New Methods For Checking Your Eye Pressure For Glaucoma - Eye Doctors Can Find Glaucoma Earlier

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Whats new in eye pressure readings for glaucoma? For years the fluid pressure in your eyes has been largely measured by two different methods. The first formula applies pressure to a small area of the clear tissue on the front of the eye know as the cornea. This formula requires a drop to make your eyes numb for five to then minutes so the small tip of the instrument can lightly touch the front of your eye without having pain or a blink reflex. You may remember finding at small blue light approaching your eye. This is used with an orange dye to help it glow, and makes it easier for the eye physician to align the half circle patterns that determine the final readings. The second formula sends a small puff of air to the front of your eye to flatten the tissue. It then acts like a mirror and reflects an infrared light beam back into the instrument. The estimate of time it takes for this to happen is correlated with the pressure in the eye and it gives a digital readout.

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Both methods are good indicators of the actual eye pressure but not perfect. They base their readings on an average thickness of the cornea, a petite more than half of a millimeter. Tissues that are thinner than average offer less resistance to any pressure applied and give readings lower than the actual pressure. The true pressure could only be thought about by a formula attractive poking a hole in your eye which is obviously something only done on citizen not breathing or part of this world. Everybody else seems to complain about such a technique. Since there is less resistance from a thinner tissue the eye pressure readings are artificially low.

Eye pressures average 15-16 and the normal range is about 6 to 20. If they are 21 or higher your optometrist starts to be concerned you may have glaucoma, a disease where elevated eye pressure contributes to eye sight loss and blindness if not treated in a timely manner. The cornea also has structural factors that determine how well it rebounds after pressure is applied. Tissues that don't rebound as well also read artificially low pressures.

The last few years have seen more instruments used to part the thickness of the cornea and factor this in as an approximate estimate to add or subtract form the eye pressure readings. A new generation of instruments are being advanced to compensate for these aberrations to the pressure readings. One instrument takes a hundred reading in a second and averages them into one estimate to enhance accuracy. The tip of this instrument dynamically adjusts its shape to match the curvature of the cornea and help eliminate the structural effects on pressure readings by applying force uniformly. A second instrument measures how long it takes the tissue to rebound and recover its curvature after the air puff flattens it. This is factored into the final pressure reading.

Your eye pressure is dynamic, not static and does convert some throughout the day. Some citizen have larger swings so the eye pressure is often read at different times of the day so you eye physician is finding at a daily range of pressure instead of a singular reading. Eye pressure is only one of the determining issues in deciding if you have glaucoma, but it is an leading one. The time to come holds great promise for finding improved ways to determine your eye pressure with more accuracy and the other contributing factors that cause it to vary.

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