binoculars
They make night vision goggles and monoculars.
According to the company, using the Eye-Trek Monocular is akin to looking at images on a 10-inch monitor.
Hand-held monoculars, telescopic lenses mounted over eye glasses, video enlargement machines, and other types of magnifiers may help some people with albinism.

SMART Vocabulary: related words and phrases

Physics: optics, microscopy & lasers
anti-reflection
anti-reflective
chromatic aberration
concentrator
converging lens
eyepiece
field glasses
non-reflecting
opera glasses
optical density
optics
polarization
polarize
polarized
reflection
reflective
refract
spotting scope
spyglass
transparency

Examples of monocular

monocular
In such animals, all the patches appear evenly stained after monocular enucleation.
These findings mean that the contrast of the dark-field columns switches sometime between hours and weeks following monocular enucleation.
The effect of monocular lid suture is obvious in individual animals, because deprivation shrinks one eye's columns and expands the other's.
Our experiments have consistently shown that binocular information is processed faster than monocular information.
These deprivation conditions mimic congenital cataracts; both conditions reduce visually driven activity, however, only monocular deprivation leads to unequal binocular competition.
Binocular rivalry and monocular dominance studied with optokinetic nystagmus.
The evaluation of all subjects was monocular with random choice of the tested eye.
It is possible that the monocular connections are imprecise locally, so that they link cells of matching eye dominance but of nonmatching orientation.
Each monocular zone corresponds to a 5-deg sector along the lower ver tical meridian, extending into the ipsilateral visual field.
Viewing was monocular, with unlimited time and no feedback.
Monocular deprivation and reverse suture els of a class of underlying mechanisms.
To monocular stimulation no significant age-dependent latency change was observed.
The amplitude of the positive wave dropped exponentially with age to binocular and monocular stimulation.
The latency of the positive wave shortens with increasing age to binocular stimulation, whereas to monocular stimulation it does not show significant age-dependent changes.
Monocular observation through a physical or even notional intersecting plane is thus conceived as relatively 'constructed' by the geometric formula.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.