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habit of eating hair; abnormal craving for nonfood substances (dirt, clay, glue, and the like)
pus-filled (purulent) infection of glands near the eyelid (most often caused by bacteria) aka. hordeolum
procedure in which allergy-causing substances are placed on the skin and a reaction is noted. in the patch test, a patch with a suspected allergen is placed on the skin. the scratch test involves making several scratches and inserting a small amount of allergen in the scratches
bacterial and fungal tests
procedures in which samples from skin lesions are taken to determine the presence of bacterial infection or fungal growth
fluorescein (a contrast substance) is injected intravenously and the movement of blood is observed by ophthalmoscopy. It is used to detect diabetic or hypertensive retinopathy and also degeneration of the macular (central) area of the retina
procedure in which samples of skin lesions are removed and sent to the pathology laboratory for microscopic examination
examination of the anterior eye structures (such as the cornea) using an instrument that projects intense light through a narrow opening for optimal visualization
tuning for tests
procedure in which a vibration source (tuning fork) is placed in front of the opening to the ear to test air conduction of sound waves. the tuning fork is also placed on the mastoid bone behind the ear to test bone conduction of sound waves
middle layer of the skin, containing hair follicles, connective tissue, blood vessels, and glands
transparent structure behind the pupil that bends light rays so that they focus on the back of the eye
transparent layer over the front of the eye that bends light so that it is focused on the back of the eye
microscopic examination of the anterior eye structures, such as the cornea, under intense light
tuning fork tests
a vibration source is placed in front of the opening of the ear to test air conduction of sound waves
a dye is injected intravenously, and movement of blood through blood vessels in the back of the eye is observed with an ophthalmoscope
bacterial and fungal tests
samples from skin lesions are examined to detect presence of microorganisms
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