- Stages of glaucoma - the types of disease
- Acute glaucoma and pigmentary
Acute glaucoma
In patients with angle-closure glaucoma may develop an acute attack of glaucoma - it is the result of the rapid increase in intraocular pressure.
Acute glaucoma
Glaucoma - a perspective possible blindness
most often occurs in the elderly, especially - have farsightedness. In addition, this violation is more common among women than among men.
Symptoms of an acute attack of glaucoma are usually severe pain in the eyes, nausea and vomiting. Whites of the eyes, patients may become reddish. Often there is a decrease in visual acuity; Some patients see halos around lights (individually, without pain and other symptoms, it is not a sign of acute glaucoma).
How dangerous is an acute attack of glaucoma?
If you suspect an acute glaucoma as soon as possible, seek medical help. If the patient does not receive timely treatment, acute glaucoma, within one or two days may lead to complete loss of vision.
Safety measures
Patients with narrow-angle glaucoma
Angle-closure glaucoma - possibly severe course of the disease
advised to avoid medications that include pseudoephedrine, phenylephrine, chlorpheniramine, diphenhydramine. It is believed that they may provoke an acute attack of glaucoma. For patients with open angle glaucoma
Open-angle glaucoma - occurs often goes unnoticed
these substances harmless. They are usually not dangerous, and for those patients with narrow-angle glaucoma who were treated by laser surgery.
Steroids (cortisone, hydrocortisone
Hydrocortisone - a drug that could save the life of the patient
, Prednisolone) may also lead to a sharp increase in intraocular pressure, and cause an acute attack of glaucoma. Before taking any of these medications, be sure to consult with your doctor.
Treatment
Acute Glaucoma is usually treated with a laser. A laser beam the doctor is doing in the iris microscopic opening through which aqueous humor flows, whereby intraocular pressure is lowered rapidly. This operation is painless (patients previously give a sedative and injected anesthetic), and does not lead to vision loss.
Patients who are at increased risk of acute glaucoma (such as those with congenital closure glaucoma) such an operation can be carried out for the prevention of acute attacks. This makes sense because, after symptom onset severe damage to the visual system can be applied only for a few hours - before the patient has time to receive medical care. In addition, some patients seek treatment too late, because they can not to recognize the beginning of an attack of acute glaucoma (many people suffer pain, for example, because they can not or do not want to leave work in the middle of the day, and someone just lives very far from the hospital where you can get adequate treatment).
Restore lost nerve fibers is not possible.
In rare cases, acute attacks of glaucoma can occur even in patients who had surgery, so the appearance of the relevant symptoms it is necessary to consult a doctor.
Pigmentary glaucoma
Disorder in which the pigment is detached from the rear surface of the iris, and redistributed in eye structures called pigment dispersion syndrome. The pigment can be deposited in the trabecular meshwork, causing increased intraocular pressure - this is pigmentary glaucoma. Pigment dispersion syndrome often starts to develop already in the second decade of life, and early optic nerve damage associated with them caused by glaucoma can appear long before he starts to go on the survey to the ophthalmologist.
Pigmentary glaucoma occurs in approximately 35% of patients with the syndrome of the pigment dispersion. For this reason, all patients who have been diagnosed pigment dispersion syndrome, need to have regular checkups to timely detect glaucoma. Patients who have no visual impairment (including peripheral vision) and damage to the optic nerve, and eye pressure is within the normal range is usually enough to be surveyed once a year. If the patient is already there any disorders associated with glaucoma, may require more frequent testing.
To control the intraocular pressure of glaucoma when the pigment is usually more difficult than in open-angle glaucoma.
However, most patients with the age of disease symptoms become less pronounced - is associated with a reduced production of the pigment.
Some patients with pigmentary glaucoma can occur a sharp increase in intraocular pressure - the reason is the increase in pigment, falling to the trabecular meshwork due to taking certain medications or intense exercise. Patients who are seriously involved in sports, to prevent the increase in IOP can be assigned to drugs that lower blood pressure.
For the treatment of pigmentary glaucoma typically uses the same drug as that in other types of glaucoma: miotics, beta-blockers, prostaglandins, carbonic anhydrase inhibitors, and others. In some cases also used iridotomy, laser trabeculoplasty, and other types of surgery.