Photokeratometry

Photokeratometry is a method for studying the cornea of ​​the eye, based on the analysis of its reflective properties.

The essence of the method is as follows: a beam of light is directed at the cornea, which is reflected from its surface. The reflected light is recorded using a camera, after which the optical power and curvature of the cornea in different meridians are determined by the nature of the reflection.

In other words, photokeratometry allows you to obtain a topographic map of the cornea - a map of its curvature. This data is necessary for selecting contact lenses, planning refractive surgery on the cornea and diagnosing various diseases accompanied by its deformation.

Thus, photokeratometry is an important diagnostic method in ophthalmology, providing valuable information about the condition of the cornea.

Photokeratometric diagnostics is used to assess the optical power of the eye. Translated from ancient Greek, this means “measurement of horny substances” or keratometry. A keratometer is a device that allows you to measure the radius of curvature of the cornea. This is one of the key parameters. The more accurately the cornea is determined, the more accurately it can be determined