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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.

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Dr. Robert Chang
1,031 Doctors shared insights

Glaucoma (Definition)

A condition that causes damage to your eye's optic nerve and gets worse over time. It's often linked to a buildup of pressure inside your eye. Without treatment, glaucoma can cause total permanent blindness ...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?

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.

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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.

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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.

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I've been diagnosed with glaucoma. Thirty years ago I had a problem with chronic eye infections. I was also treated for high intra-ocular eye pressure readings. Is it even a remote possibility that the eye infections affected the drainage systems of the

I've been diagnosed with glaucoma. Thirty years ago I had a problem with chronic eye infections. I was also treated for high intra-ocular eye pressure readings. Is it even a remote possibility that the eye infections affected the drainage systems of the

No,: No, this is very unlikely, unless the infections were actually a form of inflammation inside your eye, known as uveitis or iritis. The drainage system that is involved in pressure control of the eye are inside the eye, and eye infections generally affect the inside of the eye.

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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.

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Will I develop glaucoma if I have increased eye pressure?

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.

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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.

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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.

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What are the causes of high eye pressure other than glaucoma?

Many things: Glaucoma is caused by high intraocular pressure. Some people can have high pressures (ocular hypertension) and not have developed glaucoma yet. Many things can increase intraocular pressure including impaired "drainage channels", neovascularization, inflammation, and impaired venous outflow. In order to determine the cause, a complete eye exam with an ophthalmologist would be required.

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Is there anything you can do to reduce glaucoma eye pressure natrually?

Is there anything you can do to reduce glaucoma eye pressure natrually?

Nothing known: Eye pressure does not respond to any known natural product. If your pressure is elevated you need to have an ophthalmologist follow you and keep your vision safe.

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Is the meaning of increased eye pressure is same as consisting glaucoma?

Is the meaning of increased eye pressure is same as consisting glaucoma?

No: Not all increased eye pressure results in glaucoma. Ocular hypertension is considered a glaucoma suspect and is followed until progressive optic nerve damage is detected, which can be a different pressure for different patients. Various ethnicities define elevated eye pressure with different cutoffs.

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I'd like to know the minimum and maximum eye pressure. At what pressure is glaucoma indicated?

I'd like to know the minimum and maximum eye pressure. At what pressure is glaucoma indicated?

0-70: Minimum 0 mmhg when the eye is completely collapsed and too much fluid is exiting the eye for the amount made. Maximum somewhere around 70 mmhg since eventually the eye can't make any more fluid (ischemic ciliary body). With repeated injections, you may be able to make the eye pressure higher. Glaucoma is when the pressure causes retinal ganglion cell loss (a different number for everyone).

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If my eye pressure has come out to be 24, is it for sure that I have glaucoma. If yes, then how can it be treated.?

If my eye pressure has come out to be 24, is it for sure that I have glaucoma. If yes, then how can it be treated.?

Not definitive: Glaucoma is a condition in which the eye pressure exceeds the ability of the circulation in the back of the eye to withstand it. A pressure of 24 is normal for some. If you have no field loss, thick corneas and healthy looking discs, then you probably have nothing to worry about. Get a second opinion with an ophthalmologist to see what your status is.

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Regarding glaucoma will 3 cups of coffee in the morning raise eye pressure?

Regarding glaucoma will 3 cups of coffee in the morning raise eye pressure?

Minimally: There might be a brief, non-dangerous elevation as the fluid gets into the body, but your kidneys will quickly take care of that. Don't give up your morning coffee on this account.

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If you miss a day of glaucoma eye medication will your eye pressure increase?

Minimally: Most glaucoma drops have a duration of effect of 12-48 hours. Therefore missing a day will usually not increase the pressure markedly. However, it is a good idea not to skip, especially if you have field loss from glaucoma or have very susceptible optic nerves.

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What lifestyle changes can be made to help keep eye pressure down in glaucoma?

Exercise: Patients with open-angle glaucoma who exercise at least 3 times a week may be reduce their intraocular pressure by an average of 20%. Also, decreasing caffeine may help.

Dr. Jeffrey Gold
561 Doctors shared insights

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