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Doctor insights on: Eye Pressure Readings

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Is eye pressure reading in mid morning higher than late afternoon?

Is eye pressure reading in mid morning higher than late afternoon?

Generally yes: Traditionally, intraocular pressure is higher in the morning than the afternoon. That is likely not the whole story with evidence of pressure spikes at other times, like on wakening. ...Read more

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If corneal thickness is 510 + 2 and eye pressure reading is 15, then is the true pressure 17? (i'm using travatan z).

If corneal thickness is 510 + 2 and eye pressure reading is 15, then is the true pressure 17?  (i'm using travatan z).

No: Most ophthalmologists do not adjust pressures based on corneal thickness. The important measurement is the pressure drop that occurred with treatment. If you have 20-30 percent drop, you are fine. ...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. ...Read more

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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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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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Slight pressure behind eyes. they feel heavy at times. slight blur when reading my phone could this be serious. just started happening?

Slight pressure behind eyes. they feel heavy at times. slight blur when reading my phone could this be serious. just started happening?

Pressure behind eyes: Feeling eye pressure/pain can be due to (most common to least): dry eye/tear film unstable; virus/bacteria starting to invade sinuses/getting cold/flu; headache/migraine; narrow angle; high eye pressure; rarely: inflammation in eye; eye infection; tumor in or around eye; more info: eyedoc2020@blogspot.com. An eyeMD can help determine cause. ...Read more

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Why do readings of eye pressure vary? One day 20 & next day 28. Which number do you use as baseline for treatment?

Why do readings of eye pressure vary?  One day 20 & next day 28. Which number do you use as baseline for treatment?

Normal : Intraocular pressure (iop) can fluctuate throughout the day. It is usually higher in the morning. Greater fluctuation is one of many parameters that increase the chance of glaucoma and the need for treatment. The decision for treatment and the target iop is individualized based on your starting iop, the health of your optic nerves, any visual field loss and your general health. ...Read more

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Eye pressure 31 today. Should i get a second reading next week before doctor establishes a baseline?

Eye pressure 31 today. Should i get a second reading next week before doctor establishes a baseline?

Depends: A solitary pressure reading has little value in determining whether an issue is present. It needs to correlated to the condition of the optic nerve. If the nerve is normal, no treatment is needed, but the patient should be followed for possible future damage. ...Read more