Best Eye Hospital for Cataract Surgery in Jalandhar – Innocent Hearts Eye Centre

Glaucoma Services

Home > Glaucoma Services

Glaucoma Services

The green ring outlining the gradual enlarging of optic nerve “cup” shows the progression of the Glaucoma disease

Glaucoma can be caused by increased pressure of the fluid in the eye. The inside of the eye contains fluid that is constantly flowing into and being drained out of the eye. If the drainage mechanism in an area called Trabecular meshwork gets blocked, fluid starts accumulating in the eye, exerting pressure inside the eye. This extra fluid that builds up in the eye presses against the optic nerve at the back of the eye, thus damaging parts of the optic nerve. This damage appears as gradual visual changes and then loss of vision, if it remains untreated.

TYPES OF GLAUCOMA

Chronic Open Angle Glaucoma
The most common type of glaucoma, known as chronic open angle (COAG) or primary open angle, occurs when the canals draining the eye of aqueous humor become clogged. This blockage can gradually increase pressure within the eye to damaging levels. No pain occurs, so individuals are usually unaware that these changes are occurring. There are no early signs or symptoms but over the years vision will be lost starting in the periphery and moving towards the central vision.
Acute Angle Closure Glaucoma

When eye pressure builds up rapidly, it is called acute angle-closure glaucoma.
This type of glaucoma commonly occurs in individuals who have narrow anterior
chamber angles. In these cases, aqueous fluid behind the iris cannot pass through
the pupil thus pushing the iris forward, preventing aqueous drainage through the
angle. It is as though a sheet of paper floating near a drain suddenly drops over
the opening and blocks the flow out of the sink. In cases of acute angle closure
glaucoma, one may experience blurred vision, halos around lights, deep pain
behind the eye, nausea, and vomiting. Nethradhama advises its patients to have
periodic eye examinations for early detection of glaucoma

RISK FACTORS FOR GLAUCOMA

High pressure alone does not mean that you have glaucoma. In Nethradhama we
put together many kinds of information to determine your risk for developing this
disease. The most important risk factors include:

• Age (Over 40 years
• Near-sightedness (Myopia)
• A family history of glaucoma
• Past injuries to the eyes
• A history of severe anemia or shock
• Diabetes/ Hypertension

In Innocent Hearts Eye Centre, we will weigh all of these factors before deciding whether you need treatment for glaucoma, or whether you should be monitored closely as a glaucoma suspect. Being glaucoma suspect means your risk of developing glaucoma is higher than normal, and you need to have regular examination to detect the early signs of damage to the optic nerve.

MYTHS AND TRUTHS ABOUT GLAUCOMA

Glaucoma is a highly misunderstood disease. Frequently, patients do not even realize that they are affected by the disease and rarely have an inkling about its severity. Here are the most common myths and truths about glaucoma :

Myth #1: Glaucoma is a disease that only happens to older people.
Truth #1:
Everyone is at risk for glaucoma from babies to elderly people. But, older people are at a higher risk for glaucoma. However babies (approximately 1 out of every 10,000 babies are born with glaucoma) and young adults can also get glaucoma.

Myth #2: Glaucoma is curable.
Truth #2:
Glaucoma is not curable, however, it is manageable. But first it must be diagnosed. Often glaucoma can be managed with medication and/or surgery. This means that further loss of vision may be halted. However, glaucoma is a chronic disease that must be treated for lifetime.

Myth #3: There are symptoms that will warn you of glaucoma.
Truth
With open angle glaucoma, the most common form, there are virtually no  symptoms. There is usually no pain involved with the rise in eye pressure. Loss of vision begins with peripheral or side vision. This type of vision loss can be easily compensated for (by turning the head to the side) and may not be noticed until significant vision is lost. The best way to protect your sight from glaucoma is to be tested so that if you have glaucoma, treatment can begin immediately.

Myth #4: Glaucoma does not cause blindness.
Truth
Glaucoma can infact cause blindness if it is left untreated. And unfortunately, many patients do not realise that are afflicted with glaucoma until they have lost nearly all vision.

DIAGNOSTIC FACILITY

Tonometry

Regular glaucoma check-up in Nethradhama includes a detailed history and ocular examination.

The technique of measurement of pressure within the eye (Intra ocular pressure -(IOP/IOT) is called tonometry. This is very important since IOP is one of the indicators of Glaucoma. Tonometry is recommended in everyone over the age of 40, family history of glaucoma, Myopia, Diabetes and any history of previous ocular injuries. This technique can be performed with either applanation or non- contact tonometer.

Ophthalmoscopy

Ophthalmoscopy is used to examine the inside of the eye, especially the optic nerve. In a darkened room, the doctor will examine your eye by using an ophthalmoscope (an instrument with a small light on the end). This helps the doctor look at the shape and color of the optic nerve.
If the pressure in the eye is not in the normal range, or if the optic nerve looks unusual, then one or two special glaucoma tests will be done. 3-Dimensional examination of optic disk too is done.

Visual Field Examination

HUMPHREY OPTOPOL VISUAL FIELD ANALYSER

The perimetry test is also called a visual field test. During this test, you will be asked to look straight ahead and then indicate when a stationary light appears in the field of vision. This helps draw a “map” of your field of vision.


This is a non-invasive computerised test which takes about 10-20 minutes to perform and gives information regarding optic nerve damage due to glaucoma.

Glaucoma and Optic Nerve Head Digital Photography

The photographs below demonstrate various degrees of optic nerve head cupping caused by increased intraocular pressure

Normal disk photo

Early stage glaucoma

Moderate stage glaucoma

Advanced stage glaucoma

Optical Coherence Tomography (OCT)

Optical coherence tomography is a new, noninvasive, noncontact, imaging technology capable of early detection of glaucoma through it’s ability to evaluate the nerve cells damaged in glaucoma.