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Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of sight" because the loss of vision usually occurs slowly over a long period of time. [5]
Glaucoma is the leading cause for irreversible blindness globally. [11] Glaucoma usually starts with no symptoms to start losing peripheral vision, and if untreated, it can leads to a complete loss of peripheral vision, which is tunnel vision, and eventually, central vision will be affected leading to complete blindness.
Untreated glaucoma leads to total blindness. Surgical treatment is required. Presently-utilized surgical procedures include goniotomy, trabeculotomy, or trabeculectomy. Goniotomy (ab interno) is done when the cornea is clear while in the case of a hazy or opaque cornea, trabeculotomy (ab externo) can be done. Some hyperosmotic agents such as ...
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
The crystalline lens inside the human eye has been implicated as a causative factor in many forms of glaucoma. Lens induced glaucomas or Lens related glaucomas are either open-angle or closed-angle glaucomas that can occur due to a neglected advanced cataract (cloudiness of the lens) or a dislocated lens. It is a type of secondary glaucoma.
Left untreated, this event carries a high risk of stroke; after carotid endarterectomy, which has a low operative risk, there is a very low postoperative stroke rate." [ 43 ] However, the rate of subsequent stroke after amaurosis is significantly less than after a hemispheric TIA, therefore there remains debate as to the precise indications for ...
One key point is that although treatment can help reduce intraocular pressure, which is the only risk factor that can be modified, and early treatment of patients with ocular hypertension has appeared to reduce glaucoma incidence, treatments might not eliminate the possibility of still getting glaucoma.
Since it was first described, A number of noninfectious etiological theories have been proposed including autonomic dysregulation, allergy, variation of developmental glaucoma, autoimmune/HLA-Bw54 and abnormality of the ciliary vasculature. [2] Initially, infectious etiologies were not considered because of the episodic nature of the acute attacks.