Glaucoma Services

Glaucoma is a disease of the eyein whichthe nerve connecting the eye to the brain is damaged, usually due to high eye pressure.

The most common type of glaucoma (open-angle glaucoma) often has no symptoms other than slow vision loss.

Angle-closure glaucoma, although rare, is a medical emergency and its symptoms include eye pain with nausea and sudden visual disturbance.

DIAGNOSTIC ( IMAGING ) AND TREATMENT( MEDICAL AND SURGICAL SERVICES ) AVAILABLE AT NETRABHAWAN

Commonly asked questions ?

BGlaucoma, otherwise known as “Kala Motia” is an eye disease in which there is an increase in pressure inside the eye.

Just as some people have high blood pressure, in the same way a glaucoma patient has high eye pressure.

If the eye pressure remains high for a long time it damages the optic nerve which carries the light sense from the eye to the brain. This damage to the nerve is irreversible and leads to permanent and incurable blindness.

Glaucoma is usually asymptomatic or is associated with very mild symptoms which the patient often tends to ignore. Some of the early symptoms include:

  • Frequent change of reading glasses
  • Mild eye ache or headache towards the evening after a day’s work.
  • Seeing rainbow colored haloes of light around a bulb associated with slight decrease in vision.
  • Inability to adjust one’s vision on entering a dark room. ”
  • Difficulty in focusing on close work.
  • In advanced cases, there is a loss of side vision, while the central vision remains good.
  • SYMPTOMS DUE TO GLAUCOMA

The following are at greater risk of developing glaucoma-

  • Presence of glaucoma in other family members
  • Increasing age – above 40 years
  • Thyroid disease o Patients who are on long term steroid therapy for other diseases such as asthma, arthritis etc.
  • Previous eye injury or surgery orHypermetropia (farsightedness)
  • Damage due to glaucoma may be more severe in those patients who have associated diabetes, widely fluctuating blood pressure and myopia.

The following are some of the ways of diagnosing glaucoma-

Vision testing

Since glaucoma more often affects the side vision, the central vision may be retained till a very advanced stage. It is important to remember that a good central (straight ahead)vision test may mislead a glaucoma patient about theseverity of glaucoma and the extent of damage to the optic nerve.s

VISION OF PATIENT BEING TESTED

Measurement of eye pressure

This is done by tonometry (non-contact/applanation). This helps your doctor to determine how high your pressure is and how well the medicine is controlling it.

EYE PRESSURE BEING MEASURED

Evaluation of optic nerve damage

By ophthalmoscopy and optic nerve photography.

DIGITAL FUNDUS PHOTOGRAPY

Visual field examination

This test detects defects in your central and peripheral field of vision.

PERIMETRY ( VISUAL FIELD ANALYSIS BEING PERFORMED)

Retinal Nerve Fiber Layer Analyzer / OCT

These special tests measure the thickness of the nerve fibre layer and helps your doctor detect glaucoma at a very early stage.

REPORT DEPICTING RETINAL NERVE FIBRE LAYER ANALYSIS

  • After the age of 40 years, one should get an eye check up for glaucoma every 3 to 4 years even if there are no symptoms.
  • If a family member has glaucoma, if you have diabetes, if you are on long term systemic steroids for some other disease, or if you have suffered a blunt eye injury in the past, you must get your eyes checked every 1 to 2 years.

Medical treatment: –

Your doctor will prescribe you certain medication (eye drops and tablets) so as to lower your eye pressure which must be taken regularly as directed by the ophthalmologist. You should not stop medicines even if you do not have symptoms.

A regular follow up, as advised by your doctor, is mandatory.

As damage to nerve caused by glaucoma cannot be reversed, the aim of the treatment is to prevent or reduce further damage to the optic nerve. The first step to do that is to lower the eye pressure. The three modalities of treatment are:-

ANTI GLAUCOMA DROPS

Laser treatment: –

If glaucoma is not controlled with the help of medicines, if the side effects of the medicines are not well tolerated and the patient is non compliant, or cannot afford the cost of the medicines, the second option is LASER TREATMENT. (example being YAG Laser iridotomy for angle closure glaucoma/ selective laser trabeculoplasty for open angle glaucoma.)

SELECTIVE LASER TRABECULOPLASTY FOR OPEN ANGLE GLAUCOMA BEING PERFORMED

MECHANISM OF LASER BEAM BEING TRANSMITTED AND ACTING AT TRABECULAR MESHWORK OF THE EYE TO INCREASE THE AQUEOUS OUTFLOW AND DECREASE EYE PRESSURE.

Operative procedures
(Glaucoma Filtering Microsurgeryeg. Trabeculectomy or “By-pass” surgery of eye)

Operation for glaucoma is the only option left for patients in whom the eye pressure is not controlled with medication or laser. It is also the treatment of choice in non-compliant patients, and in infants and children with glaucoma. Filtering microsurgery involves creating a drainage hole with the use of a small surgical tool, to bypass the blockage in the eye’s trabecular meshwork (the eye’s drainage system). This opening helps increase the flow of fluid out of the eye and thereby reduce the eye pressure.

TRABECULECTOMY SURGERY BEING PERFORMED

MECHANISM OF AQUEOUS OUTFLOW AFTER TRABECULECTOMY SURGERY

If you Have Any Questions Call Us On 0562 401 3731