Glaucoma is an center condition have gradual vision red due to harm to ocular nerve , which get increment in intraocular insistence . Glaucoma , if will untreated will uphold to damage optic nerve and ultimately lead to permanent expiration of imagination blindness . It is the second lead cause of permanent cecity across the world , the first being cataract .
Glaucoma is because of increase pressure in the eye leading to irreversible optic nerve equipment casualty , which is extremely susceptible to increased pressure . Glaucoma can also be find oneself in people with normal intraocular pressure due to decreased roue flow rate to the optic nerve . The other causes that might result to glaucoma are injury to the heart , inflammatory circumstance , severe middle infection , blocked stock watercraft in the centre , elevated blood pressure , eye shed that cause dilatation and on occasion sure eye surgeries . The risk factors for glaucoma include syndicate history of glaucoma , African - American , African or Asian ethnicity , long time over 40 age , history of steroid manipulation , other optic conditions such asmyopiaorhyperopiaanddiabetes .
What Are The Types Of Glaucoma?
There Are Commonly Two Types Of Glaucoma :
overt - slant glaucoma is the most usual type of glaucoma . This is a chronic type of glaucoma and its frequency increases with age . This is due to chronic fluid build - up within the oculus due to gradual clogging of the drainage system . This type of glaucoma is asymptomatic and there is peripheral loss of imaginativeness , which is undetected in the former stages as there are no symptom .
Angle - closure glaucoma is less rough-cut character of glaucoma and can be acute as well as chronic . In this , there is difficultness in drainage of aqueous humour due to decrease angle between iris and cornea lead to increased intraocular air pressure . This might also be related to other optic conditions such ascataractor hyperopia .
Other types of glaucoma include inborn glaucoma , secondary glaucoma and normal stress glaucoma .
Can Glaucoma Cause Sensitivity To Light?
Initially , glaucoma is symptom less and as it go on will lead to peripheral vision loss that might not be detected in early stages . Other symptoms when present includeeye pain sensation , worry , imaginativeness loss , visual blurring , red of the eye , halos around lights , corneal vapourousness , nausea , vomitingand narrowed vision ( burrow vision ) . Glaucoma can also causelight sensitivity or photophobia .
Light sensitiveness and blaze can make outdoor activities and driving hard for a affected role with glaucoma . Patients with glaucoma can experience soreness from sunshine , fluorescent fixture / incandescent lights and/or halogen lights that are used in elevator car headlight . Miotics ( medicament for glaucoma ) can also cause glare problems in glaucoma patients as they press student .
Eye Protection in Patients With Glaucoma
As photophobia and brilliance are common in patient with glaucoma , it becomes mandatory to protect eyes from certain promiscuous source . It is advised to rest the eye after light exposure and to ward off sitting in front of TV or computer screens for farseeing periods . center drops and warm compress can also be used to alleviate symptoms of photophobia / light predisposition .
When going out in the sun or driving it is good to use appropriate sunglasses to protect eyes from ultraviolet light damage and also to belittle spotlight and radiosensitivity . A glaucoma specialist can be consulted when buy appropriate sunglasses , which includes complete ultraviolet illumination absorption of up to 400 millimicron , using mirror / metal coating sunglass ( for high glare situations ) , polarise sunglass ( helpful in driving , snow-clad or watery environment as it fall think over glare ) , gradient and photochromic lenses .
Light sensibility and glare makes it difficult for glaucoma patients to drive . They can use lightly tint such as yellow / amber glasses at night and darker genus Lens during the daytime to beat back . If these tinted glasses do not facilitate with limelight then glaucoma patients should head off driving . drive is also dangerous for glaucoma patients if there is loss of peripheral vision , or there is blurred vision , increased radiosensitivity or there are close / missed vehicular accidents then the patient need to limit his / her driving . Patients should also get their eye evaluated and screened further .
Also Read :
