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Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex.
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
Sgt. Pepper's Lonely Hearts Club Band. The Beatles ' 1967 album Sgt. Pepper's Lonely Hearts Club Band has a widely recognized album cover that depicts several dozen celebrities and other images. The image was made by posing the Beatles in front of life-sized, black-and-white photographs pasted onto hardboard and hand-tinted.
Hanes Jersey Pocket Shorts. $11 $16 Save $5. The stretch waistband is designed with a working drawstring so you can get a better fit.
measuring strabismus. The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
Yesterday, the small herd of elephants at the Cincinnati zoo got their first peek at their massive new enclosure, Elephant Trek, which will be open next fall. The five-acre exhibit will include ...
New York City officials have agreed to restore more than $111 million in funding to libraries and cultural institutions across the city, the City Council announced Friday.
Complication (horology) In horology, a complication is any feature of a timepiece beyond the display of hours, minutes and seconds. A timepiece indicating only hours, minutes and seconds is known as a simple movement. Common complications include date or day-of-the-week indicators, alarms, chronographs (stopwatches), and automatic winding ...