retinoscope การใช้

By looking through the retinoscope, the doctor can study the light reflex of the pupil.
Light source A penlight / light from retinoscope or ophthalmoscope could be used at the start of the near cover test assessment to observe the patient s corneal reflections, and to see whether their fixation is steady, central and maintained.
Sometimes the habitual glasses Rx or an automated refractor is used to provide initial settings for the phoropter, and sometimes a retinoscope is used through the phoropter to measure the vision without the patient having to speak, which is useful for babies and people who don't speak the language of the practitioner.