Related by context. Frequent words. (Click for all words.) 60 refractive error 57 megapixel CCD sensor 56 astigmatism 55 #mm #mm [002] 54 magnification 54 collimator 54 3x zoom 53 maximum aperture 53 refractive errors 53 eyepieces 53 wavefront 53 f#.# 53 F#.# [001] 53 lenses 53 eyepiece 53 transmissive 53 3x optical zoom lens 53 focal length 52 IOLs 52 aperture 52 emissivity 52 chromatic aberration 52 focal lengths 52 lens 52 #x zoom lens 51 parallax 51 shutter glasses 51 intraocular lens 51 luminous flux 51 electronic viewfinder 51 #x#mm [004] 50 #mm #mm [004] 50 binocular 50 cm2 50 bifocal 50 #mm F#.# [001] 50 diffractive 49 #mm f/#.# [002] 49 micrometer 49 monocular 49 phacoemulsification 49 optical zoom lens 49 5x zoom 49 LCD touchscreen 49 refractive 49 Crystalens 49 pulse width modulation PWM 49 parallax barrier 48 4x optical zoom 48 magnifications 48 #/#in 48 SP #UZ 48 brightness 48 Backlight 48 #x zoom [001] 48 EVF 48 grayscale 48 Lenses 48 μm 48 loupe 48 FOV 48 x #.#cm [002] 48 CCD camera 48 laser rangefinder 48 absorbance 48 megapixel CCD 48 viewfinder 48 vignetting 47 f/#.# 47 gyro sensor 47 #μm [001] 47 rotatable 47 curvature 47 #.#x optical zoom [001] 47 #x optical zoom lens 47 4x zoom 47 Selectable 47 refraction 47 transmittance 47 visual acuity 47 #.#μm [001] 47 bevel 47 #x# pixel [002] 47 GXR 47 RGB color 47 backlit display 46 intraocular lenses 46 #μm [002] 46 CCD sensor 46 eyeglass lenses 46 upper eyelid 46 x#.# [002] 46 fisheye 46 corrective lenses 46 mm ² 46 5x optical zoom 46 3X optical zoom 46 f/# 46 near infrared NIR 46 viewing angle 46 Xenon flash