Category: P

A surgical operation to crush the phrenic nerve in order to paralyse the diaphragm. Surgical crushing of a portion of the phrenic nerve. This paralyzes the diaphragm on the side operated upon, which is then pushed up by the abdominal contents, so pressing on the lung and partially collapsing it. Deliberate collapsing of the lung…

Phosphorescent urine. The excretion of phosphorescent urine, which glows in the dark, due to the presence of certain phosphorus-containing compounds derived from phosphates.  

Making the skin unusually sensitive to damage by light, as in sunburn. To the harmful reaction produced by light energy, especially that produced in the skin. Simple sunburn of the skin is an example of phototoxicity. A substance which increases the skin’s sensitivity to natural or simulated sunlight, sometimes resulting in unsightly pigmentation. Inducing an…

Damage to a retina caused by looking directly at the sun. Damage to the retina caused by looking at the sun without adequate protection. Inflammation of the retina due to prolonged exposure to intense light. Damage to the retina of the eye caused by looking at the sun without adequate protection for the eyes. The…

A rod or cone in the retina, which is sensitive to light or colour.  

Vision which is adapted to bright light such as daylight, using the cones in the retina instead of the rods, which are used in scotopic vision.  

Inflammation of the eye caused by bright light, as in snow blindness. Inflammation of the eye due to exposure to light. It is usually caused by the damaging effect of ultraviolet light on the cornea, for example in snow blindness.  

Having an unusual fear of light.  

The chemical action of light on sensitive film. The act of taking pictures with a camera.  

Produced by the action of light.