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This specifies the part of the prescription designed primarily to improve far vision. In a bifocal lens, this generally indicates what is to be placed in the top segment. NV is an abbreviation for near vision. This may represent a single-vision lens prescription to improve near work, or the reading portion of a bifocal lens.
LensCrafters is an international retailer of prescription eyewear and prescription sunglasses. Its stores usually host independent optometrists on-site or in an adjacent store. The company has its corporate headquarters in Mason, Ohio , a suburb of Cincinnati in the US.
In 2000, AC Lens acquired I-Ohio LLC in an exchange of private stock. [2] AC Lens now operates various websites including USA and United Kingdom based sites. Dr. Clarkson is a graduate of Southampton University in the UK and the Ohio State University College of Medicine. On February 4, 2004, the Fairness to Contact Lens Consumers Act went into ...
The lenses are called the eye lens and the field lens. The focal plane is located between the two lenses. It was invented by Christiaan Huygens in the late 1660s and was the first compound (multi-lens) eyepiece. [ 2 ]
171–191 South High Street is a pair of historic buildings in Downtown Columbus, Ohio.The commercial structures have seen a wide variety of retail and service uses through the 20th century, including shoe stores, groceries, opticians, hatters, jewelers, a liquor store, and a car dealership.
The add segment of the lens for near vision is the D-shaped area. A bifocal is a lens with two sections, separated by a line (see image to the right). Generally, the upper part of the lens is used for distance vision, while the lower segment is used for near vision. The area of the lens that caters to near vision is called the add segment.
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