INTRODUCTION Human vision is characterized by consistent shifts between fixations and saccadic eye movements. With each saccade, internal object representations change their retinal position and spatial resolution which raises the question as to how extra-foveal perception is affected by upcoming saccadic eye movements. Recently, we suggested that saccades are accompanied by a prediction of the...

PURPOSE To determine the retinal features seen on enhanced spectral-domain optical coherence tomography (SD-OCT) associated with foveal retinal detachment in eyes with myopic macular retinoschisis. DESIGN Retrospective case series. METHODS We reviewed fundus photographs and conventional and enhanced SD-OCT images of 21 eyes of 19 patients with myopic macular retinoschisis. Features seen on ...

The visual system extracts average features from groups of objects (Ariely, 2001; Dakin & Watt, 1997; Watamaniuk & Sekuler, 1992), including high-level stimuli such as faces (Haberman & Whitney, 2007, 2009). This phenomenon, known as ensemble perception, implies a covert process, which would not require fixation of individual stimulus elements. However, some evidence suggests that ensemble perc...

Recent work has shown that foveal cortex, deprived of its normal bottom-up input as a result of macular degeneration (MD), begins responding to stimuli presented to a peripheral retinal location. However, these studies have only presented stimuli to the "preferred retinal location," or PRL, a spared part of the peripheral retina used by individuals with MD for fixating, face recognition, readin...

Visual space is retinotopically mapped such that peripheral objects are processed in a cortical region outside the region that represents central vision. Despite this well-known fact, neuroimaging studies have found information about peripheral objects in the foveal confluence, the cortical region representing the fovea. Further, this information is behaviorally relevant: disrupting the foveal ...

Three cases who underwent surgery in different areas of the craniofacial region were reported with bradycardia developing intraoperatively during flap traction. Many cases of the oculocardiac reflex during treatment of the orbital region have been reported in the literature. This manuscript recorded that reflex bradycardia can occur during traction or stretching of any structure innervated...

A 64-year-old Ashkenazi male, disably retired international business lawyer, presented to author, DLK, on August 28, 2002, for evaluation of several years of decreasing vision of both eyes. Family history was medically and neurologically negative. Severe constipation began at age 40. Rectal and colonic manometric studies led to a diagnosis of " inert colon " from both sensory and motor denervat...

Measurements of sensitivity and color discrimination suggest that an area roughly 25’ in diameter in the central fovea lacks functioning blue-sensitive cones. Alternative explanations such as screening by macular pigment or Troxler fading are shown to be unable to account for the results. Evidence is presented that residual B cone-mediated color discrimination found in this and previous studies...