Dry eyes. Xerophthalmia can be associated with systemic diseases, such as Sjogren’s syndrome, systemic lupus erythematosus, and rheumatoid arthritis; deficiency of vitamin A; and use of some medications. It results from inadequate function of the lacrimal glands, which produce tears. When xerophthalmia is due to vitamin A deficiency, the condition begins with night blindness and conjunctival xerosis (dryness of the eye membranes), progresses to corneal xerosis (dryness of the cornea), and in its late stages develops into keratomalacia (softening of the cornea). Treatment depends on the severity of the condition and ranges from artificial tears and ointments to plugging of the tear ducts. Also known as conjunctivitis arida.
A picture of the body recorded on paper rather than on film. Also called a xerogram. From the Greek “xeros” meaning “dry.”
The process of making a type of dry x-ray in which a picture of the body is recorded on paper rather than on film.
Abnormal dryness of the skin, mucous membranes, or conjunctiva (xerophthalmia). There are many causes of xerosis, and treatment depends on the particular cause.
Dry mouth. Xerostomia can be associated with systemic diseases, such as Sjogren’s syndrome, systemic lupus erythematosus, and rheumatoid arthritis; and it can be a side effect of medication and poor dental hygiene. Xerostomia results from inadequate function of the salivary glands, such as the parotid glands. Treatment involves adequate intake of water, use of artificial […]
- Xiphoid process
The lower part of the breastbone. The xiphoid process has no particular function and ranges in size from miniscule to several inches in length.