Argus II is the most advanced retina implants approved by US FDA and almost 350 visually impaired people are using it. This implant uses 60 microelectrodes implanted in retina. The goal of this to improve mobility quality life its users. However, users’ satisfaction not very high due low resolution phosphene images features created device. article proposes a system artificial vision visual impl...

Aim: To assess whether retinal vascular caliber measurement from digital fundus photographs using IVAN software (University of Wisconsin, Madison, WI) is affected by bicubic image interpolation using image processing software (Photoshop version 5.5, Adobe Systems Inc., San Jose, CA). Material and methods: 32 good quality optic disc centered retina photos (slides) acquired in healthy volunteers ...

purpose: to report multiple astrocytic hamartomas in a patient with tuberous sclerosis (ts). patient and findings: a 16-year-old girl with ts without any ocular complaint was referred for ophthalmologic examination. she had papular rash on her face and other skin lesions elsewhere in the body which were specific for ts. multiple well-circumscribed elevated lesions characteristic of astrocytic h...

Microglia play a major role in retinal neovascularization and degeneration and are thus potential targets for therapeutic intervention. In vivo assessment of microglia behavior in disease models can provide important information to understand patho-mechanisms and develop therapeutic strategies. Although scanning laser ophthalmoscope (SLO) permits the monitoring of microglia in transgenic mice w...

Early computer-aided early diagnosis (CAD) based on retinal imaging is critical to the timely management and treatment planning of retina-related diseases. However, inherent characteristics images complexity their pathological patterns, such as low image contrast different lesion sizes, restrict performance CAD systems. Recently, ultra-wide-field (UWF) have become a useful tool for disease dete...

We present a new compact multi-modal imaging prototype that combines an adaptive optics (AO) fundus camera with AO-optical coherence tomography (OCT) in a single instrument. The prototype allows acquiring AO fundus images with a field of view of 4°x4° and with a frame rate of 10fps. The exposure time of a single image is 10 ms. The short exposure time results in nearly motion artifact-free high...

Images of the eye ground or retina not only provide an insight to important parts of the visual system but also reflect the general state of health of the entire human body. Automated retina image analysis is becoming an important screening tool for early detection of certain risks and diseases like diabetic retinopathy, hypertensive retinopathy, age related macular degeneration, glaucoma etc. ...

Fundus autofluorescence (FAF), a relatively new imaging modality, focuses on the fluorescent properties of pigments in the retina to generate images that help us view various disease processes from a different perspective. It aids us in the understanding of the pathophysiology of different retinal disorders. Recently, FAF imaging is being used commonly to help us in the diagnosis, prognosis as ...

Blindness, being one of the most common disabilities in humans, is often caused due to various infections anterior and posterior regions Human eye. One reasons include a significant variation levels fluid retina This may be excessive fluids or reduction fluids. paper reviews tools assessment designed towards early detection diagnosis such filled abnormalities. The proposed idea has evaluated me...