What is used to correct near-sightedness or myopia:

🧠 Explanation:

Concave lenses correct nearsightedness (myopia), where distant objects appear blurry due to improper light focusing. By diverging light rays, these lenses ensure proper focus on the retina, enhancing distance vision. Widely used in glasses and contacts, they’re tailored to individual needs, reflecting optometric advancements. This correction improves daily life for millions, enabling clear vision for tasks like driving or reading signs. Concave lenses are a cornerstone of vision care, showcasing the intersection of physics and healthcare in addressing common visual impairments, making activities safer and more accessible for those with myopia worldwide.