ROGET'S THESAURUS OF ENGLISH WORDS AND PHRASES ...

V. be dimsighted &c n.; see double; have a mote in the eye, have a mist before the eyes,
have a film over the eyes; see through a prism, see through a glass darkly; wink, blink,
nictitate; squint; look askant † , askant askance † ; screw up the eyes, glare, glower; nictate † .
dazzle, loom.
Adj. dim-sighted &c n.; myopic, presbyopic † ; astigmatic, moon-eyed, mope-eyed, bleareyed,
goggle-eyed, gooseberry-eyed, one-eyed; blind of one eye, monoculous † ; halfblind,
purblind; cock-eyed, dim-eyed, mole-eyed; dichroic.
blind as a bat &c (blind) 442; winking &c v..
444. Spectator -- N. spectator, beholder, observer, looker-on, onlooker, witness,
eyewitness, bystander, passer by; sightseer; rubberneck, rubbernecker [U.S.].
spy; sentinel &c (warning) 668.
V. witness, behold &c (see) 441; look on &c (be present) 186; gawk, rubber [Slang],
rubberneck [U.S.].
445. Optical Instruments -- N. optical instruments; lens, meniscus, magnifier, sunglass,
magnifying glass, hand lens; microscope, megascope † , tienoscope † .
spectacles, specs [Coll.], glasses, barnacles, goggles, eyeglass, pince-nez, monocle,
reading glasses, bifocals; contact lenses, soft lenses, hard lenses; sunglasses, shades
[Coll.].
periscopic lens † ; telescope, glass, lorgnette; spyglass, opera glass, binocular,
binoculars, field glass; burning glass, convex lens, concave lens, convexo-concave lens † ,
coated lens, multiple lens, compound lens, lens system, telephoto lens, wide-angle lens,
fish-eye lens, zoom lens; optical bench.
astronomical telescope, reflecting telescope, reflector, refracting telescope, refractor,
Newtonian telescope, folded-path telescope, finder telescope, chromatoscope; X-ray
telescope; radiotelescope, phased-array telescope, Very Large Array radiotelescope;
ultraviolet telescope; infrared telescope; star spectroscope; space telescope.
[telescope mounts] altazimuth mount, equatorial mount.
refractometer, circular dichroism spectrometer.
interferometer.
phase-contrast microscope, fluorescence microscope, dissecting microscope; electron
microscope, transmission electron microscope; scanning electron microscope, SEM;
scanning tunneling electron microscope.
[microscope components] objective lens, eyepiece, barrel, platform, focusing knob;
slide, slide glass, cover glass, counting chamber; illuminator, light source, polarizer,
[component parts of telescopes] reticle, cross-hairs.
light pipe, fiber optics mirror, reflector, speculum; looking-glass, pier-glass, chevalglass,
rear-view mirror, hand mirror, one-way mirror, magnifying mirror.
[room with distorting mirrors] fun house.
prism, diffraction grating; beam splitter, half-wave plate, quarter-wave plate.
camera lucida [Lat.], camera obscura [Lat.]; magic lantern &c (show) 448;
stereopticon; chromatrope † , thaumatrope † ; stereoscope, pseudoscope † , polyscope † ,
kaleidoscope.
photometer, eriometer † , actinometer † , lucimeter † , radiometer; ligth detector,
photodiode, photomultiplier, photodiode array, photocell.