What are single-vision lenses?

A single-vision lens corrects one vision problem like nearsightedness, farsightedness or astigmatism. Both lenses have an equal prescription strength. The focus is evenly distributed.

Single vision lenses are very common. Full frame readers are one of the most popular examples. Half frame reading glasses have narrower frames and are easy to view near and far objects.

If you need glasses just for driving or reading, single-vision lenses may be suggested.

Advantages of single-vision lenses:

  • Affordability: Single vision lenses are typically more affordable than multifocal lenses. You can correct your vision at a reasonable price.

  • No adaptation period: Single vision lenses usually don't cause headaches or eye strain like progressive lenses may.

Limitations of single-vision lenses:

  • Single vision correction: Single vision lenses can only correct one vision problem. You would need another pair if you develop a new vision issue.

  • Costly long-term: As you may need different single vision lenses over time, the total cost can be high. Strong prescriptions also increase the price.

What are multifocal lenses?

Multifocal lenses have two or more prescriptions in one lens. They are also called progressive lenses. The gradual power change allows clear vision at different distances.

The seamless transition between prescriptions makes multifocal suitable for age-related vision changes. You don't have to switch glasses for near and far vision tasks.

Advantages of multifocal lenses:

  • Convenience: No need to switch between multiple pairs of glasses. One pair works for all activities.

  • Multi-range focus: You maintain sharp vision at any distance. Perfect if your tasks require different focuses.

  • Slow myopia progression: Studies show multifocal lenses can slow nearsightedness progression in children.

Disadvantages of multifocal lenses:

  • Adaptation period: Multifocal lenses may cause blurred periphery, headaches, eye strain at first. You need time to adapt.

  • Expensive: Multifocal lenses cost significantly more than single vision, around $100 more.

In summary, multifocal lenses are great if you rely on glasses to see clearly. For situational use like reading, single vision may be more practical. Consult your eye doctor to determine the best choice based on your vision needs.

July 21, 2023 — JR.Arnold Trent