Andrew Metha

Towards distortion-free imaging of the eye

Phillip Bedggood, Andrew Metha

Journal article  |  2021  |  PLOS ONE

The high power of the eye and optical components used to image it result in "static" distortion, remaining constant across acquire..

Retinal hyperspectral imaging in the 5xFAD mouse model of Alzheimer's disease

Jeremiah KH Lim, Qiao-Xin Li, Tim Ryan, Phillip Bedggood, Andrew Metha, Algis J Vingrys, Bang Bui, Christine TO Nguyen

Journal article  |  2021  |  SCIENTIFIC REPORTS

Hyperspectral imaging of the retina has recently been posited as a potentially useful form of spectroscopy of amyloid-beta (Aβ) pr..

Recovering the appearance of the capillary blood column from under-sampled flow data

Phillip Bedggood, Andrew Metha

Journal article  |  2020  |  OPTICS LETTERS

The regular spacing of cells in capillary flow results in spurious cell trajectories if the sampling rate is too low. This makes i..

Are you sure? The relationship between response certainty and performance in visual detection using a perimetry-style task

Phillip Bedggood, Aiza Ahmad, Adam Chen, Rachael Lim, Sadiqa Maqsudi, Andrew Metha

Journal article  |  2020  |  JOURNAL OF VISION

Conventional psychophysical methods ignore the degree of confidence associated with each response. We compared the psychometric fu..

Adaptive optics imaging of the retinal microvasculature

Phillip Bedggood, Andrew Metha

Journal article  |  2019  |  CLINICAL AND EXPERIMENTAL OPTOMETRY

The eye has long been recognised as the window to pathological processes occurring in the brain and other organs. By imaging the v..

Imaging relative stasis of the blood column in human retinal capillaries

Phillip Bedggood, Andrew Metha

Journal article  |  2019  |  BIOMEDICAL OPTICS EXPRESS

Capillary flow largely consists of alternating red cells and plasma whose speed oscillates predictably with the cardiac cycle. Sup..

The influence of perceptual stabilisation on perceptual grouping of temporally asynchronous stimuli

Adela SY Park, Phillip A Bedggood, Andrew B Metha, Andrew J Anderson

Journal article  |  2019  |  VISION RESEARCH

Even during fixation, our eyes constantly make small, involuntary eye movements that cause the retinal image to be swept across ou..

Identifying transient flow phenomena in retinal capillaries

Phillip A Bedggood, Andrew Metha

Conference Proceedings  |  2019  |  INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE

Characterizing spatial and temporal heterogeneity in retinal capillary blood flow

Srividya Neriyanuri, Phillip A Bedggood, RC Andrew Symons, Andrew Metha

Conference Proceedings  |  2019  |  INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE

Mapping flow velocity in the human retinal capillary network with pixel intensity cross correlation

Phillip Bedggood, Andrew Metha

Journal article  |  2019  |  PLOS ONE

We present a new method for determining cellular velocity in the smallest retinal vascular networks as visualized with adaptive op..