Question 1

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

Accepted Answer

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.

Question 2

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

Accepted Answer

Usually yes.: Generally eye pressure is higher in the mornings and lower in the afternoon but this is not true for everyone.

Question 3

why do readings of eye pressure vary?  one day 20 & next day 28. which number do you use as baseline for treatment?

Accepted Answer

VariableEyePressure: Simply stated, the eye pressure (iop) can vary day-to-day, hour-to-hour.  A 40% (20-28) increase from one day to the next seems unusual. Were the reading done on the same machine both times?... A baseline is most often established after 'several' readings, on machines that are identical (of have been regularly calibrated). Get this right before using your numbers.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

Generally yet: There is a nomogram relating corneal thickness to internal pressure and at a thickness of 510 (on the thinner side) the pressure estimate is 2 points higher.  If your eye pressure is 15, that is comfortably in the normal range.  Are you being treated to lower your pressure to that level?

Question 6

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?

Accepted Answer

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.

Question 7

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?

Accepted Answer

Yes: Because the cornea is thin, your actual eye pressure is 2 points higher than measured.

Question 8

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

Accepted Answer

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.

Question 9

i went to a doctor to do a eye pressure test.he didn't move the device as close as possible to my cornea.he also didn't use any dye.is the test being done correctly.i got a high reading even though 5 months ago i got a reading of 14 16 ?

Accepted Answer

: The standard test that ophthalmologists use requires the application of a yellow dye suspended in an anesthetic solution.  When the eye is numb a prism is moved onto the surface which you cannot feel and the pressure is measured.  There is an alternative with a hand held device which requires numbing but no dye.  Did the doc apply an anesthetic ? Your test was likely fine but needs a repeat.

Question 10

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

Accepted Answer

Doubtful---glaucoma : Doubtful---glaucoma can effect anyone particularyly as they age.  Thankfully with good treatment you should not lose any vision to the disease.

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Doctor answers about:

What is a normal eye pressure reading

A member asked:

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

A member asked:

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

A member asked:

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

A member asked:

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

A member asked:

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

A member asked:

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?

A member asked:

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?

A member asked:

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

A member asked:

I went to a doctor to do a eye pressure test.he didn't move the device as close as possible to my cornea.he also didn't use any dye.is the test being done correctly.i got a high reading even though 5 months ago i got a reading of 14 16 ?

A member asked:

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

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