Yksivahvuuslinssit

Yksivahvuuslinssit, also known as single vision lenses, are the most common type of prescription eyewear. They are designed to correct vision at one specific focal distance. This means that a single vision lens has one prescription power across its entire surface. People who need single vision lenses typically have a refractive error such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism, and their vision is blurry at a particular distance.

These lenses are manufactured to address a single vision problem, whether it's seeing clearly up close, far away, or at an intermediate distance. For example, someone who is nearsighted would receive a single vision lens that corrects their distance vision, allowing them to see far objects clearly. Conversely, someone with presbyopia who struggles with reading might use single vision reading glasses, where the lens corrects their near vision specifically. The prescription is uniform throughout the lens, unlike multifocal lenses which have different correction powers in different zones. This simplicity makes them a straightforward and often more affordable option for vision correction.