Correlating retinal and choroidal vascular parameters with volumetric MRI in Alzheimer's disease and amnestic mild cognitive impairment.

Background: We assess the relationships between retinal and choroidal structural and microvascular parameters and brain volumetric magnetic resonance imaging (MRI) parameters in individuals with amnestic mild cognitive impairment (aMCI) and Alzheimer's disease (AD).

Methods: Participants underwent optical coherence tomography (OCT) and OCT angiography (OCTA) imaging using the Zeiss Cirrus HD-5000 AngioPlex (Carl Zeiss Meditec, Dublin, CA) and volumetric brain MRI imaging with NeuroQuant (CorTechs Labs, San Diego, CA) analysis. Retinal and choroidal structural and microvascular parameters were extracted from OCT and OCTA scans.

Oral Antithrombotic Medication Is Associated with Improved Visual Outcomes in Eyes with Submacular Hemorrhage from Wet Age-Related Macular Degeneration.

Purpose: To determine differences in visual acuity (VA) outcomes in eyes of patients on antithrombotics (antiplatelet agents and anticoagulants) that develop submacular hemorrhage (SMH) compared with eyes of patients who are not on antithrombotics and develop SMH.

Design: A retrospective study of patients presenting with fovea-involving SMH due to wet age-related macular degeneration over an 8-year period who had ≥6 months of follow-up.

Subjects: Demographics, VA at presentation and final follow-up after SMH management, and history of any antithrombotic therapy were collected.

Trends in Choroidal Vascularity Index in Cognitively Normal Individuals.

Purpose: To establish a normative database of choroidal vascularity index (CVI) in cognitively normal adults.

Methods: Cognitively healthy volunteers who had a Montreal Cognitive Assessment (MoCA) score of 23 or higher were included. Exclusion criteria included diabetes mellitus, uncontrolled hypertension, glaucoma, optic neuropathy, vitreoretinal disorders, intraocular surgery other than cataract or refractive, and visual acuity worse than 20/40.

Correction: Angioarchitectural alterations in the retina and choroid in frontotemporal dementia.

[This corrects the article DOI: 10.1371/journal.pone.

Clinical Features Associated With Return to Pre-endophthalmitis Visual Acuity Following Presumed Infectious Endophthalmitis.

Background And Objective: This study aimed to investigate clinical characteristics associated with return to pre-endophthalmitis visual acuity (VA) following treatment for presumed infectious endophthalmitis.

Patients And Methods: This was a retrospective study of 74 eyes with endophthalmitis and VA recorded ≤ 12 weeks before presentation and 6 months after presentation between 2009 and 2018.

Results: Thirty-six of 74 eyes (49%) returned to preendophthalmitis VA.

Longitudinal Assessment of Peripapillary Microvasculature Using Optical Coherence Tomography Angiography in Cognitively Normal Adults.

To evaluate longitudinal peripapillary changes in cognitively normal older adults using optical coherence tomography (OCT) and OCT angiography (OCTA). Participants older than 50 years with no history of neurodegenerative disease or cognitive impairment were prospectively enrolled. OCT and OCTA images were obtained at the first visit and 2 years later.

Presenting Characteristics, Treatment, and Visual Outcomes in Streptococcal Compared to Non-Streptococcal Endophthalmitis.

Purpose: Report the clinical findings, risk factors, treatment, and visual outcomes associated with  endophthalmitis in comparison to culture-positive endophthalmitis associated with non- species.

Methods: A retrospective chart review of adults between 18 and 89 years of age diagnosed with exogenous culture-positive endophthalmitis between January 1, 2009, and January 1, 2018, at the Duke Eye Center (Durham, North Carolina) with at least six months of follow-up from time of initial diagnosis was conducted. Clinical data including patient demographics, ocular history, baseline corrected visual acuity (VA) prior to presentation, time to presentation, presenting exam findings, VA at presentation, presumed etiology of endophthalmitis, medical and surgical management, and VA at the six-month follow-up was extracted and statistically analyzed.

Aqueous and Plasma Levels of Phosphorylated Tau 181 in Individuals with Normal Cognition.

Background: Plasma and cerebrospinal fluid (CSF) levels of p-tau181 have been associated with Alzheimer's disease (AD). The retina and vitreous have shown measurable quantities of phosphorylated tau 181 (p-tau181). The aqueous humor, which can be collected during cataract surgery, may have measurable concentrations of p-tau181.

Analysis of the Retinal and Choroidal Vasculature Using Ultrawidefield Fundus Imaging in Mild Cognitive Impairment and Normal Cognition.

Purpose: To utilize ultrawidefield (UWF) imaging to evaluate retinal and choroidal vasculature and structure in individuals with mild cognitive impairment (MCI) compared with that of controls with normal cognition.

Design: Prospective cross sectional study.

Participants: One hundred thirty-one eyes of 82 MCI patients and 230 eyes of 133 cognitively normal participants from the Eye Multimodal Imaging in Neurodegenerative Disease Study.

Incidence, risk factors, and treatment of retroprosthetic membranes following Boston keratoprosthesis eyes and the impact of glaucoma surgery.

