Single-vision

Single-vision refers to a type of corrective lens designed to provide clear vision at a single distance, either near, intermediate, or far. These lenses correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism, but they are not designed to address multiple vision problems simultaneously, unlike progressive lenses or bifocals. The term highlights the lens's singular focus compared to multi-focal alternatives. Choosing single-vision lenses depends on an individual's specific visual needs and lifestyle.

Single-vision meaning with examples

• A student struggling to see the whiteboard clearly might be prescribed single-vision lenses to correct their nearsightedness. These lenses would be specifically designed for distance vision, allowing them to focus on the board during lessons. The student would still need additional lenses or other solutions for reading or working close up if they required it. This is a common example.
• Someone who primarily works at a computer all day might opt for single-vision lenses optimized for intermediate distance. These lenses provide clear vision at the focal length of their computer screen, reducing eye strain and improving comfort during long work sessions. This is a standard use for this lens.
• After a comprehensive eye exam, an individual diagnosed with mild farsightedness might receive single-vision glasses to aid in reading. These lenses correct the refractive error preventing blurred vision. The lenses focus on correcting the issues at one distance, rather than needing multiple lens corrections.
• When driving, if far-sightedness is the issue, single-vision lenses can improve the ability to focus on road signs. Corrective lenses for this common visual issue helps with safety on the road, providing clear sight and improving reaction times while preventing eye strain and fatigue that can occur from squinting to focus.