American Board of Ophthalmology (ABO) Practice Exam

Which type of optics is utilized for vision correction in glasses?

1. Fresnel optics

2. Geometric optics

3. Quantum optics

4. Physical optics

The correct answer is: Fresnel optics

The correct answer highlights the use of Fresnel optics in vision correction for glasses. Fresnel optics is characterized by its unique design, which employs a series of concentric grooves to create a lens that is thinner and lighter than traditional lenses while still effectively bending light to correct vision. This design is particularly beneficial in applications where reducing weight and thickness is advantageous, such as in high prescription lenses or specialized eyewear. Fresnel lenses allow for the correction of a range of visual impairments by manipulating the path of light as it passes through the lens, thereby helping to focus light onto the retina appropriately. This principle is essential for creating eyewear that meets the specific refractive needs of individuals with myopia, hyperopia, or astigmatism. On the other hand, the other types of optics mentioned are less applicable in the context of standard vision correction. Geometric optics primarily deals with the ray model of light and involves the principles of light propagation and the formation of images but does not specifically pertain to the unique lens designs used in corrective eyewear. Quantum optics focuses on the quantum mechanics of light and its interactions with matter, which is not relevant to the practical application of lenses for vision correction. Physical optics considers phenomena like interference and diffraction but does