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I Can Read with My Eyes Shut! is a children's book written and illustrated by Theodor Geisel under the pen name Dr. Seuss and first published by Random House on November 12, 1978. [ 1 ] [ 2 ] In the book, the Cat in the Hat shows his son Young Cat the fun he can get out of reading, and also shows that reading is a useful way of gaining ...
Transmittance of EnChroma color correcting lenses (indoor and outdoor) superimposed onto the normalized spectral sensitivities of the cone opsins of a color normal observer. Glasses with a notch filter (e.g. EnChroma glasses) filter a narrow band of light around 590 nm that excites both the L- and M-cones (yellow-green wavelengths). [12]
Prismatic color distortion shown with a camera set for near-sighted focus, and using –9.5 diopter eyeglasses to correct the camera's myopia (left). Close-up of color shifting through corner of eyeglasses. The light and dark borders visible between color swatches do not exist (right).
Bifocals are eyeglasses with two distinct optical powers correcting vision at both long and short distances. Bifocals are commonly prescribed to people with presbyopia who also require a correction for myopia , hyperopia , and/or astigmatism .
Glasses (Who Needs 'Em?) is a children's picture book written and illustrated by Lane Smith. It was originally released in 1991 by Viking Books . The book received favorable reviews.
In glasses with powers beyond ±4.00D, the vertex distance can affect the effective power of the glasses. [4] A shorter vertex distance can expand the field of view, but if the vertex distance is too small, the eyelashes will come into contact with the back of the lens, smudging the lens and causing annoyance for the wearer.
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Persons with color blindness may be legally or practically barred from occupations in which color perception is an essential part of the job (e.g., mixing paint colors), or in which color perception is important for safety (e.g., operating vehicles in response to color-coded signals).