Web16 Dec 2024 · sclera: [noun] the dense fibrous opaque white outer coat enclosing the eyeball except the part covered by the cornea — see eye illustration. Webepisclera: [ ep″ĭ-skle´rah ] the loose connective tissue forming the sclera and the conjunctiva.
Basic Histology of the Eye and Accessory Structures - EyeWiki
Web25 Nov 2024 · Sclera: The sclera is made up of dense connective tissue, containing collagenous and elastic fibres. Iris: The iris is the most anterior part of the vascular tunic … WebSchizochroal eyes developed as an improvement on holochroal; they were more powerful, with overlapping visual fields, and were particularly useful for nocturnal vision and possibly for colour and depth perception. Schizochroal eyes have up to 700 large lenses (large compared to holochroal lenses). sky blue hex code color
Scleroderma - NHS
Web22 Feb 2005 · Anyone with a blue sclera may want to see an ophthalmologist to rule out these possibilities. Osteogenesis imperfecta are one potential cause of blue sclerae. … The sclera, also known as the white of the eye or, in older literature, as the tunica albuginea oculi, is the opaque, fibrous, protective, outer layer of the human eye containing mainly collagen and some crucial elastic fiber. In humans, and some other vertebrates, the whole sclera is white, contrasting with the … See more The sclera forms the posterior five-sixths of the connective tissue coat of the globe. It is continuous with the dura mater and the cornea, and maintains the shape of the globe, offering resistance to internal and external forces, and … See more Redness of the sclera is typically caused by eye irritation causing blood vessels to expand, such as in conjunctivitis ("pink eye"). See more • Histology image: 08008loa – Histology Learning System at Boston University • Atlas image: eye_1 at the University of Michigan Health … See more Human eyes are somewhat distinctive in the animal kingdom in that the sclera is very plainly visible whenever the eye is open. This is not just … See more Trauma The bony area that makes up the human eye socket provides exceptional protection to the sclera. However, if the sclera is ruptured by a blunt … See more • Extraocular implant • Scleral tattooing • Sclerotomy See more WebSchizochroal eyes are compound eyes with up to around 700 separate lenses. Each lens has an individual cornea which extended into a rather large sclera . The development of schizochroal eyes in phacopid trilobites is an example of post-displacement paedomorphosis. swat share