Spectacle correction refers to the correction of visual impairments using corrective lenses, such as eyeglasses or contact lenses. These lenses are designed to refract light entering the eye in such a way as to correct common vision problems like nearsightedness (myopia), farsightedness (hyperopia), astigmatism, and presbyopia.
Eyeglasses consist of two curved lenses that are mounted in a frame and positioned in front of the eyes. Contact lenses are thin, curved discs that are placed directly on the surface of the eye. Both forms of spectacle correction work by bending light rays as they enter the eye, helping to focus the light on the retina and produce a clearer, sharper image.
The prescription for corrective lenses is determined by an eye doctor and is based on a comprehensive eye exam. The prescription includes specific measurements and information about the individual’s eye, including the shape and size of the cornea and lens, as well as the patient’s visual acuity and refractive error.
Spectacle correction can greatly improve a person’s visual function and quality of life, allowing them to see more clearly and perform daily activities with greater ease. However, it is important to continue regular eye exams and maintain proper lens care and hygiene to ensure continued good vision.