Related Experiment Video
Updated: Jul 13, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Varix of the vortex vein ampulla
Abstract:
Varix of the vortex vein ampulla is a bulging of the vein and overlying retina into the vitreous. It is of uncertain etiology. The lesion is lightly pigmented and ranges in size from one to three disc diameters. It has a dynamic nature and can be flattened by applying pressure to the globe. Viewing the varix is greatly enhanced with red-free light. Three cases are presented as incidental findings during routine examination, and one as a referral. Varices are a benign condition requiring no treatment.
Related Concept Videos
Veins
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of blood...
Overview of Systemic Veins
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the middle...
Veins of Thorax
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
Veins of the Abdomen and Pelvis
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
Esophageal Varices-I: Introduction
Varicose Veins I: Introduction

