Ads
related to: what is a iris
Search results
Results From The WOW.Com Content Network
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 ...
Iris is a flowering plant genus of 310 accepted species [1] with showy flowers.As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera.
In ancient Greek religion and mythology, Iris (/ ˈ aɪ r ɪ s /; EYE-riss; Ancient Greek: Ἶρις, romanized: Îris, lit. 'rainbow,' [2] [3] Ancient Greek:) is a daughter of the gods Thaumas and Electra, [4] the personification of the rainbow and messenger of the gods, a servant to the Olympians and especially Queen Hera.
The irises of human eyes exhibit a wide spectrum of colours. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
The Iris, the antagonist in Gemini Home Entertainment web series; Iris Buenavidez-de Vera, a Lavender Fields character; Iris Donnelly Garrison, a fictional character in the American soap opera Love is a Many Splendored Thing; Iris Irine, a Ragnarok character; Iris Pike, an Afraid (2024) character; Iris Sagan, in AI: The Somnium Files
Section Iris. Iris adriatica Trinajstic ex Mitic; Iris albertii Reg. Iris albicans – white cemetery iris, white flag iris; Iris alexeenkoi Grossh.
The iris is the pigmented circular structure concentrically surrounding the centre of the eye, the pupil, which appears to be black. The size of the pupil, which controls the amount of light entering the eye, is adjusted by the iris' dilator and sphincter muscles .
The iris is the diaphragm, the pupil is the aperture. In the human eye, the iris can both constrict and dilate, which varies the size of the pupil. Unsurprisingly, a photographic lens with the ability to continuously vary the size of its aperture (the hole in the middle of the annular structure) is known as an iris diaphragm.