Question

At least some of you are bound to have vision problems that you correct, or have corrected, with glasses, contact lenses, or surgery - or know someone who has. If you're comfortable, please share - or feel free to choose a vision problem - and discuss how it may have come about given what you've read in the text or an outside source.

Answer 1

Myopia, hyperopia, and astigmatism are common vision problems that can be corrected with glasses, contact lenses, or surgery. LASIK surgery is a common method for permanently reshaping the cornea to correct vision problems. Presbyopia, which affects close-up vision, may still require reading glasses even after vision correction procedures.

Step-by-step explanation:

Two common vision problems are myopia and hyperopia. Myopia, also known as nearsightedness, occurs when distant objects appear blurry. It can be corrected with a concave lens, such as glasses or contact lenses. Hyperopia, also known as farsightedness, occurs when nearby objects appear blurry. It can be corrected with a convex lens.

Another common vision problem is astigmatism, which causes uneven focus of the eye. It can be corrected with a spectacle that has the opposite irregularity of the eye. Astigmatism is commonly detected using a chart. The normal corrections for myopia and hyperopia are spherical corrections.

In addition to glasses and contact lenses, vision problems like myopia and hyperopia can be corrected with surgery. LASIK surgery uses a laser to reshape the cornea, allowing light to be correctly focused on the retina. This surgery can provide permanent vision correction, reducing or eliminating the need for glasses or contact lenses.

Presbyopia is another common vision problem that occurs in middle adulthood. It results in difficulty focusing on close objects, such as when reading. Correcting presbyopia with LASIK surgery may improve distant vision but may still require reading glasses for close-up tasks.