18 pages matching retinoscopy in this book
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ametropia anisometropia aphakia astigmatic eye astigmatism axis 90 back surface bifocal coincide concave lens concave mirror conjugate focal distance conjugate foci contact glass convergence convex lens cornea correcting lens cross-cylinder crystalline lens curved cycloplegia cycloplegic cylinder degrees difference diffusion-image diopters dioptric power dioptric system direction diverge emergent rays emmetropia emmetropic emmetropic eye equal error formula Gullstrand horizontal hypermetropia illumination image-point incident ray index of refraction infinitely thin lenses measured medium meters myopia myopic eye nodal point object-point oblique Ophth ophthalmoscope optical center patient perpendicular placed position posterior principal focus posterior surface power of accommodation presbyopic principal axis principal focal distance principal focal plane principal meridian principal plane principal point prism pupil radius of curvature reflected reflex refracting surface retina retinal image retinoscopy schematic eye second surface seen segment sphere spheric lens static refraction telescope thickness tion toric trial frame vertical vision visual acuity visual line