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What is Tonometry Test?
Tonometry is a quick and gentle diagnostic test that measures the pressure inside the eye ( intraocular imperativeness ( IOP ) . It is done to mold the risk of glaucoma .
Glaucomais a disease in which the optic heart of the centre is gradually damage . This results in expiration of imagination . This disease is often tie in with an increase in eye pressure .
According to the American Association of Opthalmology ( AAO ) , glaucoma is a leading cause of blindness in adults over 60 years of age.(1 )
identify the center pressure can help foreclose cecity from glaucoma . It can protect the eyesight and slow downvision going .
Goldmann applanation is the most common eccentric of tonometry test .
Who Needs Tonometry Test?
A tonometry test is send word to a person if the doctor suspects the risk of glaucoma .
According to AAO , the danger of glaucoma step-up in the following conditions:(2 )
Tonometry test is also prescribed to those who are live :
All the above symptoms could signal glaucoma .
How is Tonometry Test Done?
Before the Tonometry psychometric test , the doctor put numbness eye drops , so that the person does n’t finger anything contact it .
Once the middle are numb , a small comic strip of paper containing the orange dyestuff is bear upon on the surface of the eye to stain it . This helps in increase the accuracy of the tonometry examination .
After this , a auto known as a slit lamp is put in front of the person where he set his chin and forehead on the support provided . The lamp is then moved towards the eye till the tip of the tonometer probe touches the cornea .
The tonometer can discover optic insistence by flattening the cornea just a chip . The doctor adjusts the tension till they get a right interpretation .
Tonometry is a dependable procedure . There is a picayune risk of the cornea getting scratched when the tonometer touches the eye . If it encounter the eyes ordinarily heals in a few solar day .
Tonometer Test Result
A normal test intend the pressure level in the eye is normal and there is no risk of glaucoma or any other press - refer eye job .
According to the Glaucoma Research Foundation , 12 - 22 mmHg is the normal eye pressure.(3 )
If the trial shows a reading of 20 mmHg , it may suggest that you may have glaucoma or pre glaucoma . The MD might do further testing to confirm the diagnosis .
The doctor may keep a close watch on the symptoms if eminent pressure in the eye is detected . He may also advise regular testing . He might also order center drops to put in the eyes every day to bring down the pressure level . These fall might protect the optical nerve from succeeding equipment casualty in a long run .
