ABSTRACT

The Brückner test can detect amblyogenic conditions, such as unequal or high refractive errors or strabismus. When both eyes are viewed simultaneously through the direct ophthalmoscope in a darkened room from a distance of approximately 2 to 3 feet with the child fixating on the ophthalmoscope light, the red reflexes seen from each eye should be equal in size, brightness, and colour. If one reflex is different from the other, there is a high likelihood that an amblyogenic condition exists. Furthermore, in hypermetropia the light reflex will not fill the entire pupil, but will be darker at the inferior part of the pupil opening. In myopia, the reflex will be darker on the superior side.