Choosing the right pair of glasses can significantly impact your daily comfort and productivity. For those who need multifocal vision correction, full progressive lenses (commonly called multifocals) and vocational/extended focus lenses offer distinct solutions. But which option suits your needs better?
What Are Full Progressive (Multifocal) Lenses?
Progressive lenses are designed to correct vision across three ranges – near, intermediate, and far. Unlike traditional bifocals or trifocals that have visible lines separating different lens powers, progressive lenses offer a smooth transition between multiple prescriptions without any noticeable lines. This seamless design allows wearers to experience natural vision correction as they move their eyes up and down the lens.
The top portion of the lens is typically optimised for distance vision, making it ideal for activities like driving or watching a presentation. The middle section caters to intermediate vision needs, which is useful for tasks such as using a computer. Finally, the lower segment is crafted for near vision tasks like reading or sewing.
One of the key advantages of full progressive lenses is their aesthetic appeal - since there are no visible lines, they maintain a more youthful look compared to traditional options. Additionally, many users report improved visual comfort and decreased eye strain due to the gradual change in prescription across the lens surface.
Benefits of Full Progressives
· All-in-One Solution - Perfect for individuals who need clear vision at varying distances throughout the day.
· Convenient - No need to switch between different pairs of glasses.
What Are Vocational/Extended Focus Lenses?
Vocational lenses, also known as extended focus lenses, are tailored for specific tasks or work environments. They prioritise intermediate and near vision, offering a wider field of view for these ranges compared to full progressives.
Extended focus lenses have the full reading prescription in the lower zone of the lens and an extended reading or intermediate prescription in the upper zone of lens. The two zones blend together smoothly with a graduation from one prescription to the other and no visible dividing line.
The design of vocational lenses can vary based on the intended use, some may offer wider fields of view at close range while others prioritise intermediate and near zones. By customising the lens shape and power distribution, optometrists can create solutions that cater specifically to an individual’s occupational needs.
Benefits of Vocational Lenses
· Optimised for Specific Tasks - Ideal for office work, crafting, or any activity requiring focus within arm’s length.
· Reduced Eye Strain - Wider intermediate and near zones reduce the effort needed to maintain focus during prolonged tasks.
Which Lens Type is Best for You?
Do you frequently switch between distances (for example driving, reading, and using a computer)? Full progressive lenses may be the better choice. But if you spend most of your time focusing on tasks within an arm’s reach, like computer work, cooking, or crafting then consider vocational lenses for enhanced comfort. Remember that for many people, just one pair of glasses does not optimise their vision for all tasks. Therefore, you may need a pair of full multifocal glasses for everyday use and benefit from an extended focus pair in your work environment.
Your trusted optometrist can assess your vision needs and recommend the most suitable lens type based on your lifestyle and profession. Both full progressive lenses and vocational lenses have their benefits, the best choice ultimately depends on your specific requirements.
If you need advice on eyeglasses or contact lenses, Perth families rely on Abernethy Owens. Book an appointment online now or call 1800 411 744 today.