Glaucoma

You NameSent toPurposeDD /MM /YYGlaucoma : The Eye ConditionAlthough our modern understanding of glaucoma dates back yet to the mide-19th century , this group of diss was apparently recognized by the Greeks as early as 400 B .C . In Hippocratic writings , it appears as glucosis , in reference to the bluish-green diffuse of the affected kernel . The condition of glaucoma has been known to the field of ophthalmology and checkup field ever since . Currently , it is the twinkling leading vitrine of blindness in the united (Allingham and Shields 2005 1 . The prospect of the dis baseball club primarily involves the gists hence , with eyesight as virtuoso of the primary sensors , it is essential to halt progression of such conditionHowever , much(prenominal) than 2 .2 million Americans take for been diagnosed with glaucoma and as many as 2 million more could have it but mud undiagnosed . It is 1 of the leading causes of blindness , and is expected to reach more prevalent in years to come due(p) to the growing population of older adults (Balch 2006 441 (Allingham and Shields 2005 1 . World wellness Organization (WHO ) statistics indicate that glaucoma accounts for blindness in 5 .1million persons , or 13 .5 of global blindness . Worldwide , it has become the second most common cause of bilaterally symmetrical blindness as justified by the 1996 study that estimated the prevalence of open- angle and closed-angle glaucoma to be 66 .8million by year 2000 , with 6 .7 million suffering from bilateral blindness (Allingham and Shields 2005 1The term glaucoma refers to a large number of ailment but the common features involved is a distinctive progressive tense middle neuropathy , which derives from various risk factors . Glaucomatous optic neuropathy is associated with gradual blemish of the visual field , which can lead to treated right (Blanco et . al . 2002 17 . Glaucoma is a condition in which the obligate within the eye becomes so strong that it causes toll to the optic nerve . The drive results when fluid in the eye fails to drainpipe properly and builds up in the front part of the eye . The glaucoma syndromes are divided into two main categories : primary and subsidiary . The primary glaucomas are those for which of the increased impedance to outflow and noble-minded intra opthalmic pressure if known . The secondary glaucomas are associated with known ocular or systemic conditions responsible for the elevated intraocular pressure (IOP ) and resistance to outflow (Rhee 2003 181Primary open-angle glaucoma is the most common form of glaucoma in the United States , which comprises of approximately two thirds of all cases of glaucoma (Rhee 2003 181 . Two major forms of glaucoma subsist : angle closure and open-angle . Angle-closure glaucoma is ca utilise by a narrow prior(a) chamber and blockage of the outflow channels at the angle formed by the signal flag and the cornea . Such condition occurs when the fleur-de-lis becomes thickened during papillary dilation . Closed-angle glaucoma occurs when the drainage angles is blocked by one of the structure of the eye itself , commonly the iris (Zand et . al . 1999 305 . Open-angle glaucoma is caused by microscopic obstruction of the trabecular meshwork , which is commonly asymptomatic (Porth 2005 1304 Zand et . al 1999 305 , although some mickle experience a frequent need for changes in eyeglass prescription or a tendency to see halos around electric lights (Zand et . al . 1999 305 , and considerable loss of the visual field often occurs before medical treatment is sought (Porth 2005 1304 Such process usually takes place over a period of years , create a slow rise in IOP , which is also perceives to be genetic (Zand et . al .

1999 305Pathologic changes that may occur after an successiveness of acute angle-closure glaucoma include corneal edema , necrosis of the iris synechiae (adhesions of cornea and iris ) formation , cataracts , and temporary ciliary body hyposecretion . ocular nerve edema can temporarily or for good expurgate vision . The pathologic changes that may result from degenerative angle-closure glaucoma include enlargement of the optic cup and a faded visual field (Houde 2007 44The principal goal of glaucoma treatment is to reduce the intraocular pressure enough to avoid optic nerve damage . Open-angle glaucoma is insidious in onset with no symptoms , not take down pain or subjective visual disturbance . This is one reason why ophthalmologists recommend annual examinations in people over age 40 . There is no unequivocal threshold for abnormal pressure , and every eye seems to have a unique susceptibility or resistance to pressure drainage . Most normal people have eye pressures in the range of 10 to 20mm Hg . Most physicians in the United States first use one or more classes of glaucoma drops . Eye drops are absorbed into the bloodstream through the penniless mucosa and can have systemic side set up . If the pressure does not respond adequately to drops , laser and operative treatments are being initiated . Panretinal photocoagulation (PRP ) with laser is one of the laser treatments used to treat condition of neovascular glaucoma , usually secondary to diabetes or vascular occlusions (Lemura and Duvillard 2003 57ReferenceAllingman , Rand R , and Bruce M . Shields . Shields Textbook of Glaucoma Lippincott Williams Wilkins , 2005Balch , Phyllis A . Prescription for nutritionary Healing . Avery , 2006Houde , Susan . Vision Loss in Older Adults : breast feeding Assessment and Care Management . Springer Publishing association , 2007Lemura , Linda , and Serge Duvillard . Clinical Exercise Physiology Application and Physiological Principles . Lippincott Williams Wilkins 2003Porth , Carol . Pathophysiology : Concepts of change Health States Lippincott Williams Wilkins , 2005Zand etal , Janet . Smart Medicine for Healthier Living . Avery , 1999Client rascal 4 ...If you want to get a full essay, order it on our website: Ordercustompaper.com

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