Refraction and control of visual acuity can be simple when the person who undergoes the test is at ease and collaborates. Babies however are unpredictable, they become suspicious if any device prevents the peripheral vision.
The B-100 trial frame is always well balanced on the face because it is held at the back by elastic and allows the refractionist to have the patient’s full concentration. Lens holder rings use standard 38mm trial lens sets. The B-100 trial frame comes in a small handy hard case.