Search results
Results from the WOW.Com Content Network
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.
Later procedures focused on modifying the axial length of the eye, by preventing elongation and staphyloma progression by placing grafts over the posterior part of the eye. In 1930, Shevelev proposed the idea of transplantation of fascia lata for sclera reinforcement. [8] Curtin promoted the use of donor-sclera grafting for reinforcement. [9]
The technique he used during the procedure, injecting the sclera with blue dye, is similar to an established method practiced by surgeons who install eye implants. [11] Larratt's wife Rachel underwent a procedure where the surgeon injected small drops of saline to create a fluid-filled pocket between the conjunctiva and the sclera, where he ...
If the eyelids are open for a few hours after death, a film of cell debris and mucus forms two yellow triangles on the sclera, each at side of the iris, with base towards the margin of cornea and apex towards medial or lateral canthus of the eye, which becomes brown and then black within a few hours, upon which dust settles and the surface ...
Eye color outside of the iris may also be symptomatic of disease. Yellowing of the sclera (the "whites of the eyes") is associated with jaundice, [82] and may be symptomatic of liver diseases such as cirrhosis or hepatitis. [83] A blue coloration of the sclera may also be symptomatic of disease. [82]
Sclerotomy is a medical intervention that involves surgical cutting in the white area of the eye, known as the sclera. [1] The goal of this intervention is usually done to correct defects in sclera that resulted as a complication of glaucoma of other ocular diseases. [2] Sclerotomy can be divided into anterior sclerotomy and posterior ...
The corneal limbus (Latin: corneal border) is the border between the cornea and the sclera (the white of the eye).It contains limbal stem cells in its palisades of Vogt.It may be affected by cancer or aniridia (a developmental problem), among other issues.
The sclera and cornea form the fibrous tunic of the bulb of the eye; the sclera is opaque, and constitutes the posterior five-sixths of the tunic; the cornea is transparent, and forms the anterior sixth. The term "corneosclera" is also used to describe the sclera and cornea together. [1]