Purpose: To assess incidence, risk factors, and treatment of retroprosthetic membrane (RPM) formation in eyes following Boston keratoprosthesis (Kpro) implantation and their correlation with glaucoma drainage device placement (GDD).

Methods: A retrospective review was performed on eyes that underwent Kpro type I or II implantation between 2005 and 2020 at a tertiary academic center. Multiple variables were collected including preoperative characteristics, presence of RPM, management of RPM, and outcomes including corrected visual acuity (VA).

Peripapillary Optical Coherence Tomography Angiography in Alzheimer's Disease, Mild Cognitive Impairment, and Normal Cognition.

Objective: This study aimed to identify peripapillary microvascular changes in Alzheimer's disease (AD) and mild cognitive impairment (MCI).

Patients And Methods: In this prospective study, 66 eyes of 36 subjects with AD, 119 eyes of 63 with MCI, and 513 eyes of 265 controls with normal cognition were enrolled. Peripapillary capillary perfusion density (CPD), capillary flux index (CFI), and retinal nerve fiber layer (RNFL) thickness were determined.

Ultra-Widefield Imaging of the Retinal Macrovasculature in Parkinson Disease Versus Controls With Normal Cognition Using Alpha-Shapes Analysis.

Purpose: To investigate retinal vascular characteristics using ultra-widefield (UWF) scanning laser ophthalmoscopy in Parkinson disease (PD).

Methods: Individuals with an expert-confirmed clinical diagnosis of PD and controls with normal cognition without PD underwent Optos California UWF imaging. Patients with diabetes, uncontrolled hypertension, glaucoma, dementia, other movement disorders, or known retinal or optic nerve pathology were excluded.

Differences in Retinal and Choroidal Microvasculature and Structure in Dementia With Lewy Bodies Compared With Normal Cognition.

To evaluate the retinal and choroidal microvasculature and structure in individuals with dementia with Lewy bodies (DLB) compared with controls with normal cognition using optical coherence tomography (OCT) and OCT angiography (OCTA). An institutional review board-approved cross-sectional comparison of patients with DLB and cognitively normal controls was performed. The Cirrus HD-OCT 5000 with AngioPlex (Carl Zeiss Meditec) was used to obtain OCT and OCTA images.

Longitudinal Analysis of Retinal Microvascular and Choroidal Imaging Parameters in Parkinson's Disease Compared with Controls.

Purpose: To quantify rate of change of retinal microvascular and choroidal structural parameters in subjects with Parkinson's disease (PD) compared with controls using OCT and OCT angiography (OCTA).

Design: Prospective longitudinal study.

Participants: Seventy-four eyes of 40 participants with PD and 149 eyes of 78 control individuals from the Eye Multimodal Imaging in Neurodegenerative Disease database.

ENDOGENOUS ENDOPHTHALMITIS ASSOCIATED WITH INJECTION DRUG USE COMPARED WITH OTHER ETIOLOGIES.

Purpose: To compare features of endogenous endophthalmitis associated with injection drug use (IDU) to endogenous endophthalmitis from other etiologies.

Methods: The authors retrospectively collected data on patients with endogenous endophthalmitis due to IDU or other causes from three academic tertiary care centers over a six-year period. Differences in presenting characteristics, culture results, treatment, and visual acuity were compared between groups.

Convolutional Neural Network-Based Automated Quality Assessment of OCT and OCT Angiography Image Maps in Individuals With Neurodegenerative Disease.

Purpose: To train and test convolutional neural networks (CNNs) to automate quality assessment of optical coherence tomography (OCT) and OCT angiography (OCTA) images in patients with neurodegenerative disease.

Methods: Patients with neurodegenerative disease were enrolled in the Duke Eye Multimodal Imaging in Neurodegenerative Disease Study. Image inputs were ganglion cell-inner plexiform layer (GC-IPL) thickness maps and fovea-centered 6-mm × 6-mm OCTA scans of the superficial capillary plexus (SCP).

Retinal Vascular Changes in Alzheimer's Dementia and Mild Cognitive Impairment: A Pilot Study Using Ultra-Widefield Imaging.

Purpose: Retinal microvascular abnormalities measured on retinal images are a potential source of prognostic biomarkers of vascular changes in the neurodegenerating brain. We assessed the presence of these abnormalities in Alzheimer's dementia and mild cognitive impairment (MCI) using ultra-widefield (UWF) retinal imaging.

Methods: UWF images from 103 participants (28 with Alzheimer's dementia, 30 with MCI, and 45 with normal cognition) underwent analysis to quantify measures of retinal vascular branching complexity, width, and tortuosity.

Repeatability of Peripapillary OCT Angiography in Neurodegenerative Disease.

Purpose: To assess the repeatability of peripapillary OCT angiography (OCTA) in those with Alzheimer disease (AD), mild cognitive impairment (MCI), Parkinson disease (PD), or normal cognition.

Design: Cross-sectional.

Participants: Patients with a clinical diagnosis of AD, MCI, PD, or normal cognition were imaged.