Optical instrumentation for eye length measurement using a short coherence length laser-based interferometer approach

Abstract

Articles you may be interested in CO2 laser-based dispersion interferometer utilizing orientation-patterned gallium arsenide for plasma density measurements Rev. Sci. Instrum. 84, 093502 (2013);An optical interferometric approach is described for the measurement of axial eye length. The technique uses the short coherence length characteristics of the light source to locate, interferometrically, the position of the front surface of the eye and the retina. Results are presented from studies on an idealized model eye and the precision of the measurement is discussed. The advantages of the technique and a comparison with previously used short coherence measurements are also reviewed.

Note: A gel based imaging technique of the iridocorneal angle for evaluation of angle-closure glaucoma

“…[16][17][18][19] An optical interferometric based method for the measurement of axial eye length has been reported. 20 Also, multispectral optical imaging of the human ocular fundus has been carried out in the recent past using LED illumination. 21 An endoscope based method has been used to obtain retinal images and iridocorneal angle in larger mammals; 22 however, the need for mechanical contact of probe distal end with the cornea by extreme pressure could cause abrasions of the corneal epithelium even with the presence of the gel on the cornea.…”