Types of Rx Lenses
| Single Vision | Bifocals & Trifocals | Progressive Lenses |
|---|---|---|
| Single-vision lenses correct one field of vision and have the same prescription throughout the lens. | Multifocal lenses correct more than one field of vision and have different prescriptions throughout the lens. | Progressive lenses allow the eye to focus smoothly between distances without a "jumpy" effect. |
| They can be used to correct nearsightedness, farsightedness, astigmatism, or a combination of these disorders. | Bifocals are the most common. The top part of the lens corrects distance vision and the lower part is for near vision. A visible line divides the two. | Progressives also lack visible lines, unlike regular bifocals or trifocals, giving a flattering appearance. |