13 Result(s)
within
David Alonso-Caneiro
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Article
Open AccessThe association between conjunctival and scleral thickness and ocular surface ultraviolet autofluorescence
Ultraviolet autofluorescence (UVAF) imaging is used to visualise ocular surface changes due to sunlight exposure and so is considered to be a biomarker for UV damage. The conjunctival and scleral thicknesses o...
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Article
Open AccessDiurnal changes in choroidal optical coherence tomography angiography indices over 24 hours in healthy young adults
This prospective study investigated the magnitude and pattern of variation in choroidal optical coherence tomography angiography (OCT-A) indices every 4 h over 24 h in healthy young myopic (n = 24) and non-myo...
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Article
Open AccessA comparison of deep learning U-Net architectures for posterior segment OCT retinal layer segmentation
Deep learning methods have enabled a fast, accurate and automated approach for retinal layer segmentation in posterior segment OCT images. Due to the success of semantic segmentation methods adopting the U-Net...
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Article
Open AccessEvaluation of focus and deep learning methods for automated image grading and factors influencing image quality in adaptive optics ophthalmoscopy
Adaptive optics flood illumination ophthalmoscopy (AO-FIO) is an established imaging tool in the investigation of retinal diseases. However, the clinical interpretation of AO-FIO images can be challenging due ...
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Article
Open AccessA deep learning method for automatic segmentation of the bony orbit in MRI and CT images
This paper proposes a fully automatic method to segment the inner boundary of the bony orbit in two different image modalities: magnetic resonance imaging (MRI) and computed tomography (CT). The method, based ...
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Article
Data augmentation for patch-based OCT chorio-retinal segmentation using generative adversarial networks
Many clinical and research tasks rely critically upon the segmentation of tissue layers in optical coherence tomography (OCT) images of the posterior eye (the retina and choroid). However, a major limitation o...
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Article
Open AccessAssociations between seven-year C-reactive protein trajectory or pack-years smoked with choroidal or retinal thicknesses in young adults
Inflammation and cigarette smoking predispose to macular diseases, and choroidal and retinal thinning. We explored the choroidal and retinal thicknesses in young adults against their 7-year C-reactive protein ...
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Article
Open AccessCustom extraction of macular ganglion cell-inner plexiform layer thickness more precisely co-localizes structural measurements with visual fields test grids
We aimed to evaluate methods of extracting optical coherence tomography (OCT)-derived macular ganglion cell-inner plexiform layer (GCIPL) thickness measurements over retinal locations corresponding to standard...
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Article
Open AccessAutomatic choroidal segmentation in OCT images using supervised deep learning methods
The analysis of the choroid in the eye is crucial for our understanding of a range of ocular diseases and physiological processes. Optical coherence tomography (OCT) imaging provides the ability to capture hig...
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Article
Open AccessWide-field choroidal thickness in myopes and emmetropes
There is a paucity of knowledge regarding the normal in-vivo thickness of the choroid beyond the macula (~17°). In this study, the choroidal thickness of 27 healthy young adults was examined across the macular (t...
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Chapter and Conference Paper
Automatic Retinal and Choroidal Boundary Segmentation in OCT Images Using Patch-Based Supervised Machine Learning Methods
The assessment of retinal and choroidal thickness derived from spec...
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Article
Open AccessDaily morning light therapy is associated with an increase in choroidal thickness in healthy young adults
Ambient light exposure is one environmental factor thought to play a role in the regulation of eye growth and refractive error development, and choroidal thickness changes have also been linked to longer term ...
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Article
Open AccessAnterior eye tissue morphology: Scleral and conjunctival thickness in children and young adults
The sclera and conjunctiva form part of the eye’s tough, protective outer coat, and play important roles in the eye’s mechanical protection and immune defence, as well as in determining the size and shape of t...
