Eye: Diagnostic Tests and Procedures

measure of the ability to see the details and shape of identifiable objects from a specified distance, typically using a Snellen chart

visualization and photography of retinal and choroidal vessels made as fluorescein dye, which is injected into a vein, circulates through the eye

use of an opthalmoscope to view the interior of the eye

measurement of refractive errors using a phoropter to determine best corrected vision and prescription for eye glasses or contact lenses

instrument that holds corrective lenses in front of the eye to determine optical correction

use of a tabletop microscope to examine the eye, especially the cornea, lens, fluids and membranes

use of high-frequency sound waves to detect pathology within the eye such as foreign bodies or a detached retina

use of a tonometer to measure intraocular pressure, which is elevated in glaucoma