The autorefractor is an automatic device for measurement of visual acuity, which is combined with us with the refractor, they are know as the measuring device for the spectacle power.
In general, the ophthalmologist measures to determine their diopter until the autorefractor, quasi opbjetive diopter. These are taken directly on the refractor, so a lengthy swapping lens glasses for subjective measurement can omitted. The values of autorefractor are already very close to the real diopter strength. which is then supplemented with their subjective vision and reading the letter. From both values along the ophthalmologist calculated their individual prescription they need for glasses.
If you already wear glasses, our glasses meter determines the values and sets it on the refractor, so that the process of correcting the spectacle power is also facilitated ..
