Direct Comparison Of Binocular Near Visual Acuity Measured Using The Bailey-Lovie Near Visual Acuity Card And The Saladin Near Point Balance Card.

A controlled clinical study was performed to determine whether a significant difference
existed between binocular near visual acuity levels measured using the Bailey-Lovie
Near Visual Acuity Card and the Saladin Near Point Balance Card. Binocular near visual
acuities were measured for 100 patients over the age of ten. Acuity was measured using
the total number of equivalent letters read per card, starting with the largest print size row and then each subsequent row, until the patient missed three sequential letters. Total letters read per patient were statistically analyzed using a paired T -test. No significant difference was found between binocular near visual acuity levels measured using the Bailey-Lovie Near Visual Acuity Card and the Saladin Near Point Balance Card (t (99) = -0.18, P >.05). In fact, a strong positive correlation was found between the binocular visual acuity levels measured using both cards (r = .85). It appears that using the Saladin Near Point Balance Card as a clinical tool for the measurement of binocular near visual acuities is as efficacious as using the Bailey-Lovie Near Visual Acuity Card.