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Generally, diseases outlined within the ICD-10 codes H15-H19 within Chapter VII: Diseases of the eye, adnexa should be included in this category. Wikimedia Commons has media related to Disorders of sclera and cornea .
This is a partial list of human eye diseases and disorders. The World Health Organization (WHO) publishes a classification of known diseases and injuries, the International Statistical Classification of Diseases and Related Health Problems, or ICD-10. This list uses that classification.
Sclerocornea causes parts or all of the cornea to become cloudy. This cloudiness can be partial or complete. The more of the cornea that is affected, the worse a persons vision will be. The main area affected is the cornea, but the issue can also spread to nearby parts of the eye, like the limbus and front eye structure, such as the iris.
A surgeon cuts an opening in the white portion of the eye known as the sclera, and removes a tiny area of the trabecular meshwork which enables the aqueous humor to discharge. [7] This lowers the internal pressure within the eye and lessens the chance of future damage to the optic nerve. [7]
It is typically characterized by a clear, bilateral thinning in the inferior and peripheral region of the cornea, although some cases affect only one eye. The cause of the disease remains unclear. Pellucid marginal degeneration is diagnosed by corneal topography. Corneal pachymetry may be useful in confirming the diagnosis.
Cogan syndrome (also Cogan's syndrome) is a rare disorder characterized by recurrent inflammation of the front of the eye (the cornea) and often fever, fatigue, and weight loss, episodes of vertigo (dizziness), tinnitus (ringing in the ears) and hearing loss. It can lead to deafness or blindness if untreated.
The most easily identifiable sign is a visible lesion of the cornea presented usually in a crescent shape. [2] [3] [11] Common reasons for destruction are stromal degradation and epithelial defects on the inflammatory cells. [2] There would be a change in conformation of the peripheral cornea, depending on the severity of corneal thinning. [11]
Corneal neovascularization (CNV) is the in-growth of new blood vessels from the pericorneal plexus into avascular corneal tissue as a result of oxygen deprivation. [1] Maintaining avascularity of the corneal stroma is an important aspect of healthy corneal physiology as it is required for corneal transparency and optimal vision.