Measurements and speculations on the subclinical astigmatism
Anno: 1985
Autori: Ronchi L.
Affiliazione autori: Istituto Nazionale di Orrica, Largo E. fermi6, 50125 Firenze, Italy
Abstract: By the use of a slip pupil of variable orientation, placed in the focal plane of a Badal lens (sometimes coupled to a laser refractor), faint meridional differences in optical power are found in eyes clinically regarded as emmetropic. The subclinical astigmatism is known to depend on a number of stimulus related factors. Amongst others, fresh material is now displayed indicating its dependence on the spectral composition grain (or texture) of the screen. It cannot be escluded that these effects have a behavior related teleological meaning.
Giornale/Rivista: PROCEEDINGS OF SPIE
Volume: 601 Da Pagina: 130 A: 137
Parole chiavi: astigmatism