This particular info was actually created to aid people and also their relatives seek basic facts pertaining to glaucoma. A sight services doctor who has inspected the individual’s sights and also knows with his/her case history is the most desired expert so as to reply to distinct concerns.
What is Glaucoma?
Glaucoma is a bunch of health problems which impair the eyeball’s ocular nerve as well as may can lead to visual modality reduction as well as loss of sight. Fortunately, with early discovery and also treatment method, one may oftentimes secure your sights against serious sight loss.
The ocular nerve
Whether one develop glaucoma depends on the level of pressure your visual nerve may tolerate without being damaged. This level is different for each person. That’s why a comprehensive dilated sight exam is crucial. It could help your vision services specialist determine what level of sight pressure is normal for individuals.
Can I develop glaucoma without an increase in my eyeball pressure?
The ocular nerve
The visual nerve is a bundle of more than 1 million nerve fibers. It connects the retina to the brain. (See diagram above.) The retina is the light-sensitive tissue at the back of the sight. A healthy ocular nerve is necessary for good visual modality.
How does the ocular nerve get damaged by open-angle glaucoma?
Fluid pathway is shown in teal.
Might I develop glaucoma if I have increased vision pressure?
Several large studies have shown that sight pressure is a major risk factor for ocular nerve damage. In the front of the sight is a space called the anterior chamber. A clear fluid flows continuously in and also out of the chamber and also nourishes nearby tissues. The fluid leaves the chamber at the open angle where the cornea and also iris meet. (See diagram below.) When the fluid reaches the angle, it flows through a spongy meshwork, like a drain, as well as leaves the vision.
In open-angle glaucoma , even though the drainage angle is “open”, the fluid passes too slowly through the meshwork drain. Since the fluid builds up, the pressure inside the eyeball rises to a level that may damage the visual nerve. When the ocular nerve is damaged from increased pressure, open-angle glaucoma-and eyesight loss– may result. That’s why controlling pressure inside the vision is important.
Another risk factor for visual nerve damage relates to blood pressure. Thus, it is important to also make sure that your blood pressure is at a proper level for your body by working with your medical doctor.
Yes. Glaucoma may develop without increased eyeball pressure. This form of glaucoma is called low-tension or normal-tension glaucoma. It is a type of open-angle glaucoma.
Who is at risk for open-angle glaucoma?
Not necessarily. Not every person with increased sight pressure will develop glaucoma. Some people could tolerate higher levels of eyeball pressure better than others. Also, a certain level of vision pressure may be high for one person but normal for another.
Anyone might develop glaucoma. Some people, listed below, are at higher risk than others:
African Americans over age 40
Everyone over age 60, especially Mexican Americans
People with a family history of glaucoma
At first, open-angle glaucoma has no symptoms. It results in no pain. Eyesight stays normal. Glaucoma could develop in one or both sights.
A comprehensive dilated eyeball exam may reveal more risk factors, such as high eyeball pressure, thinness of the cornea, and also abnormal ocular nerve anatomy. In some people with certain combinations of these high-risk factors, prescribed medications in the form of eyedrops reduce the risk of developing glaucoma by with regards to half.
Without therapy, people with glaucoma will slowly lose their peripheral (side) visual sense. As glaucoma remains untreated, people may miss objects to the side and also out of the corner of their eyeball. They seem to be looking through a tunnel. Over time, straight-ahead (central) visual sense may decrease until no visual modality remains.
Normal Visual sense
The same scene as viewed by a person with glaucoma.
How is glaucoma detected?
Glaucoma is detected through a comprehensive dilated eyeball exam that includes the following:
Tonometry is the measurement of pressure inside the vision by using an instrument called a tonometer. Numbing drops may be applied to your eyeball for this test. A tonometer computes pressure inside the sight to detect glaucoma.
Before one begin glaucoma medical treatment, divulge your vision services specialist relating to other pharmaceuticals and also supplements that one are taking. Sometimes the drops might interfere with the way other pharmaceuticals work.
Help make certain your vision services expert shows people how to put the drops into your sight. For tips on using your glaucoma eyedrops, see the inside back cover of this booklet.
Glaucoma medicinal drugs need to be taken regularly as directed by your sight services expert. Most people have no problems. However, some medicinal drugs could trigger headaches or other side effects. For example, drops may lead to stinging, burning, as well as redness in the visions.
No. There is no cure for glaucoma. Sight lost from the disorder could not be restored.
Medicines. Medicines, in the form of eyedrops or pills, are the most common early therapy for glaucoma. Taken regularly, these eyedrops lower sight pressure. Many prescriptions lead to the sight to make less fluid. Others lower pressure by helping fluid drain from the sight.
Visual acuity test. This eyeball chart test determines how well individuals see at various distances.
Tonometer gauges tension.
A tonometer determines pressure inside the eyeball to detect glaucoma.
Pachymetry is the measurement of the thickness of your cornea. Your vision treatment specialist applies a numbing drop to your sight and also uses an ultrasonic wave instrument to evaluate the thickness of your cornea.
Can glaucoma be cured?
Visual field test. This test evaluates your peripheral (side visual sense). It helps your sight services expert mention if people have lost peripheral eyesight, a sign of glaucoma.
Immediate therapy for early-stage, open-angle glaucoma could delay progression of the condition. That’s why early diagnosis is essential.
Glaucoma treatment options include medicinal drugs, laser trabeculoplasty, conventional surgery, or a combination of any of these. While these treatment methods may save remaining vision, they do not improve sight already lost from glaucoma.
Because glaucoma typically has no symptoms, people may be tempted to stop taking, or may forget to take, their prescription medication. People need to use the drops or pills provided that drops aid handle your vision tension. Routine application is important.
Dilated eyeball exam. In this exam, drops are placed in your visions to widen, or dilate, the pupils. Your eyeball services expert uses a special magnifying lens to check your retina and also ocular nerve for signs of damage as well as other eyeball problems. After the exam, your close-up visual sense may remain blurred for several hours.
Many prescription medications are available to treat glaucoma. If people have problems with one prescription, mention to your eyeball services practitioner. Medical treatment with a different dose or a new prescribed medication may be possible.