tonometriya

Tonometriya is a medical term referring to the measurement of intraocular pressure (IOP), the fluid pressure inside the eye. This measurement is crucial in the diagnosis and management of glaucoma, a condition that can lead to irreversible vision loss if left untreated. Elevated IOP is a primary risk factor for glaucoma, though glaucoma can also occur with normal IOP.

Several methods are used for tonometriya. Goldmann applanation tonometry is considered the gold standard and involves gently flattening a small area of the cornea with a calibrated force. The pressure required to achieve this flattening is then used to calculate the IOP. Another common method is non-contact tonometry, also known as air-puff tonometry. This technique uses a gentle puff of air to flatten the cornea, and the response is measured electronically. While convenient and less invasive, it is generally considered less accurate than applanation methods.

Other tonometry techniques include indentation tonometry, where a weight is pressed against the cornea, and rebound tonometry, which measures the rebound of a small probe that lightly touches the cornea. The choice of tonometry method can depend on factors such as the patient's condition, the availability of equipment, and the desired level of accuracy. Regular tonometriya is a vital part of comprehensive eye examinations, particularly for individuals over the age of 40 or those with a family history of glaucoma.