The crystalline lenses of the eyes undergo mechanical, physiological, morphological and refractive changes to adjust the total refractive power of the eyes to maintain sharp visual acuity whenever an object of regard is moved toward and away from the distance at which humans typically view reading material. The aggregate changes experienced by the crystalline lenses of the eyes to maintain sharp visual acuity is referred to as accommodation. At any given time the crystalline lenses and the eyes may be regarded as being in a state of accommodation. In transitioning from one station ary state of accommodation to another stationary state of accommodation, the crystalline lenses undergo a time-dependent process of dynamic accommodation. Heretofore, all attempts to acquire imaging information regarding dynamic accommodation have been unsuccessful, and imaging information has only been acquired regarding the stationary states of accommodation between which dynamic accommodation is operative. This invention overcomes limitations for the imaging of dynamic accommodation in the field of optics and ophthalmology.It provides a technology that effectively reduces to practice dynamic accommodation, thereby lifting limitations that have confined the knowledge of accommodation to the static endpoints of the dynamic accommodative process. In the past, the barrier to imaging dynamic accommodation was due to the inability to stimulate one eye and record changes in the other because of the inward rotation of the non-fixated eye.

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Natasha Sanford