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There’s also less of a chance of knocking it around on something and causing damage over a long period. What is a monocular good for? A monocular is a great optical device for on-the-go use. When comparing a monocular vs binoculars, one of the great things about a monocular telescope is that it’s smaller and less clunky than what traditional binoculars offer. However, in the optics world, monoculars tend to get overlooked, and that’s very unfortunate.Ī good monocular can deliver a quality image just as well as any optical instrument and some of the best binoculars. There are a lot of times when you’d probably prefer to use a monocular to a set of binoculars. But are twin viewing tubes always better than one? Binoculars consist of twin viewing tubes, while a monocular has one. The key differences when comparing optical devices like monoculars vs binoculars are obvious. When comparing a monocular vs binoculars, it’s important to ask what is a monocular and how is it different from a set of modern binoculars?
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What is a monocular, you ask? And between monocular vs binoculars - which optical device is the better value? If you know any outdoor enthusiasts, then there’s a very good chance they’ve already considered a monocular vs binoculars. This indicates that to get a true sense of an individual' s vision function in daily life, one must measure vision binocularly.Winter’s in the rearview mirror and we’re all excited to get back to the great outdoors and enjoy some warmer weather. As has been previously reported, in the presence of large interocular differences, binocular gain is not seen, but binocular loss does not necessarily occur.įor a significant portion of this elderly population, binocular performance is not well represented by better eye monocular measures. All low contrast measures and contrast sensitivity show more binocular gain/loss than standard acuity. This indicates that for 1/5 to (1/2) of individuals, binocular vision is not well represented by monocular vision measures.
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However, the percent of individuals showing a line or more of gain or loss ranged from approximately 20% for high-contrast acuity to 49.5% for low-contrast acuity at low luminance. The mean difference between binocular and better eye monocular acuity was <2 letters for all measures, suggesting little gain or loss. For each measure, the frequency of binocular gain and loss, as well as the mean gain or loss were determined. For contrast sensitivity, the criterion for binocular gain or loss was one letter triplet (0.15 log unit) or more difference. Binocular loss was defined as poorer performance by one line or more binocularly than with the better eye alone. Binocular gain for acuity measures was defined as better performance by one line or more under binocular conditions than with the better eye alone.
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Each individual was tested binocularly and then monocularly on high-contrast acuity, various low-contrast acuity measures, and contrast sensitivity. Ninety-five individuals over the age of 70 (mean age 80.5 years, range, 71.8 to 93.5) with acuity of 20/40 (logMAR 0.3) or better in at least one eye participated. To evaluate the frequency and magnitude of binocular gain (and loss) for high-contrast acuity, various low-contrast spatial vision measures and contrast sensitivity in an elderly population.