optic
Concerning the eye
Optic relates to the eye or vision: the optic nerve, optic disc.
As a noun, an optic is a lens or other optical component.
In British bars, an optic is a measuring device that dispenses precise amounts of liquor.
The plural optics has developed a figurative sense meaning how something appears publicly: The optics of that meeting were terrible—suggesting perception matters as much as substance.
Light-sensing tissue layer
- corneaEye's clear outer dome
- irisEye's pigmented disc
- pupilLearner or eye opening
- scleraEyeball's outer membrane
conjunctiva · lens · fovea · macula · vitreous · aqueous · choroid · rods
Eye disease physician
- eye examAssessment of sight
- refractionWave bending between media
- tonometryMeasuring eye pressure
- retinoscopyObjective refraction measurement technique
prescription · corrective lenses · glasses · contacts · LASIK · eye chart
Visual perception faculty
- eyesightVisual perception capacity
- visualOf or concerning sight
- acuitySharpness of mind or sight
- clarityState of being understandable
focus · perception · field of view · peripheral · binocular · monocular · depth perception · night vision
Visible electromagnetic radiation
- wavelengthSpatial repetition interval
- spectrumContinuous range of values
- reflectionReturned light or thought
- refractionWave bending between media
diffraction · interference · polarization · photon · beam · ray · electromagnetic · luminous
Of a central point
- apertureAdjustable optical inlet
- diopterUnit of focal power
- convexCurved outward externally
- concaveCurving inward, not outward
refraction · magnification · zoom · objective · glass · curvature · coating · spherical
Instrument magnifying faraway objects
- microscopeInstrument for viewing minute objects
- binocularsHandheld dual-lens magnifier
- periscopeAngled optical viewing tube
- spectroscopeDevice separating light frequencies
interferometer · monocular · rangefinder · stereoscope · kaleidoscope · ophthalmoscope · prism · collimator
Blurry distance vision
- hyperopiaDifficulty seeing nearby objects
- astigmatismIrregular corneal curvature disorder
- presbyopiaAge-related near vision loss
- glaucomaPressure damages optic nerve
cataract · macular degeneration · amblyopia · strabismus · keratitis · uveitis · diplopia · scotoma
retina
Light-sensing tissue layer
sclera · conjunctiva · lens · fovea · macula · vitreous · aqueous · choroid · rods · cones
ophthalmologist
Eye disease physician
- eye examAssessment of sight
- refractionWave bending between media
- tonometryMeasuring eye pressure
retinoscopy · prescription · corrective lenses · glasses · contacts · LASIK · eye chart
sight
Visual perception faculty
clarity · focus · perception · field of view · peripheral · binocular · monocular · depth perception · night vision · color vision
light
Visible electromagnetic radiation
- wavelengthSpatial repetition interval
- spectrumContinuous range of values
- reflectionReturned light or thought
refraction · diffraction · interference · polarization · photon · beam · ray · electromagnetic · luminous · transmission
focal
Of a central point
concave · refraction · magnification · zoom · objective · glass · curvature · coating · spherical · aspheric
telescope
Instrument magnifying faraway objects
- microscopeInstrument for viewing minute objects
- binocularsHandheld dual-lens magnifier
- periscopeAngled optical viewing tube
spectroscope · interferometer · monocular · rangefinder · stereoscope · kaleidoscope · ophthalmoscope · prism · collimator · refractometer
myopia
Blurry distance vision
- hyperopiaDifficulty seeing nearby objects
- astigmatismIrregular corneal curvature disorder
- presbyopiaAge-related near vision loss
glaucoma · cataract · macular degeneration · amblyopia · strabismus · keratitis · uveitis · diplopia · scotoma · floaters
- optical illusionMisleading visual perception
- fiber opticsLight-carrying cable technology
- optical instrumentLight-manipulating viewing device
- nuclear optionMost drastic available action
- stock optionContract to purchase shares
- wide-eyed optimism
option, optimism, optimal, optical, optics, optician, optometrist, optometry, optic nerve