Trifocal [noun]

● Glasses

● Monocle

● Sunglasses

● Contacts

● Pince-nez

● Shades

● Specs

● Blinkers

● Goggles

● Lorgnette

● Bifocals

● Contact lenses

● Pair of glasses

● Reading glasses

● Trifocals

● Trifocal

● Tensor

● Tensors

● Bifocal

● Louchettes

● Opsiometer

● Goggle

● Multifocal

● Schmidt telescope

● Optical instrument

● Aspheric

● Presbyopic

● Achromatic lens

● Uniocular

● Radial keratotomy

● Astigmatic

● Optical device

● Dioptometer

● Optic

● Intraocular

● Perspicil

● Maksutov telescope

● Binocular vision

● Nearsighted

● Pantoscopic

● Subocular

● Ocular

● Nicol prism

● Aphakic

● Semilenticular

● Isometropia

● Anastigmatic

● Toric

● Aqueous humour

● Anaclastics

● Encauma

● Anorthopia

● Compound microscope

● Monocular

● Myopic

● Oculate

● Semilens

● Dioptric

● Megalethoscope

● Field of vision

● Postocular

● Rimless

● Longsighted

● Scotomy

● Aspherical

● Heteroptics

● Photochromic

● Iridal

● Light microscope

● Apochromatic

● Ophthalmic

● Oculo

● Diaphanoscope

● Spherical aberration

● Vitreous humour

● Vitrella

● Simple microscope

● Optigraph

● Optical

● Binocular

● Interocular

● Catadioptric

● Hyperopic

● Future progressive

● Octonocular

● Corneal

● Supraocular

● Photochromatic

● Polemoscope

● Eye doctor

● Progressive

● Perspicience

● Farsighted

● Preocular

● Keratonyxis

● Iriscope

● Monocule

● Vitreous body

● Crystalline lens

● Alethoscope

● Field of view

● Zograscope

● Compound eye

● Refractive

● Protective garment

● Scleral

● Wollaston prism

● Poreblind

● Infraocular

● Telephoto lens

● Zoom lens

● Ophryon

● Brachydiagonal

● Night blindness

● Optic disc