Conducting an eye exam on any non-verbal patient, regardless of age, is surprisingly easy. We use objective testing with various tools to figure out the refractive error, binocular function, and health of the eye.
An objective examination of refractive error can be completed several ways. We can use a machine called an auto-refractor where the child looks at a computerized device and it tells you the refractive error or we can also use an instrument called a Retinoscope. This is a small handheld flashlight that directs a light into the eye. Based on the movement of the reflecting light, we can neutralize the power and figure out the prescription.
The same pretty much applies to the measurement of visual acuity, binocular function, and ocular health. We have several different tests and instruments that can objectively measure acuity, binocularity, and health without a verbal response.