What is lean enterprise and why is it essential your businesses' survival? Read part one in a series of nine articles about lean enterprise from VIPGroup.
The numerical aperture of a microscope objective defines the objective's resolution. Each microscope objective has a minimum and maximum magnification necessary for the details in an image to be resolved. A simple formula for the minimum value is (500 x NA). And for the maximum magnification (1000 x NA).
Non-arteritic anterior ischemic optic neuropathy (NAION) refers to loss of blood flow to the optic nerve (which is the cable that connects the eye to the brain).This condition typically causes sudden vision loss in one eye, without any pain.inally, it is called an âoptic neuropathyâ because it is an injury to the optic nerve, which disrupts the ability of eye to send information to the brain. The eye examination for a patient with NAION shows swelling of the optic nerve (arrows), due to injury from. reduced blood flow.