Progressive Lenses vs Bifocals: What's the Difference and Which Is Right for You

If you've recently been told you need multifocal lenses, you've probably heard two terms come up: progressives and bifocals. Both correct vision at multiple distances, but they work quite differently. Here's a straightforward breakdown to help you understand the difference — and figure out which might work best for your lifestyle.

What Are Bifocals?

Bifocals have been around since the 1700s (Benjamin Franklin is often credited with the concept). They have two distinct optical zones in a single lens: the upper portion corrects for distance vision, and the lower portion corrects for near vision, like reading. The line between the two zones is visible — there's a clear, horizontal dividing line on the lens.

Bifocals are reliable and predictable. Once you know where the line is, your eyes adjust quickly. Many long-time bifocal wearers prefer them precisely because of this simplicity.

Who Are Bifocals Best For?

People who primarily need reading and distance correction. Those who do a lot of close-up work (reading, sewing, crafts). People who have tried progressives and found the adjustment difficult. Those who prefer a no-fuss, straightforward lens.

What Are Progressive Lenses?

Progressive lenses, sometimes called "no-line bifocals" or "varifocals," offer a gradual transition between distance, intermediate, and near vision — all within a single lens, with no visible line. The top of the lens is for distance, the middle for intermediate (like computer screens), and the bottom for close-up reading.

Because there's no abrupt line, progressive lenses look more like regular single-vision lenses from the outside. They also provide that intermediate zone, which bifocals do not — making them particularly valuable for people who use computers or digital devices frequently.

Adjustment Period for Progressives

The main challenge with progressives is that they require an adjustment period — typically one to two weeks. During this time, some people experience mild distortion on the peripheral edges of the lens or a slight feeling of "swimming" when they move their head. This is completely normal and resolves for the vast majority of wearers.

First-time progressive wearers in London, Ontario and across Canada generally report that once they've adjusted, they never want to go back to bifocals.

Who Are Progressives Best For?

People who want a modern, seamless appearance. Those who use digital devices or computers regularly. Active people or professionals who need to shift focus frequently. Anyone who wants correction across all three distances (far, intermediate, near).

Cost Considerations

Generally speaking, progressive lenses cost more than bifocals due to the more complex lens design and manufacturing process. However, the cost difference varies by brand, material, and coating options. Many optical stores in London, Ontario carry progressive lenses across a wide range of price points.

The Bottom Line

If you value simplicity and fast adjustment, bifocals are tried and true. If you want a more natural visual experience with no visible line and coverage at all distances, progressives are worth the investment and the brief adjustment period.

Got your exam done and looking to explore your lens options? Feel free to stop by West Sight Optical anytime — no appointment needed. We're happy to walk you through your choices and help you find the right fit.