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Doctor insights on: Glaucoma Eye Pressure Readings

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In glaucoma can eye pressure readings vary if the same machine isn't used every time and there is a different doctor performing the reading?

In glaucoma can eye pressure readings vary if the same machine isn't used every time and there is a different doctor performing the reading?

Yes: Many variables affect pressure reading including the machine type, the method, the calibration, the operator, time of day, breathing and ocular perfusion, position, etc. ...Read more

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Dr. Robert Chang
1,018 doctors shared insights

Glaucoma (Definition)

Glaucoma refers to a group of eye conditions that lead to damage to the optic nerve, the nerve that carries visual information from the eye to the brain. In many cases, damage to the optic nerve is due to increased pressure in the eye, also known ...Read more


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Corneal thickness is 510+ 2. In glaucoma does that mean you add 2 points to my eye pressure reading of 15?

No: The more important way to judge the pressure in the eye is whether or not there is any evidence of damage from pressure on the optic nerve head. The corneal thickness is a separate measurement the shows whether there is or is not an increased risk of developing glaucoma. Your measurement of 510 means that you do have an increase risk to developing glaucoma. ...Read more

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Glaucoma w/30% nerve damage. Pressure reduced from 30 to 15. Cornea is 516 thick. Do i add 2 points to eye pressure reading because cornea is thin?

Glaucoma w/30% nerve damage. Pressure reduced from 30 to 15. Cornea is 516 thick. Do i add 2 points to eye pressure reading because cornea is thin?

Not really: The adjustments to pressure based on corneal thickness are largely out of favor today. The more important thing is to have regular pressure measurements by the same technique. If you went from 30 to 15 with treatment, you are doing very well. ...Read more

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My optometrist says i don't have damage but glaucoma specialist says i do. Who is right? Eye pressure readings and field test vary between offices

My optometrist says i don't have damage but glaucoma specialist says i do.  Who is right?  Eye pressure readings  and field test vary between  offices

Get third opinion: This is a case where i would normally side with the glaucoma specialist, but you will never be convinced you received the correct diagnosis. I would advise you seek a third and final opinion from another ophthalmologist. ...Read more

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Does increased eye pressure mean that I have glaucoma?

Maybe: Glaucoma means the pressure in the eye over time has caused damage to the optic nerve. Increased eye pressure is a risk factor for glaucoma but it does not necessarily mean you have it. Examination and evaluation by an eye md can help determine if you have glaucoma or are at risk of glaucoma and if treatment is needed. ...Read more

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Will I develop glaucoma if I have increased eye pressure?

Yes: Possibly so - other factors such as age and actual pressure readings will play a role in your specific risk for developing glaucoma. It would be wise to follow up with an eye specialist and understand your risk and recommendations for risk reduction through intra-ocular pressure control. ...Read more

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What are the causes of high eye pressure, besides glaucoma?

Various: Eye pressure can be falsely elevated (machine error, operator error, corneal scar, etc.), elevated due to thick central corneal thickness, high due to recent eye surgery (i.e. Retained viscoelastic, etc.), etc. However we commonly refer to high eye pressure as having glaucoma, but it's not always true since there are ocular hypertensives with high pressure that never develop glaucoma. ...Read more

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How often should you have eye pressure checked in glaucoma?

How often should you have eye pressure checked in glaucoma?

Per doc schedule: May return right away if iop very high if start new therapy may check in 1 mo if stable, may check every 3-4 mo if suspect, may check every 6-12 mo. ...Read more

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