A5107700438- Visual perception and processing mechanisms
- Vestibular and auditory disorders
- Glaucoma and retinal disorders
- Ophthalmology and Eye Disorders
- Ophthalmology and Visual Impairment Studies
- Retinal Development and Disorders
- melanin and skin pigmentation
- Ocular and Laser Science Research
- Color Science and Applications
- Hearing, Cochlea, Tinnitus, Genetics
- EEG and Brain-Computer Interfaces
- Intraocular Surgery and Lenses
- Neural and Behavioral Psychology Studies
- Infrared Target Detection Methodologies
- Dye analysis and toxicity
- Ocular Surface and Contact Lens
- Spatial Neglect and Hemispheric Dysfunction
- Neural dynamics and brain function
- Transcranial Magnetic Stimulation Studies
- Categorization, perception, and language
- Language, Metaphor, and Cognition
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Gaze Tracking and Assistive Technology
- Color perception and design
- Augmented Reality Applications
Persian Gulf University
2024
York University
2023
University of Manchester
1985-2007
College of Optometrists
1999-2003
Institute of Science and Technology
1974-1994
City of Glasgow College
1983
Past studies have explored some of the associations between particular motor and sensory characteristics specific categories non-neurological infantile nystagmus. The purpose this case study is to extend body work significantly by describing trends found in a database 224 subjects who undergone extensive clinical psychophysical evaluations.The records with nystagmus were examined, where 62% idiopaths, 28% albinos, 10% exhibited ocular anomalies. Recorded variables included age, mode...
Congenital nystagmus is a disorder of eye movement with an associated reduction in visual acuity. The latter mainly due to the intensity (amplitude times frequency) allowing object regard spend only short time on fovea. Training patients by auditory feedback technique control enables sensitivity improve. This method compared present alternatives, and further studies are suggested.
In health, there are three main control mechanisms for maintaining steady gaze—fixation; the vestibulo-ocular reflex; and a gaze-holding system (the neural integrator), which operates whenever eyes required to hold an eccentric gaze position1,2,3. Failure of any these systems will bring about disruption fixation. Two types abnormal fixation can result—nystagmus saccadic intrusions/oscillations. The essential difference between them lies in initial movement that takes line sight off object...
The refractive status of individuals with congenital nystagmus (albinos and idiopaths) has been examined. Our results indicate that there is a greater than normal incidence high spectacle astigmatism. This predominantly with-the-rule corneal in origin (anterior surface). Partial neutralization by the against-the-rule residual astigmatism frequent does not differ significantly from reported for populations. Topographical studies anterior surface revealed was no statistically significant...
Abstract Purpose: To introduce and describe two methods of grading the severity infantile cataracts, thereby propose a useful clinical guide for early surgical intervention. Methods: Thirty‐three subjects, aged 1 week to 8 years, participated in study. Twenty‐two were evaluated soon after birth (1 week), 11 childhood (3–8 years). All had isolated which 16 bilateral 17 unilateral. Nine cataract types examined; nuclear ( n = 9), lamellar posterior lenticonus 4), persistent hyperplastic primary...
The clinical diagnosis of albinism can often be uncertain, particularly when one is confronted with blond patients congenital nystagmus. Monochromatic fundus photography was carried out on 31 nystagmus to examine three retinal features: the macular pigment, foveal vasculature, and pigment epithelium. All subjects who were later classified as albinos did not exhibit any signs pigmentation. Our results imply that monochromatic a useful aid in albinism.
Using an infrared recording system we examined the nystagmus waveforms of a pair monozygotic twin girls and found them to be dissimilar. It is proposed that in view common mode inheritance differences are result environmental influences.