Two groups of patients, one under 40 years of age and the other 40 years and over, were
divided into subgroups according to whether they had symptoms associated with near …

A 1-year clinical trial to determine the prevalence of general dysfunctions in binocular vision
in a nonpresbyopic population was conducted in 1679 subjects aged 18 to 38 years. A …

This paper looks at the clinical investigative and measurement procedures used in
assessing binocular vision at the beginning of a normal working day and compared with the …

Fixation disparity and heterophoria at 40cm were compared for magnitude and direction in a
sample of 85 young adults. A low correlation was found between the magnitude of …

Distance and near readings of associated heterophoria were taken, using standard Mallett
units, on 500 patients passing consecutively through an optometric practice and any …

Fifty-one patients with diplopia were investigated prospectively to assess the correlation
between their subjective impression of disability from diplopia and an objective …

Changes with age in heterophoria, associated heterophoria, fixation disparity and stereopsis
for near vision were investigated in a sample of 187 subjects (age range from 10 to 65 …

PURPOSE: Patients often manifest symptoms that appear to be related to binocular distress.
Many of these patients have normal heterophoria at distance and near, making the etiology …

Introduction: In the evaluation of binocular function, the heterophoria is an essential
measure. Historically, the relationship of the near phoric measure to the far phoria has been …

Twenty patients having associated heterophoria values of 2 Δ and greater, as recorded with
a Mallett unit, had their near monocular and binocular visual acuities measured. In the latter …