Licence: Public Domain Mark
Credit: The velocity of accommodation / by James W. Barrington. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
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![From to Eight Eye Left Eye Date Infinity Infinity Infinity 50 cm. 33 cm. ] 7 cm. 18 cm. 20 cm. see. •79 1-57 1-48 •98G sec. 1-58 1-48 •85 1 1 Feb. 3rd. 33 cm. Infinity •68 All near to far accommodations, except that noted 33 to infinity, too rapid for measurement. - It seems then : (1) That the rate of contraction and relaxation of C's eyes does not differ materially from those of A. (2) That, like A, he can estimate the time taken to relax only from moderately near to the very far off. All other near to far observations were too rapid for accurate measurement. Gross measurements of the accommodation velocities of the eyes of (D), set. 32. Ophthalmologist. Right eye V with — 3D glasses. Left V=^ Myopia is — 3D with — ToD astigmatism left uncorrected. Punct. prox. with glasses about 14 cm. Glasses used during observations. From to Eight Eye Left Eye Date sec. sec. Infinity 33 cm. 1-2 Jan. 31st. 1-5 2-03 Feb. 4th. 1^3 1^58 Feb. 4th. Infinity 15 cm. 1-77 Jan. 31st. 1-84 2-42 Feb. 4th. Infinity 14 cm. 1-8 2^6 33 cm. 15 cm. 1-61 Jan. 31st. 50 cm. 20 cm. 1-5 5) 33 cm. Infinity 1-08 Jan. 31st. All near to far accommodations other than that noted were too rapid for measurement. From these measurements it follows that](https://iiif.wellcomecollection.org/image/b2163824x_0016.jp2/full/800%2C/0/default.jpg)
