||A Department for comprehensive Glaucoma workup.
||A CARLZEISS - HUMPHREY FIELD ANALYZER, Applanation tonometer and
stereoscopic Optic Disc examination.
||All Glaucoma interventions i.e. YAG Iridotomy Trabeculectomy
& Combined surgery offered.
Glaucoma is a group of eye diseases in which the pressure of
fluid within the eye gradually increases to a level not tolerated by the
sensitive tissues of the eye. The opticnerve, which carries visual images
to the brain, is susceptible to damage from glaucoma. Such damage is
irreparable, resulting in permanent loss of vision and complete blindness.
Rarely, a weakly, structured optic nerve or poor blood circulation in the
back of the eye can also cause glaucoma-like damage to the optic nerve,
even if eye pressures are normal.
There is a fluid filled chamber in front of the eye called
the anterior chamber. It is filled with aquous humour, which bathes and
nourishes the tissues of the eye. For reasons yet unknown, if the drainage
of the eye is restricted, pressure builds up within the eye. Unless this
pressure is controlled by appropriate treatment, it causes irreversible
damage to the optic nerve and other parts of the eye causing a permanent
loss of vision.
likely to get glaucoma?
Glaucoma is one of the leading causes of blindness in
India. Based on various population sample studies, about 3 percent
of the general population have some form of glaucoma.
Older individuals over
the age of 40 are more likely to have glaucoma, but people of all age
groups including newborn infants may have glaucoma.
Individuals with myopia, diabetes, systemic hypertension and family history of glaucoma have an
are the symptoms of glaucoma?
Most types of glaucoma can cause significant visual loss
without any symptoms. Until advanced, vision stays normal and there is no
pain or redness of the eye. Hence, a periodical eye check-up of all
individuals is desirable to exclude the possibility of glaucoma. However,
if glaucoma progresses without adequate treatment, the following symptoms
may occur in some individuals:
Pain around the eyes when
coming out from darkness (e.g., as soon as the person comes out of a
Colored halo ring seen
around the bulbs, especially during morning and nights
Frequent changes of
reading glasses, headache, pain and redness of the eyes.
Reduced vision in dim
illumination and during nights
Gradual decrease of side
vision with progression of glaucoma
Blurring of vision
A simple test with a device called the tonometer measures
pressure within the eye. This is performed after applying local
anaesthetic eye drops that
numb the eye. It does not cause pain or irritation. This test alone cannot
detect all glaucomas. The back of the eye should be inspected to view the
optic nerve after dilating the pupils. Side vision is examined
by a computer-assisted, simple test called perimetry (visual field
Glaucoma cannot be cured. The loss of vision that already
exists cannot be recovered. However, appropriate treatment and regular
follow-up can preserve residual vision from further damage. Earlier the
diagnosis, better is the chances of arresting the progression of glaucoma.
Medication: Several drugs are available to reduce fluid formation within the eye or promote their
drainage from the eye. For most people with
glaucoma regular use of medications will control the increased fluid
pressure. However, in some, drugs may stop working after a period of time.
In this situation, the ophthalmologist can help by adding or changing
medication or by choosing another type of treatment: laser or surgical
methods. Periodical eye examination are therefore essential to ensure that
the medications are working.
In some type of glaucomas, called angle closure glaucoma,
laser treatment is used to reduce eye pressure. This is a simple
out-patient procedure which uses a strong beam of light to relieve the
In open angle type glaucomas, laser treatment is applied only if various
medication fail to control the fluid pressure. Medication needs to be
In some persons with glaucoma, medical or laser treatment
is insufficient to arrest glaucoma and surgery is indicated. But this
treatment option has its risks and Limitations and is reserved as
treatment of last resort. Even after surgical treatment, individuals with
glaucoma should continue periodical check-ups by an ophthalmologist, to
ensure adequate control of eye pressures.