Save. While an ophthalmologist and an optometrist both work in the eye health care field, there are distinct differences between the two professions. An ophthalmologist who specializes in a variety of eye disorders and conditions, while an optometrist generally checks eyes for the prescription of corrective lenses.
n something that bulges out or is protuberant or projects from its surroundings. âthe bony excrescence between its hornsâ. either prominence of the frontal bone above each orbit. prominence on the outer surface of the occipital bone. a part that bulges deeply.
Definition and cause. Osteomalacia is a state of depletion of calcium from the body's bones due to lack of vitamin D. Vitamin D enables the body to absorb calcium and phosphate from the gut while limiting the elimination of calcium in the urine and thus maintain an adequate calcium level in the body.steomalacia can thus occur in the absence of intake of vitamin D e.g. in diseases of malabsorption, where the uptake from the intestine is impaired or in lack of sunlight, for example as seen in some Muslim women, who are completely covered.