Long-term sun exposure (UV-A and -B light) results in characteristic clinical changes of the skin (eg, wrinkles, lentigines, elastosis, roughness, and sallowness) collectively known as photodamage.1 We observed that a number of our patients have asymmetrical facial photodamage, with the left side of the face appearing more severely photodamaged than the right side. We postulated that this perceived left-sided predominance of severe photodamage may have arisen from exposure to UV light while driving a left-hand-drive automobile. We performed a study designed to test this hypothesis.
A total of 120 patients (age range, 43 to 81 years; mean, 62 years; 105 female and 15 male subjects) were recruited through the mail using a questionnaire that obtained the following information: age, sex, occupation, percentage of time spent as an automobile driver, number of years as a driver, number of hours driven per week, and the percentage of time driving with
Singer RS, Hamilton TA, Voorhees JJ, Griffiths CEM. Association of Asymmetrical Facial Photodamage With Automobile Driving. Arch Dermatol. 1994;130(1):121-123. doi:10.1001/archderm.1994.01690010127031