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Full-Text Articles in Optometry
To Investigate The Foveal Avascular Zone In A Young Healthy Population Using Optical Coherence Tomography Angiography, Susan O'Shea
To Investigate The Foveal Avascular Zone In A Young Healthy Population Using Optical Coherence Tomography Angiography, Susan O'Shea
Masters
Introduction/Aims Inflammatory diseases such as diabetes, glaucoma and age-related macular degeneration (AMD) can alter the size and shape of the foveal avascular zone (FAZ). Macular pigment (MP), a powerful antioxidant, located at the macula can protect the eye from oxidative stress damage. This study aims to investigate possible factors affecting the FAZ, such as vessel perfusion and overweight/obesity, in association with MP status in a young, healthy population. Normative values for FAZ size/shape and vascularity will also be proposed.
Methods One hundred and fifty-four subjects aged 18-35 years old were recruited. Superficial FAZ area, diameter, ganglion cell layer, central macular …
To Investigate The Effects Of Low Plus Prescription Lenses On Quality Of Life And Visual Performance In Children., Patricia Maher
To Investigate The Effects Of Low Plus Prescription Lenses On Quality Of Life And Visual Performance In Children., Patricia Maher
Masters
Aims: The purpose of this study was to investigate the effects of low plus prescription lenses on Quality of life and visual performance data. As part of the study opinions of optometrists regarding paediatric eye care was also explored. Methods: Each one of the 92 participants, aged between 8 and 12 years, attended for three visits, baseline, at 1 month and 3 months. A quality of life questionnaire was completed at each visit. Optometric probes including dynamic retinoscopy, relative accommodation, fusional reserves and stereopsis as well as reading speed were examined. A survey was sent out electronically to optometrists followed …
Ocular Aberrations Wavefront Sensor In Clinical Application, Matthew Sheehan
Ocular Aberrations Wavefront Sensor In Clinical Application, Matthew Sheehan
Masters
A versatile Hartmann-Shack (HS) wavefront sensor (WFS) was designed and constructed. Its advantages include simultaneous pupil centre determination, off-axis capability, realtime data displays, and efficient lenslet sampling orientation. The instrument is compact and transportable, making it convenient for use in a clinical setting. Subject alignment is achieved by the use of a parallel channel that is recombined with the sensing channel to simultaneously image the external eye and the HS spots onto a single charge coupled device (CCD). The pupil centre is determined using this image of the eye, rather than the HS spots. Off-axis measurements are possible throughout an …