The diaphragm is the primary muscle used in respiration, which is the process of breathing. This dome-shaped muscle is located just below the lungs and heart. It contracts continually as you ...

It has to be assumed, therefore, that the iris diaphragm is centred permanently and accurately to the optic axis of the substage condenser, its perfection therefore depending on the extent to ...

AACHEN, Germany — An artificial iris diaphragm may help salvage severely traumatized eyes despite the potential complications, a study here suggests. G. Keller and colleagues retrospectively ...

The Reper artificial iris is a customizable iris diaphragm that incorporates an IOL and has three small holes for scleral fixation.