these microfluctuations of ocular accommodation have two dominant componen... Read More about Arterial pulse modulates steady-state ocular accommodation.