Development of LuxIA, a Cloud-Based AI Diabetic Retinopathy Screening Tool Using a Single Color Fundus Image.

Purpose: Diabetic retinopathy (DR) is the leading cause of vision impairment in working-age adults. Automated screening can increase DR detection at early stages at relatively low costs. We developed and evaluated a cloud-based screening tool that uses artificial intelligence (AI), the LuxIA algorithm, to detect DR from a single fundus image.

Retinal age as a predictive biomarker of the diabetic retinopathy grade.

Objective: To apply artificial intelligence (AI) techniques, through deep learning algorithms, for the development and optimization of a system for predicting the age of a person based on a color retinography and to study a possible relationship between the evolution of retinopathy diabetes and premature ageing of the retina.

Methods: A convolutional network was trained to calculate the age of a person based on a retinography. Said training was carried out on a set of retinographies of patients with diabetes previously divided into three subsets (training, validation and test).

Fotopic and scotopic retinal sensitivity and foveal fixation normal values using microperimetry in healthy population.

Purpose: To determine normal values of fotopic and scotopic retinal sensitivity and foveal fixation obtained by microperimetry, using MP3-S microperimeter (Nidek, Gamagori, Japan), in a healthy population.

Methods: Observational, crossectional, single centre study. Fotopic and scotopic microperimetry was performed using with a customized 13-point fovea-centered pattern in healthy volunteers without ocular pathology.

Microperimetry in hydroxychloroquine macular toxicity.

The aim was to evaluate the value of microperimetry (MP) in the early detection of toxic maculopathy caused by HCQ treatment in patients with normal fundoscopy, as well as normal structural optical coherence tomography (OCT). Microperimetry was performed in 13 patients under hydroxychloroquine treatment, who did not present fundoscopic or structural OCT alterations compatible with maculopathy. We used Nidek MP3s equipment (Nidek, Gamagori, Japan) with a 13-point pattern centered in fovea, in mesopic mode and in scotopic mode.

Does real-time artificial intelligence-based visual pathology enhancement of three-dimensional optical coherence tomography scans optimise treatment decision in patients with nAMD? Rationale and design of the RAZORBILL study.

Background/rationale: Artificial intelligence (AI)-based clinical decision support tools, being developed across multiple fields in medicine, need to be evaluated for their impact on the treatment and outcomes of patients as well as optimisation of the clinical workflow. The study will investigate the impact of advanced AI segmentation algorithms on the disease activity assessment in patients with neovascular age-related macular degeneration (nAMD) by enriching three-dimensional (3D) retinal optical coherence tomography (OCT) scans with automated fluid and layer quantification measurements.

Methods: is an observational, multicentre, multinational, open-label study, comprising two phases: (a) clinical data collection (phase I): an observational study design, which enforces neither strict visit schedule nor mandated treatment regimen was chosen as an appropriate design to collect data in a real-world clinical setting to enable evaluation in and (b) OCT enrichment analysis (phase II): de-identified 3D OCT scans will be evaluated for disease activity.

Resident physician concordance in tomographic fluid detection in näive patients with neovascular age-related macular degeneration (AMD).

Purpose: To analyze the presence of subretinal fluid (SRF), intraretinal fluid (IRF) and subretinal pigment epithelial fluid (SRPEF) in näive patients with exudative neovascular AMD at baseline and at one year follow-up and treatment, in clinical practice, and perform a concordance analysis between resident physicians.

Methods: A retrospective analysis of the näive patients who attended our service for 6months between 2016-2017 by neovascular AMD was performed. Optical coherence tomography (OCT), at baseline and at one year follow-up, were analyzed from independently by two resident doctors, determined the presence or not of SRF, IRF, SRPEF.

Structure-Function Correlation Using OCT Angiography And Microperimetry In Diabetic Retinopathy.

Purpose: To evaluate macular vasculature in diabetic retinopathy (DR) with optical coherence tomography angiography (OCTA) and to correlate vessel density (VD) with retinal sensitivity (RS) as a way to assess structural and functional findings in DR.

Design: Prospective observational cross-sectional study.

Methods: Diabetic patients with DR but no clinically significant diabetic macular edema (DME) and healthy subjects were included in this study.

Management of diabetic macular edema patients in clinical practice in Spain.

Purpose: Diabetic macular edema is the main cause of blindness in diabetic patients. Vascular endothelial growth factor is involved in diabetic macular edema pathogenesis. Vascular endothelial growth factor inhibitors are an important option in diabetic macular edema therapy.

Nutritional supplements with omega 3 in retinal disease: Relationship between volume and concentration in commercial products.

Objective: To analyse the morphometric characteristics and the concentration of (docosahexaenoic acid) DHA and eicosapentaenoic acid (EPA) of the different nutritional supplements with omega 3 available on the market for retinal disease.

Material And Methods: A double-blind study was conducted with a single observer, of the different omega 3 supplementation tablets sample marketed in Spain. The length of the tablet, the concentration of omega 3 in total, as well as DHA and EPA were studied separately using the amount provided by the manufacturer and the volume of the capsule calculated from the development of a specific formula for it.

New visual field indices of disharmony for early diagnosis of glaucoma, alone or associated with conventional parameters.

Purpose: To evaluate the specificity of new perimetric indices based on harmony, alone and in combination with structural data, for glaucoma detection.

Methods: In this prospective observational cross-sectional study, one eye of 105 healthy subjects and 97 early and suspect glaucomas were sequentially included and examined with Cirrus optical coherence tomography, twice with OCULUS Smartfield perimeter (SPARK strategy) and twice with Humphrey Analyzer (24-2 SITA-Fast) at the Ophthalmology Department from the University Hospital La Candelaria. Disharmony in the visual field was evaluated including vertical threshold symmetry, threshold rank), and homogeneity (threshold standard deviation from its maximum) using the patient himself/herself as a reference.

Mediterranean diet adherence by patients with primary open angle glaucoma.

Objective: To study the adherence to the Mediterranean diet in patients affected by primary open angle glaucoma (POAG).

Materials And Methods: An observational study was conducted to assess the adherence to the Mediterranean diet in patients affected by POAG, and who attended the Ophthalmology Department of the Canary Islands University Hospital. The study included completing a 14-item questionnaire validated by the PREDIMED Study, in person or by telephone.

Cardiovascular involvement in patients with diabetic macular oedema treated with intravitreal ranibizumab in routine clinical practice.

Objective: To determine the cardiovascular events in naïve patients with diabetic macular oedema, before and after being treated with intravitreal ranibizumab.

Material And Methods: A retrospective and descriptive study was conducted on patients with diabetic macular oedema and foveal involvement, who started treatment with intravitreal ranibizumab in 2014 in the Hospital Universitario Nuestra Señora de Candelaria and the Hospital Universitario y Politécnico La Fe. During the follow-up until August 2015, a record was made of parameters, including the prevalence and incidence of stroke and myocardial infarction.