Many ways. The two most common methods are pneumatic tonometry (the puff of air method) and applanation tonometry (more accurate but requires eye drops).
Different ways. The most common method is goldmann tonometry, but newer tonometers have become available that take into account the biomechanical properties of the cornea that can influence the readout of intraocular pressure.
Different ways. Commonly, goldmann applanation with the blue light or air puff pneumotonometer. We also use tonopen, icare, pascal, reichert's, perkin's, and palpation depending on the cornea status. Schiotz is rarely used anymore.
Schiotz tonometer. I commonly use a sterilized schiotz indentation tonometer in a sterile field. The accuracy is fair, but the instrument can be sterilized and will not compromise the sterile field.
Generally no. The normal eye pressure range is 10-21. Anything above this might be elevated but you will not feel that elevation until the value reaches the high 40's or above. This is why pressure should always be taken when you visit your ophthalmologist as the feeling of pressure is not a clue for the patient.
Mm Hg. Or torr.
No. Relaxation and rest are always helpful but there are no reliable methods to lower eye pressure naturally.
Sort of. Eye pressure can be temporarily reduced by strenuous exercise.
Aerobic exercise. Regular aerobic exercise has been shown to lower iop in previously sedentary patients. There may be some help to the cardiovascular system, so that exercise has neuroprotective effects on the optic nerve. The mechanism may have something to do with hypertension and blood pressure, as an indirect effect.
Agree. The one thing worth mentioning is that the effect of exercise is typically transient - to enjoy the lowering iop effect, the exercise must be done on a regular basis. All types of exercise (aerobic, isometric, etc) seem to have some benefit.
No. This is mild elevation. I suggest returning to your ophthalmologist to recheck this pressure in six months to a year.
Normal IOP 10-20. Intraocular pressure (aka IOP) usually runs between approximately 10 and 20 mm Hg. It is frequently elevated in glaucoma, although not always. A pressure of 22 is elevated, although like with blood pressure there can be fluctuations. If you have no family history of glaucoma, I would recommend a recheck in 6 months. If you do have a history, I would have it rechecked in 3 months.
None. Unless the pressure goes sky high. This is called acute glaucoma and it is very painful.
Glaucoma is uncommon. Your eye pressure is usually normal. Elevated pressures that are too high for too long can hurt the delicate eye tissue. The nerve can die and the vision can be lost. You can have the pressure measured easily at the eye doctors office. The test is simple and no pain Keep us posted.
Yes but. Most likely the high pressure reading is causing the headache I am sure if you have either you are under the care of either an eye surgeon or your local doctor either way keep in touch with your doctor.