Part of the eye

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Possible Answers: IRIS, ARTS, LENS, UVEA, LASH, RETINA, CORNEA, CRYSTALLINELENS.

Last seen on: –New York Times Crossword – Feb 4 2019
Newsday.com Crossword – Jan 1 2019
Newsday.com Crossword – Dec 31 2018
NY Times Crossword 2 Sep 18, Sunday
Newsday.com Crossword – Aug 22 2018
Newsday.com Crossword – Aug 20 2018

Random information on the term “IRIS”:

The iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Eye color is defined by that of the iris. In optical terms, the pupil is the eye’s aperture, while the iris is the diaphragm that serves as the aperture stop.

The iris consists of two layers: the front pigmented fibrovascular known as a stroma and, beneath the stroma, pigmented epithelial cells.

The stroma connects to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae) which pull the iris radially to enlarge the pupil, pulling it in folds. The back surface is covered by a heavily pigmented epithelial layer that is two cells thick (the iris pigment epithelium), but the front surface has no epithelium. This anterior surface projects as the dilator muscles. The high pigment content blocks light from passing through the iris to the retina, restricting it to the pupil. The outer edge of the iris, known as the root, is attached to the sclera and the anterior ciliary body. The iris and ciliary body together are known as the anterior uvea. Just in front of the root of the iris is the region referred to as the trabecular meshwork, through which the aqueous humour constantly drains out of the eye, with the result that diseases of the iris often have important effects on intraocular pressure and indirectly on vision. The iris along with the anterior ciliary body provide a secondary pathway for aqueous humour to drain from the eye.

IRIS on Wikipedia

Random information on the term “ARTS”:

The Alpha Repertory Television Service (ARTS) is a defunct American cable television network that was owned by Hearst/ABC Video Services, a joint venture between the Hearst Corporation and the American Broadcasting Company (ABC). The network, which operated nightly on the channel space of Nickelodeon, focused mainly on fine arts programming. It merged with The Entertainment Channel in 1984 to become the Arts and Entertainment Network (A&E).


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By the early 1980s, cable television had reached millions of American households and was starting to draw significant audiences away from the “Big Three” broadcast television networks. All three networks saw opportunities to expand into cable television in order to protect and grow their audiences, and they all experimented with niche programming. In fact, all three traditional networks introduced arts-related channels within one year of each other. CBS launched CBS Cable in 1981, which focused on “art house” and critical acclaimed programs; NBC, meanwhile, launched the similarly formatted The Entertainment Channel.

ARTS on Wikipedia

Random information on the term “LENS”:

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis. Lenses are made from materials such as glass or plastic, and are ground and polished or moulded to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses.

The word lens comes from the Latin name of the lentil, because a double-convex lens is lentil-shaped. The genus of the lentil plant is Lens, and the most commonly eaten species is Lens culinaris. The lentil plant also gives its name to a geometric figure.

The variant spelling lense is sometimes seen. While it is listed as an alternative spelling in some dictionaries, most mainstream dictionaries do not list it as acceptable.

LENS on Wikipedia

Random information on the term “LASH”:

A whip is a tool, traditionally designed to strike animals or people to aid guidance or exert control over animals or other people, through pain compliance or fear of pain, although in some activities whips can be used without use of pain, such as an additional pressure aid or visual directional cue in equestrianism. Whips are generally of two types, either a firm stick designed for direct contact, or a flexible whip that require a specialized swing to be effective, but has a longer reach and greater force, though may have less precision. There are also whips which combine both a firm stick (the stock or handle) and a flexible line (the lash or thong), such as hunting whips.

The majority of whips are designed for use on animals, although whips such as the “cat o’ nine tails” and knout were specifically developed for flagellation as a means of inflicting corporal punishment or torture on human targets. Certain religious practices and BDSM activities involve the self-use of whips or the use of whips between consenting partners. Misuse on animals may be considered animal cruelty, and misuse on humans may be viewed as assault.

LASH on Wikipedia