refraktomeetria

Refraktomeetria is a diagnostic technique used to measure the refractive state of the eye, which is the ability of the eye to bend light as it enters the eye. This measurement is crucial for determining the appropriate prescription for corrective lenses, such as glasses or contact lenses. The process involves several steps, including the use of a phoropter, a device that holds various lenses of different powers. The patient looks through the lenses while the examiner adjusts the power until the best possible vision is achieved. The refractive state is then recorded, typically including measurements for both the right and left eyes. These measurements include the sphere (the power of the lens needed to correct nearsightedness or farsightedness), cylinder (the power needed to correct astigmatism), and axis (the orientation of the cylinder). Refraktomeetria is a fundamental part of eye examinations and is essential for ensuring that individuals receive the correct vision correction to improve their visual acuity and comfort.