Visual Flow can be defined as the amount of visual information that passes in front of the eyes per unit of time. There are studies over visual perception that concludes that the human eye integers the signals during a period of time of 120-125 ms [1]. Thereby, an image that moves remaining visible for a time lower that 125 ms will appear blurred. Nevertheless, following objects in movement wit...

A better study of postnatal retinal development is essential for the in-depth understanding nature vision system. To date, quantitative analysis primarily limited to endpoint histological examination. This validate in vivo optical coherence tomography (OCT) longitudinal monitoring developing mouse eyes. OCT images C57BL/6J mice were recorded from day (P) 14 P56. Three-dimensional (3D) frame reg...

Retina is a part of the central nervous system derived from the neuroectoderm and made up of 5 layers.In this study, the changes in the thickness of the retinal layers as a consequence of diabetes and effect of Aloe Vera gel extract in male rats were assessed. Thirty Sprague Dawley adult male rats (175 ± 25 g) in two age groups (4 and 8 weeks) were divided into 6 groups of 5 as control, diabeti...

Melanopsin-expressing photosensitive retinal ganglion cells (pRGCs) represent a third class of retinal photoreceptor. These cells are intrinsically photosensitive, but also receive inputs from rod and cone photoreceptors, acting as the primary sensory conduit mediating non-image-forming responses to light. Multiple subtypes of pRGC have been described in the mouse retina with characteristic mor...

As a nonintrusive method, the retina imaging provides us with a better way for the diagnosis of ophthalmologic diseases. Extracting the vessel profile automatically from the retina image is an important step in analyzing retina images. A novel hybrid active contour model is proposed to segment the fundus image automatically in this paper. It combines the signed pressure force function introduce...

Abstract Background: Imaging is an important tool for diagnosis of hypertension and diabetes all physicians. In the US, 300 million smartphones were purchased in 2019. Purpose: A smartphone-based ophthalmoscope fundus imaging was compared to office based retina camera evaluate average time spent on each device. Methods: Inclusion criteria: Patients with 20/20-20/50 vision, informed consent obta...

Our world appears stable, although our eyes constantly shift its image across the retina. What brain mechanisms allow for this perceptual stability? A recent study has brought us a step closer to answering this millennial question.

We introduce our Transform Imager Technology and Architecture. This approach allows for Retina and higher-level bio-inspired computation in a programmable architecture that still possesses similar high-fill factor pixels of APS imagers. This imager is capable of programmable matrix operations on the image, where we can represent the image as either a full matrix or using block matrix operations...