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The ring is in the fibrous outer layer of the eye, called the sclera. The structure is commonly referred to as the sclerotic ring; but, because the word sclerotic often implies pathology of the sclera ( see " sclerosis ", an unrelated medical condition [ 2 ] ), recent authors have urged avoiding the use of this term, to avoid confusion and to ...
A circle of bony plates, the sclerotic ring, surrounds the eye and holds it rigid, but an improvement over the reptilian eye, also found in mammals, is that the lens is pushed further forward, increasing the size of the image on the retina. [4] Fields of view for a pigeon and an owl
The sclera's blood vessels are mainly on the surface. Along with the vessels of the conjunctiva (which is a thin layer covering the sclera), those in the episclera render the inflamed eye bright red. [6] In many vertebrates, the sclera is reinforced with plates of cartilage or bone, together forming a circular structure called the sclerotic ring.
Diagram of a human eye (horizontal section of the right eye) 1. Lens, 2. Zonule of Zinn or Ciliary zonule, 3. Posterior chamber and 4. Anterior chamber with 5. Aqueous humour flow; 6. Pupil, 7. Corneosclera or Fibrous tunic with 8. Cornea, 9. Trabecular meshwork and Schlemm's canal. 10. Corneal limbus and 11. Sclera; 12. Conjunctiva, 13. Uvea ...
English: Schematic diagram of anterior segment of human eye (horizontal section of the right eye). 1. Lens, 2. Zonule of Zinn or ciliary zonule, 3. Posterior chamber and 4. Anterior chamber with 5. Aqueous humour flow; 6. Pupil, 7. Corneosclera with 8. Cornea, 9. Trabecular meshwork and Schlemm's canal. 10. Corneal limbus and 11. Sclera; 12 ...
An internationalised vector image was then created by User:Silversmith and uploaded to Commons as Image:Schematic diagram of the human eye.svg (see right). On request, this version with English annotations was created and uploaded here. Later, the text labels were made into hyperlinks pointing at relevant articles in the English Wikipedia.
eye-ring, a circle of tiny, contrasting feathers that outline the eyes of some birds. limbal ring, a dark ring around the iris of the eye, where the sclera meets the cornea. periorbital dark circles, dark blemishes around the eyes. scleral ring, a ring of cartilage or bone that surrounds the eyes of many vertebrate animals, most notably birds ...
The diameter of the eye socket was 2.8 cm (1.1 in), while the outer diameter of the sclerotic ring was 2.3 cm (0.91 in), and its inner diameter 1.5 cm (0.59 in). The ring consisted of 15 ossicles (small bones also termed plates) which overlapped each other with no gaps, and the rims of the ring were regularly rounded.