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Glaucoma is a progressive ocularneuropathywhich is one of the leading causes ofblindnessin the globe . In glaucoma , there is a gradual rise in the intraocular pressure sensation which cause damage to the retina . Damage to retina causes gradual progressive loss of visual sensation which is in the main peripheralvision losswhich with the line of disease slowly involves the central imagination .
The normal intraocular pressure is around 10 mm of Hg -21 mm of Hg .
How Long Does It Take To Go Blind From Glaucoma?
It is not true that a free burning gamy intraocular insistence always causes loss of visual sense . Almost in 10 to 20 % of the glaucomatous patient around the earth , with an intraocular pressure ranging between 21 to 24 mm of Hg tends to spring up peripheral loss of visual sense over a period of 10 years . Studies show that in a patient with an intraocular insistency of 25 mm of Hg to 28 mm of Hg , almost 50 % of the patient role under the study miss their vision and in people have intraocular pressure more than 30 millimetre of Hg almost 90 % of the patient lost their vision .
It is now well documented from the studies patient take in an intraocular pressure of 21 to 24 millimeter of Hg , will gradually build up to blindness from early glaucomatous changes within of period of average 13 - 15 twelvemonth .
Similarly , a affected role with the intraocular tenseness of the reach 25 to 28 mm of Hg will take an average of 7 - 8 twelvemonth . And patient with the intraocular pressure of more than 30 mm of Hg progressive to blindness in a period of modal 3 year .
In some recent written report figure that out of 10 , 4 patients with open - slant glaucoma develop sight loss one-sidedly within a year and out of 6 , 1 develop bilaterally .
It is found that in a sentence duet of average 10 years that one in every four patient lost their vision unilaterally and 1 in every 20 patient , bilaterally .
For newly name glaucoma patient role it is the risk of developing ocular impairment is the most of import . Glaucoma is secondly most important cause for the cecity all over the world and among various types of glaucoma open - slant glaucoma conduce the most .
The progression of the glaucoma is calculate by looking at the changes in the visual disc where there is a cupping of the disc which increases with the personnel casualty of retinal cells and with the furtherance of the technology and introduction of the visual coherency tomography , now we can measure ganglion cell loss and retinal nerve fibre layer thinning .
Tipping Point
It is the threshold item beyond which there is a sudden and rapid progression of the morphological changes and functional impairment and the visual field effect are clinically quite observable . The tipping point is found to be around 17 % of the total Retinal spunk fibre bed exit .
Chronic glaucoma is a major risk of exposure forvision red . There is no presenting pain and there is no seeming field red ink but the visual sense is damaged .
presently , with the availableness of received treatment for glaucoma only some of the patient still progress to vision loss . Unluckily the visual modality red ink in glaucoma is permanent . There is no standard preventive aesculapian discourse for glaucoma is available . The good way to prevent cecity by glaucoma is to have a regular optic examination .
Data from various discipline show that the medical and operative treatment currently available can slow down the speed of imaginativeness expiration and in the end its progression to the blindness .
Various regenerative strategies are being tried to rectify the imagination personnel casualty . The promoter of growth gene such as oncomodulin has shown some promising results in optic face positive feedback . Stem cell approaching also shows a convinced result in Glaucoma .
Vision loss associated with glaucoma is permanent . Changes to the optic disc and field of vision are permanent and are progressive in nature .
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