Ablation, also known as catheter ablation, is a treatment that aims to control or correct certain types of abnormal heart rhythms. It uses either heat (radiofrequency ablation) or freezing (cryoablation) on the area of your heart thatâs causing the abnormal heart rhythm (or arrhythmia). This treatment creates scar tissue which: breaks abnormal circuits in the heart; destroys areas of the heart muscle which are triggering arrhythmias.
Medical Definition of RHODOPSIN. : a red photosensitive pigment in the retinal rods of marine fishes and most higher vertebrates that is important in vision in dim light, is quickly bleached by light to a mixture of opsin and retinal, and is regenerated in the darkâcalled also visual purple. a red photosensitive pigment in the retinal rods of the eye of most vertebrates that is important in vision in dim light âcalled also visual purple. ADVERTISEMENT.
It is part of the rod cells that are responsible for night vision. Rhodopsin is found in the membrane of the retina. The retina is the part of the eye that contains cells that detect light. There are rod cells there that respond to dim light, and cone cells that give color vision in bright light.he rod cells contain the pigment rhodopsin, which is highly sensitive to light. To enable humans to see at night, it absorbs green-blue light most strongly and appears purplish in color. Therefore, another name for this compound is visual purple.