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| Open Angle Glaucoma and Angle Closure Glaucoma |
The two major classes of glaucoma are Open-Angle Glaucoma (OAG) and narrow angle glaucoma.
If the aqueous will access the drainage angle, the glaucoma is thought as open angle eye disease. If the emptying angle is blocked and therefore the aqueous cannot reach it, the glaucoma is thought as narrow angle eye disease.
OAG Variations included: Primary-Open Angle Glaucoma (POAG), Normal-Tension Glaucoma (NTG), pigmentary eye disease, secondary glaucoma, pseudoexfoliation glaucoma and inherent glaucoma.
Variations of narrow angle glaucoma embody embody acute angle closure glaucoma, neovascular glaucoma and chronic angle closure glaucoma.
If the aqueous will access the drainage angle, the glaucoma is thought as open angle eye disease. If the emptying angle is blocked and therefore the aqueous cannot reach it, the glaucoma is thought as narrow angle eye disease.
OAG Variations included: Primary-Open Angle Glaucoma (POAG), Normal-Tension Glaucoma (NTG), pigmentary eye disease, secondary glaucoma, pseudoexfoliation glaucoma and inherent glaucoma.
Variations of narrow angle glaucoma embody embody acute angle closure glaucoma, neovascular glaucoma and chronic angle closure glaucoma.
The "angle" in each cases refers to the drainage angle within the eye that controls the outflow of the watery fluid (called aqueous) that’s regularly being made within the eye.
1. Primary open-angle glaucoma
This common kind of glaucoma step by step reduces your peripheral vision with no any symptoms. By the time you notice it, permanent injury already has occurred.
If your IOP remains high, the destruction caused by POAG will progress till tunnel vision develops, and you'll can only able to see only objects that area unit straight ahead. Ultimately, all vision is lost, causing blindness.
If your IOP remains high, the destruction caused by POAG will progress till tunnel vision develops, and you'll can only able to see only objects that area unit straight ahead. Ultimately, all vision is lost, causing blindness.
2. Acute angle-closure glaucoma
Also known as narrow-angle glaucoma, acute angle-closure glaucoma produces sudden symptoms like eye pain, headaches, halos around lights, expanded pupils, vision loss, red eyes, nausea and vomiting.
These signs represent a medical emergency. The attack might last for many hours, then return again for one more round, or it's going to be continuous without relief. every attack will cause progressively more vision loss.
These signs represent a medical emergency. The attack might last for many hours, then return again for one more round, or it's going to be continuous without relief. every attack will cause progressively more vision loss.
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| Eye with Glaucoma |
3. Normal-tension glaucoma
Like POAG, normal-tension glaucoma (also referred to as normal-pressure glaucoma, low-voltage glaucoma or low-pressure glaucoma) could be a kind of chronic glaucoma that may cause field of vision loss due to optic nerve damage. however in normal-tension glaucoma, the eye's IOP remains within the normal range.
Also, pain is unlikely and permanent harm to the eye's optic nerve may not be detected till symptoms like tunnel vision occur.
The reason for normal-tension glaucoma isn't notable. however several doctors believe it's associated with poor blood flow to the nervus opticus. Normal-tension glaucoma is a lot of common in those that are Japanese people, are female have a history of blood vessel disease.
Also, pain is unlikely and permanent harm to the eye's optic nerve may not be detected till symptoms like tunnel vision occur.
The reason for normal-tension glaucoma isn't notable. however several doctors believe it's associated with poor blood flow to the nervus opticus. Normal-tension glaucoma is a lot of common in those that are Japanese people, are female have a history of blood vessel disease.
4. Pigmentary glaucoma
This rare variety of eye disease is caused by impeding of the emptying angle of the eye by pigment that has broken loose from the iris, reducing the rate of binary compound outflow from the attention. Over time, an inflammatory response to the blocked angle damages the system.
You are unlikely to notice any symptoms with pigmentary glaucoma, although some pain and blurry vision could occur when exercise. Pigmentary glaucoma most often affects white males in their mid-30s to mid-40s.
You are unlikely to notice any symptoms with pigmentary glaucoma, although some pain and blurry vision could occur when exercise. Pigmentary glaucoma most often affects white males in their mid-30s to mid-40s.
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| Glaucoma Vision |
5. Secondary glaucoma
Symptoms of chronic glaucoma following a eye injury might indicate secondary glaucoma, that conjointly could develop with presence of sty, inflammation, a neoplasm or enlargement of the lens due to a cataract.
6. Congenital glaucoma
This inherited form of glaucoma is gift at birth, with eighty p.c of cases diagnosed by age one. These youngsters are born with slender angles or another defect within the system of the eye.
It's difficult to identify signs of congenital glaucoma, as a result of youngsters are too young to grasp what's happening to them. If you notice a cloudy, blurry, white, enlarged or projecting eye in your kid, consult your eye doctor. congenital glaucoma generally happens more in boys than in girls.
It's difficult to identify signs of congenital glaucoma, as a result of youngsters are too young to grasp what's happening to them. If you notice a cloudy, blurry, white, enlarged or projecting eye in your kid, consult your eye doctor. congenital glaucoma generally happens more in boys than in girls.
(Source : Types, Symptoms, Diagnosis and Treatment Glaucoma by John Berdahl, MD)