New Jersey State Board Esthetics Practice Exam

When utilizing a magnification lamp, how is magnification measured?

1. Millimeters

2. Diopters

3. Candela

4. Lux

The correct answer is: Diopters

Magnification in the context of a magnification lamp is measured in diopters. A diopter is a unit of measurement that represents the optical power of a lens, specifically how much the lens bends light. One diopter corresponds to the optical power of a lens that focuses light at one meter away. The higher the number of diopters, the greater the magnification. In esthetics, magnification lamps often range from 3 diopters (which provides basic magnification) to 5 diopters or higher, allowing estheticians to closely examine the skin's surface, pores, and other details, which is crucial for effective skin analysis and treatment. Understanding this measurement is vital for estheticians to select the appropriate equipment for their practice and to provide accurate care.