Outputs (454)

Oculomotor responses to perspective grid line drawings (1996)
Journal Article

Purpose. Can disconjugate eye movements be triggered by pictorial depth cues? If they could, this would facilitate eye pointing to three-dimensional displays. Method. Eye movement responses were measured as subjects shifted their gaze from a central... Read More about Oculomotor responses to perspective grid line drawings.

An evaluation of the keratoconic cornea using computerised corneal mapping and ultrasonic measurements of corneal thickness (1996)
Journal Article

Reports indicate the presence of up to three independent cone shapes in keratoconus (round/oval/global) but the preponderance of one cone over another is unclear. This work evaluates keratoconic corneal topography and corneal thickness using videoker... Read More about An evaluation of the keratoconic cornea using computerised corneal mapping and ultrasonic measurements of corneal thickness.

Keratoconus in monozygotic twins in New Zealand (1995)
Journal Article

We report on a case of keratoconus in identical twins who were brought up in Christchurch, New Zealand. Videokeratoscopy using an EyeSysa (EyeSys Laboratories, Houston, Texas, USA) revealed not only marked differences in severity of keratoconus betwe... Read More about Keratoconus in monozygotic twins in New Zealand.

Helmet slippage during visual tracking: The effect of voluntary head movements (1993)
Journal Article

The influence of visual tracking on head movement and on the head/helmet system was investigated for two different helmets (a motorcycle helmet and a flying helmet) under static laboratory conditions. Subjects visually refixated between pairs of illu... Read More about Helmet slippage during visual tracking: The effect of voluntary head movements.

Pharmacological effects on accommodative adaptation (1992)
Journal Article

We review the research which has attempted to determine whether the characteristics of autonomic innervation of ciliary smooth muscle are relevant to the process of accommodative adaptation. The effect of various topical autonomic drugs on the three... Read More about Pharmacological effects on accommodative adaptation.

Some visual, optometric and perceptual effects of coloured glasses (1991)
Journal Article

We examined 20 individuals who had worn coloured glasses (Irlen filters) for a period of at least 3 months and who claimed to find them beneficial. Sixteen had a history of reading difficulties. The performance of a variety of visual tasks was compar... Read More about Some visual, optometric and perceptual effects of coloured glasses.

The frequency characteristics of accommodative microfluctuations for central and peripheral zones of the human crystalline lens (1990)
Journal Article

Temporal variations in the nominally steady-state accommodation response can be characterized approximately by two principal regions of dominant activity: a low frequency region (LFR less than 0.6 Hz) and a high frequency region (HFR greater than 1.0... Read More about The frequency characteristics of accommodative microfluctuations for central and peripheral zones of the human crystalline lens.

The effect of pupil size on static and dynamic measurements of accommodation using an infra-red optometer (1989)
Journal Article

The study examines to what degree the output of the Canon Auto-ref R1 infra-red (IR) optometer is affected by variations in pupil size for both static measurement of refractive error and for continuous recording of accommodation when switched to its... Read More about The effect of pupil size on static and dynamic measurements of accommodation using an infra-red optometer.

The effect of high frequency flicker on accommodation (1989)
Journal Article

Monocular accommodation was measured by a laser optometer while two subjects viewed a letter matrix target illuminated by steady or intermittent (300, 100, 50 and 25 Hz) light and presented at a number of optical distances (0.5, 1.5, 2.5, 3.5 and 4.5... Read More about The effect of high frequency flicker on accommodation.

Effects of phosphor persistence on perception and the control of eye movements. (1989)
Journal Article

When a rapid eye movement (saccade) is made across material displayed on cathode ray tube monitors with short-persistence phosphors, various perceptual phenomena occur. The phenomena do not occur when the monitor has a long-persistence phosphor. Thes... Read More about Effects of phosphor persistence on perception and the control of eye movements..