What is Tonometry?
In ophthalmology, tonometry refers to measurements of intra-ocular pressure that can diagnose conditions like glaucoma. Intraocular pressure (IOP) is the pressure caused by fluids in the eye. High intraocular pressure can damage the nerves in the eyes and result in loss of sight. Since high intraocular pressure is often the greatest risk factor for illnesses like glaucoma, tonometry examinations tend to be quite standard along with other examinations of the eyes during a visit to an ophthalmologist. Tonometry examinations make use of a tonometer, which can adequately measure IOP. It does so by measuring the cornea’s resistance to outside pressure. Tonometry tests can actually be done in a several ways. Some ophthalmologists perform a noncontact tonometry measurement. A puff of air is shot at the eye at close range and the corneal reaction is observed. This is a frequently used form of tonometry, but according to most physicians, is also the least accurate means to detect high IOP. Anot
If you have ever had an eye exam, there is a good chance that you have undergone a detection process that is known as tonometry. Here is some background on tonometry, including what the procedure is used for, how it is conducted, and why tonometry can make a big difference in your life. Essentially, tonometry is a process that allows for measuring the pressure of the eye. What makes this method such an important part in maintaining proper eye care is that tonometry can help determine if there is the presence of glaucoma. Using the tonometry results, a competent ophthalmologist can determine if the eye is exhibiting symptoms of a higher level of tension or pressure that would be considered within normal limits. The presence of this raised level or pressure would indicate that there is undue stress that could eventually lead to loss of vision in both eyes. By using tonometry to identify glaucoma early on, the chances of being able to treat the condition successfully are greatly enhanced.
