Spot screener versus Grand Seiko measurements

The authors aimed to determine repeatability and reproducibility of refractive values and pupil size measured using the Spot Vision Screener and to compare its measurement values with the Grand Seiko autorefractor. This was a cross-sectional study of 22 healthy adults;...

Vertical disparity effects on horizontal fusion

This study was designed to investigate the effect of induced vertical disparity by prisms on horizontal fusional reserves at near distance. One hundred and seventy students were recruited and vertical disparity was induced by small vertical prisms of 0.5 and...

Fixation disparity measurement

The authors evaluate different procedures looking at point zero, fixation disparity (FD) and motor fusion amplitude in order to calibrate the measurement of FD with Ogle’s apparatus with the overall goal to create a standardised measurement of the FD curve...

Pseudostrabismus leading to strabismus

The authors aimed to evaluate the incidence of strabismus in children initially diagnosed with pseudostrabismus and identify risk factors for development of strabismus. This was a retrospective review of 65 patients with a diagnosis of pseudostrabismus; two exo and 63...

Perception of depth in 3-D media

The aim of this study was to evaluate the relationship between clinical measures of stereoacuity and the perception of depth in 3-D entertainment media. Fifty-seven subjects aged 16-62 years with stereopsis and no strabismus were assessed. Monocular blur was used...

Stimulus type vs. convergence measures

The aim of this study was to investigate if near point of convergence (NPC) would improve when a fixation target with centrally placed 3-D features (to increase binocular disparity stimulus) was used in comparison to a target using only centrally...

Reported cases of hemifield slide phenomenon

This article reports three cases of hemifield slide, a phenomenon whereby there is an inability to stabilise and fuse visual hemifields. It occurs with heteronymous visual field loss and is thought to result from the loss of corresponding retinal points....