• collagen
  • The sclera, also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the eye containing mainly collagen and some elastic fiber. (wikipedia.org)
  • The sclera is the opaque (usually white), fibrous, protective layer of the eye containing collagen and elastic fibers . (wikidoc.org)
  • Mutations in the IFTM5 transmembrane protein, the gene that causes defective bone mineralization, cause OI type V. 2 Ocular signs of OI type I usually include blue sclera due to an alteration in the collagen matrix and possible corneal thinning. (jaoa.org)
  • In this study, the organization of collagen fibrils within the sclera of the eye was investigated using the 7 keV hard X-ray microscope of the Pohang light source and compared to images from electron and atomic force microscopy. (lancs.ac.uk)
  • scleral
  • The sclera is perforated by many nerves and vessels passing through the posterior scleral foramen, the hole that is formed by the optic nerve. (wikipedia.org)
  • Sometimes, very small gray-blue spots can appear on the sclera, a harmless condition called scleral melanocytosis. (wikipedia.org)
  • Scleral lenses are not to be confused with "sclera" lenses, which are soft lenses and do not contain a fluid reservoir. (wikipedia.org)
  • lamina
  • The nerve fibers forming the optic nerve exit the eye posteriorly through a hole in the sclera that is occupied by a mesh-like structure called the lamina cribrosa. (wikipedia.org)
  • Being structurally weaker than the much thicker and denser sclera, the lamina cribrosa is more sensitive to changes in the intraocular pressure and tends to react to increased pressure through posterior displacement. (wikipedia.org)
  • iris
  • In humans, the whole sclera is white, contrasting with the coloured iris, but in other mammals the visible part of the sclera matches the colour of the iris, so the white part does not normally show. (wikipedia.org)
  • The human eye is relatively rare for having an iris that is small enough for its position to be plainly visible against the sclera. (wikipedia.org)
  • This is not just due to the white color of the human sclera, which many other species share, but also to the fact that the human iris is relatively small and comprises a significantly smaller portion of the exposed eye surface compared to other animals. (wikipedia.org)
  • think(from the pictures)that the grey patches started showing up on the beggining of last year!before her eyes were white and pretty,now they are mostly grey with veins(must check that with doctor) but month ago I noticed that under and above the iris the sclera is getting blue! (medhelp.org)
  • thank you for your answer you wrote that if it would be a blue sclera there would be a diffuse and generalized blueness to her sclera but she already got some hints of blue under and above the iris on her sclera! (medhelp.org)
  • corneal
  • The examination revealed a blue-gray appearance of the sclera in both eyes (image A). Results of a corneal pachymetry measurement revealed decreased corneal thickness. (jaoa.org)
  • A second type of eye, called schizochroal, is unique to the Phacopina suborder, and has up to several hundreds of relatively large lenses (0.05-0.5 mm), that do not touch either, but the corneal membrane extends into the sclera outside the lens, and the sclera is deeper than the lens. (wikipedia.org)
  • extraocular
  • The sclera maintains the shape of the globe, offering resistance to internal and external forces, and provides an attachment for the extraocular muscle insertions. (wikidoc.org)
  • Usually, these implants are covered with a material that permits fixation of the extraocular recti muscles, such as donor sclera or polyester gauze which improves implant motility, but does not allow for direct mechanical coupling between the implant and the artificial eye. (wikipedia.org)
  • species
  • Trachypollia sclera is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. (wikipedia.org)
  • lenses
  • Take advantage of our discounted prices (as low as $134.99) and purchase your Red Sclera contact lenses online from our safe and secure web site. (contactsamerica.com)
  • Sclera" lenses are used in movies such as the whited-out eyes of the monsters in Evil Dead, or blacked-out eyes in Underworld and Underworld: Evolution, or the Star Trek episode Where No Man Has Gone Before. (wikipedia.org)
  • They have up to 70 small lenses per eye, not touching but separated from each other by the so-called interlensar sclera. (wikipedia.org)
  • The interlensar sclera is not deeper than the lenses. (wikipedia.org)
  • redness
  • In relation to the sclera, an allergic reaction may cause redness on the white of your eye. (livestrong.com)
  • In hyperemia, there is a visible increase in the blood flow to the sclera (hyperaemia), which accounts for the redness of the eye. (wikipedia.org)
  • posterior
  • The thickness of the sclera varies from 1mm at the posterior pole to 0.3 mm just behind the rectus muscle insertions. (wikipedia.org)
  • eyes
  • The eyes of all non-human primates are dark with small, barely visible sclera. (wikipedia.org)
  • Human eyes are somewhat distinctive in the animal kingdom in that the sclera is very plainly visible whenever the eye is open. (wikipedia.org)
  • For the last four months, every 2-3 weeks, the sclera of one of my eyes turns blood shot red (a broken blood capillary). (healthtap.com)
  • what cause the sclera of the eyes to turn brown? (medhelp.org)
  • The sclera of my eyes have turned brown in tint after sleeping they are very red, eye drops only get the red out. (medhelp.org)
  • occurs
  • Osseous metaplasia of the sclera is an incidental aging change that occurs frequently in Fischer 344/N rats, less often in other common rat strains, and seldom if ever in mice. (nih.gov)
  • It occurs more commonly in the regions of sclera which are perforated by vortex veins. (wikipedia.org)
  • human eye
  • It is believed that the conspicuous sclera of the human eye makes it easier for one individual to infer where another individual is looking, increasing the efficacy of this particular form of nonverbal communication. (wikipedia.org)
  • The bony area that makes up the human eye socket provides exceptional protection to the sclera. (wikipedia.org)
  • structure
  • In many vertebrates, the sclera is reinforced with plates of cartilage or bone, together forming a circular structure called the sclerotic ring. (wikipedia.org)
  • The sclera provides structure, protection ad strength to the eye, according to the Manhattan Vision Associates. (reference.com)