Glaucoma risk factors: Difference between revisions
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==Overview== | ==Overview== | ||
== Risk factors== | |||
* People with a family history of glaucoma have about a six percent chance of developing glaucoma. | |||
* Diabetics and African Americans are three times more likely than caucasians to develop primary open angle glaucoma. | |||
* Asians are susceptible to angle-closure glaucoma, and Inuit have a twenty to forty times higher risk than caucasians of developing primary angle closure glaucoma. | |||
* Women are three times more likely than men to develop acute angle-closure glaucoma due to their shallower anterior chambers. | |||
* Use of steroids can also cause glaucoma. | |||
There is increasing evidence of ocular blood flow to be involved in the pathogenesis of glaucoma. Current data indicate that fluctuations in blood flow are more harmful in glaucomatous optic neuropathy than steady reductions. Unstable blood pressure and dips are linked to optic nerve head damage and correlate with visual field deterioration. | |||
A number of studies also suggest that there is a correlation, not necessarily causal, between glaucoma and systemic [[hypertension]] (i.e. high blood pressure). In normal tension glaucoma, nocturnal hypotension may play a significant role. On the other hand there is no clear evidence that vitamin deficiencies cause glaucoma in humans, nor that oral vitamin supplementation is useful in glaucoma treatment (Surv Ophthalmol 46:43-55, 2001). | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Revision as of 21:29, 22 August 2012
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Glaucoma risk factors On the Web |
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American Roentgen Ray Society Images of Glaucoma risk factors |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Risk factors
- People with a family history of glaucoma have about a six percent chance of developing glaucoma.
- Diabetics and African Americans are three times more likely than caucasians to develop primary open angle glaucoma.
- Asians are susceptible to angle-closure glaucoma, and Inuit have a twenty to forty times higher risk than caucasians of developing primary angle closure glaucoma.
- Women are three times more likely than men to develop acute angle-closure glaucoma due to their shallower anterior chambers.
- Use of steroids can also cause glaucoma.
There is increasing evidence of ocular blood flow to be involved in the pathogenesis of glaucoma. Current data indicate that fluctuations in blood flow are more harmful in glaucomatous optic neuropathy than steady reductions. Unstable blood pressure and dips are linked to optic nerve head damage and correlate with visual field deterioration.
A number of studies also suggest that there is a correlation, not necessarily causal, between glaucoma and systemic hypertension (i.e. high blood pressure). In normal tension glaucoma, nocturnal hypotension may play a significant role. On the other hand there is no clear evidence that vitamin deficiencies cause glaucoma in humans, nor that oral vitamin supplementation is useful in glaucoma treatment (Surv Ophthalmol 46:43-55, 2001).