For investigation of accommodation and presbyopia, the ciliary body and its dynamics were imaged with Optical Coherence Tomography (OCT) method. We used two OCT systems; a discretely-swept frequency-comb OCT with a center wavelength at 1.6µ and ultra-fast spectral domain OCT with a center wavelength at 1.3μm. Measurements of dynamical modification of the ciliary body were carried out with ranging in age from 22 to 79. The OCT images and movies represent the changes of the ciliary body in the relaxed state and accommodated state. Modification in the ciliary body with accommodation was more evident for the younger subject group from the results of 2D imaging. The time dependent 3D movies of ciliary body dynamics were observed for the first time using ultra-fast spectral domain OCT system. The time duration of ciliary body thickness change in relation to the accommodation was measured from the movies.

Date Published: 13 February 2012
PDF: 9 pages
Proc. SPIE 8209, Ophthalmic Technologies XXII, 820909 (13 February 2012); doi: 10.1117/12.905401

Published in SPIE Proceedings Vol. 8209:
Ophthalmic Technologies XXII
Fabrice Manns; Per G. Söderberg; Arthur Ho, Editor(s)