Comparison of the visual effects of Fresnel prisms in normal and amblyopic eyes

D Wright, AY Firth, D Buckley - Journal of American Association for …, 2008 - Elsevier
PURPOSE: We sought to assess the effects of Fresnel prisms on the visual acuity and peak
contrast sensitivity in the amblyopic and sound eyes of participants with amblyopia and to …

[HTML][HTML] The logMAR Kay picture test and the logMAR acuity test: a comparative study

MC Elliott, AY Firth - Eye, 2009 - nature.com
Purpose To compare the level of visual acuity with crowded and uncrowded versions of the
logMAR acuity test and the Kay picture test in amblyopia. Methods A prospective study was …

Heroin and diplopia

AY Firth - Addiction, 2005 - Wiley Online Library
Aims To describe the eye misalignments that occur during heroin use and heroin
detoxification and to give an overview of the management of persisting diplopia (double …

Is there a relationship between prism fusion range and vergence facility?

AC Melville, AY Firth - British Orthoptic Journal, 2002 - eprints.whiterose.ac.uk
Aim: To investigate the relationship between prism fusion range (PFR) and vergence facility
(VF) measurements in subjects with normal binocular vision. Methods: Twenty-eight subjects …

Is the Cardiff Acuity Test effective in detecting refractive errors in children?

C Howard, AY Firth - Optometry and vision science, 2006 - journals.lww.com
Purpose. Refractive error is a common cause of reduced visual acuity in young children.
This reduced vision should be detected as soon as possible to avoid development of …

Pupillary responses in amblyopia.

AY Firth - British journal of ophthalmology, 1990 - bjo.bmj.com
Relative afferent pupillary defects (RAPD) were detected in 32.3% of patients with
amblyopia by a modification of the swinging flashlight test and the synoptophore. After …

Tilt and reading speed

AY Firth, J Machin, CL Watkins - Journal of American Association for …, 2007 - Elsevier
PURPOSE: To measure the effect of head tilt on reading rate and to determine whether a
difference existed between the body or the text being tilted. METHODS: The Wilkins Rate of …

Visual side-effects from transdermal scopolamine (hyoscine)

AY Firth, K Walker - Developmental medicine and child neurology, 2006 - cambridge.org
Transdermal scopolamine may be used to reduce drooling in children with disabilities. Side-
effects include dilated pupils and a reduction in the near point of accommodation (the …

Heroin withdrawal as a possible cause of acute concomitant esotropia in adults

AY Firth - Eye, 2001 - nature.com
Methods A case series of patients is presented in whom esotropia developed on cessation
of heroin use. Results In each case the esotropia was concomitant and prismatic correction …

Ocular sequelae from the illicit use of class A drugs

AY Firth - British and Irish Orthoptic Journal, 2004 - eprints.whiterose.ac.uk
Aim: To highlight the changes that may take place in the visual system of the class A drug
abuser. Methods: A literature review was carried out of ocular/visual sequelae of the more …