Glaucoma Causes

Glaucoma causes

        Glaucoma is a disease of the eye. It is characterized by increased fluid pressure within the eye. This pressure is due to faulty drainage of aqueous humor out of the eye. There is no relation to blood pressure: we can have a blood pressure at 10.6 and glaucoma to. Glaucoma may occur acutely, or otherwise without symptoms. That is why the pressure measurement is routinely made by the ophthalmologist. The main risk of glaucoma is blindness. The mechanism consists in a crash in the intraocular pressure, the vessels that supply the optic nerve. The result is a lack of irrigation and atrophy.

        The diagnosis of glaucoma is a systematic review of eyestrain normally less than 20 millimeters of mercury, the eye is most often asymptomatic. More rarely, glaucoma expresses a very intense orbital pain, sometimes accompanied by nausea. It may also be a red eye, a dilated pupil, cloudy cornea or unfortunately sometimes a loss of sight.

        There is congenital glaucoma (from birth), which is rare, and glaucoma occurring spontaneously later, or accompanying diseases or injuries of the eyeball. It classifies glaucoma in open-angle glaucoma and angle closure glaucoma. A number of drug are listed in glaucoma. So always talk to the doctor. The drug listed pertain only to angle closure glaucoma.

        In most cases, glaucoma occurs as a result of increased pressure within the eye, called intraocular pressure. Normally, it should not exceed 21 millimeters of mercury (mm Hg). However, we note that in nearly one in three of the symptoms of glaucoma occur even if the pressure in the eye is normal. A poorer blood supply to the optic nerve caused by atherosclerosis in the vessels that supply the nerve could be involved. That intraocular pressure is high or not, the treatment remains the same.

Glaucoma prevalence

        In Canada, 1% of people aged over 40 are affected. This proportion rises to 5% in people aged over 70 years, and 10% beyond 80 years. Glaucoma can still occur at any age.

Glaucoma other causes

        Often, it is unclear why glaucoma appears. Heredity and certain anatomical predisposition may play a role.
Sometimes glaucoma is due to a specific problem, such as:

• An eye injury;
• Another eye problem: diabetic retinopathy, cataracts, pronounced myopia, chronic uveitis;

        Taking certain medications also increases the risk of glaucoma. This is the case, of the corticosteroids administered directly into the eyes. Corticosteroids in asthma pump or cream or ointment for eczema have no effect on glaucoma.