Mar 2, 2015 · Band lesions, sometimes called "snail tracks," are classically horizontal lesions with parallel, scalloped, non-tapering edges at the level of the posterior cornea. Below are examples of these lesions in 2 separate patients.

Aug 15, 2013 · Congenital hypertrophy of the retinal pigmented epithelium (CHRPE) lesions are typically solitary, flat, well-demarcated, hyperpigmented lesions of the retina. They can occasionally be seen in a grouped configuration resembling the footprint of an animal, or "bear tracks," as is seen in this photo. Both solitary lesions and "bear tracks" are ...

Groups of the spots, as seen here, are commonly referred to as "polar bear tracks" due to their color and resemblance of animal footprints. It is believed that these spots may develop secondary to deposition of an abnormal white material in retinal pigmented epithelial (RPE) cells rather than the usual darkly pigmented melanin.

Feb 8, 2008 · 3)"Polar bear tracks" 4) Gardner syndrome - multiple spots of RPE pigmentation resembling grouped pigmentation Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution …

Anatomy & Physiology. The visual field corresponds to the topographic arrangement of photoreceptors in the eye. When photons of light are absorbed by the photoreceptor cells of the retina, a cis-trans isomerization of 11-cis chromophore begins the phototransduction cascade, resulting in hyperpolarization of bipolar and horizontal cells, and ultimately activation of …

Apr 6, 2016 · Vessels: Inferotemporal neovascularization (i.e., neovascularization of the retina elsewhere (NVE)) Periphery: Tractional membrane inferotemporally from 7:00 clockwise to 9:00 o'clock with an old neovascular tuft. White without pressure from 12:00 to 5:30 in the mid-periphery. Dilated fundus examination OS

Oct 31, 2016 · OCT can be used to obtain detailed cross-sectional images of the peripheral retina (Figure 3)[1]. OCT: The schisis occurs at the junction between the outer plexiform layer and inner nuclear layer of the neurosensory retina in the typical subtype[2]. Fundoscopy: RS appears as an immobile, dome-shaped elevation of the retina[10]. The height of ...

Jan 23, 2006 · Normal Binocular Single vision requires: Clear Visual Axis leading to a reasonably clear vision in both eyes; The ability of the retino-cortical elements to function in association with each other to promote the fusion of two slightly dissimilar images i.e. Sensory fusion.

The patient is a 45-year-old woman with poorly controlled type I diabetes mellitus who presents with hand motion vision bilaterally.

Intraretinal microvascular abnormalities (or IrMAs) are shunt vessels and appear as abnormal branching or dilation of existing blood vessels (capillaries) within the retina that act to supply areas of non-perfusion in diabetic retinopathy.