optic axis Definition

principal axis, uniaxial, orientation, circle, transverse, circles, circling, arteria centralis retinae, bisectrix, blind spot, central artery of the retina, color, connection, eye, ocular, optic disc, optic disk, pleochroism, retina, rod, scotoma, squint, strabismus, tract, uvea, eyeball, fiber, fossa, nerve, sclera, biaxial, ganoidei, symphysis, aberration, amplitude, angle of incidence, angle of inclination, anhedral, argument, axil, beam, bob, branch, centre, cissoid, clinodiagonal, collimated, collimator, compass plant, concavo-convex, cone, coud, crank, cranking, cranks, cross section, crosscut, crosshair, cylinder, dihedral, direction, elevation, ellipse, equatorial, eyepiece, feather, fly, focal plane, focal point, focus, foreshorten, globe, gnomon, gudgeon, gunsight, helix, hexagonal, hyperbola, impulse, incidence, inclination, inclinometer, isotropic, knife-edge, latitude, lens, level, median, moment, monoclinic, myelin, oblique, offset, patch, perpendicular, phase, pitch, pitched, plunge, point,