A system for determining a spherical power of the eyes of the subject based on the measured refractive error associated with the red reflex image is provided. The system (i) predicts a position of a plurality of facial landmarks on the facial image of the subject, (ii) extracts the eyes...
Define spherical. spherical synonyms, spherical pronunciation, spherical translation, English dictionary definition of spherical. also spher·ic adj. 1. a. Having the shape of a sphere; globular. b. Having a shape approximating that of a sphere. 2. Of or
A spherical power whose focal point coincides with the circle of least confusion of a spherocylindrical lens. Hence, the spherical equivalent of a prescription is equal to the algebraic sum of the value of the sphere and half the cylindrical value, i.e. sphere + cylinder/2.Example: the sphe...
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Holographic multivergence target for subjective measurement of the spherical power error of the human eye Opt. Lett. (2003) N. Nguyen et al. An experimental investigation of the vision of hyperopes and myopes using a hologram Biomed. Opt. Express (2012) P. Hariharan Basics of Holography (200...
24.A spherical display and control device according to claim 21 wherein ere at least one of said pegs provides a socket suitable for connecting the device externally using a USB standard (Universal Serial Bus) for power recharging and connectivity. ...