Glaucoma also known as “Silent Thief of Sight” is the eye condition in which optic nerve undergoes slow degeneration. It rarely shows any symptoms at initial stage as there will not be even any pain or redness of the eye.
Glaucoma is a disease that damages your eye’s optic nerve. It usually happens when fluid builds up in the front part of your eye. That extra fluid increases the pressure in your eye, damaging the optic nerve.
Here are the signs of an acute angle-closure glaucoma attack:
- Your vision is suddenly blurry
- Severe eye pain
- You have a headache
- You may feel sick to your stomach (nausea)
- Throw up (vomit)
- You see rainbow-colored rings or halos around lights
Tests to detect Glaucoma
To be safe and accurate, you should undertake these following 5 tests regularly to detect Glaucoma at an early stage:
TONOMETRY – This test examines inner eye pressure and is done with the help of an instrument called tonometer. The air is puffed in eyes and the pressure is calculated according to that. This test will not take much of your time and is painless too.
GONIOSCOPY – This test examines the angle where iris meets cornea in the eye. The instrument helps in viewing the front part of the eye and to determine whether the angle is narrow or open. This test also helps in determing if any excessive pigment is blocking the drainage of humor inside the eye.
PACHYMETRY – The thickness of the cornea is checked with this test. Doctor uses ultrasonic wave instrument called pachymeter. If the central cornea thickness is thin then it is a strong predictor of Glaucoma.
VISUAL FIELD TEST – This test is also known as Perimetry and checks the complete vision of the eye. It measures the entire area seen by the person forward looking and sideways. The doctor will be able to evaluate in this if your peripheral vision is getting lost.
OPHTHALMOSCOPY – Also known as Dilated eye exam examines the shape and color of the optic nerve. It gives the complete evaluation of interior of the eye. This test will help in detecting if you have Glaucoma and of you have so how extensive it is.
There are many other tests which helps in early detection of Glaucoma like OCT (Optic Coherence Tomography), etc. You should always keep tonometry and opthalmoscopy in your routine eye tests.
Treatment for Glaucoma
Glaucoma is usually controlled with eyedrop medicine. Used every day, these eye drops lower eye pressure. Some do this by reducing the amount of aqueous fluid the eye makes. Others reduce pressure by helping fluid flow better through the drainage angle.
There are two main types of laser surgery to treat glaucoma. They help aqueous drain from the eye. These procedures are usually done in the ophthalmologist’s office or an outpatient surgery center.
This surgery is for people who have open-angle glaucoma. The eye surgeon uses a laser to make the drainage angle work better. That way fluid flows out properly and eye pressure is reduced.
This is for people who have angle-closure glaucoma. The ophthalmologist uses a laser to create a tiny hole in the iris. This hole helps fluid flow to the drainage angle.
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