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We describe the advantages of diffuse illumination in laser holography forophthalmology. The presence of a diffusing element introduces an angulardiversity of the optical radiation and reduces its spatial coherence, whichspreads out the energy distribution of the illumination beam in the focal planeof the eyepiece. The field of view of digitally computed retinal images caneasily be increased as the eyepiece can be moved closer to the cornea to obtaina Maxwellian view of the retina without compromising ocular safety. Compliancewith American and European safety standards for ophthalmic devices is moreeasily obtained by preventing the presence of a laser hot spot observed infront of the cornea in the absence of a scattering element. Diffuse laserillumination does not introduce any adverse effects on digitally computed laserDoppler images.

Diffuse laser illumination for Maxwellian view Doppler holography of the retina