Axial Map. The axial map displays axial radius of curvature or axial power, which is calculated by referring the optical (or sagittal) axis, as with the manual keratometer. Although this is the ...

While commonly referred to as a “broken wrist,” most wrist fractures are actually fractures of one or both of the two bones of the forearm, the radius and the ulna. A fracture of the distal radius is ...

RoC represents the radius of curvature at the parent vertex The conic ... Depending on the off-axis angle, the aperture on the optics surface may seem elliptical or rectangular.

This book presents a systematic account of optical coherence theory within the framework of classical optics, as applied to such topics as radiation from sources of different states of coherence, ...

AIMS/BACKGROUND It has been reported that the number of optic nerve fibres decrease with age, and the cup/disc (C/D) ratio increases as the optic disc size increases. Consequently, the normal value of ...

In a discovery that blurs the line between biology and technology, scientists have found that heart-shaped clams use fiber optic–like structures to channel sunlight through their shells in much ...

A poor grasp of theory of mind predicts autism diagnoses, according to many studies, a correlation that may exist on a continuum. Children with autism may have difficulty interpreting directions ...

Information processing at the cell type level begins in the retina. Visual signals travel via the optic nerve, formed by the axons of RGCs. After partially crossing at the optic chiasm, these fibers ...