These signals travel through the optic nerve to the brain, where the visual cortex interprets them, allowing us to see shapes, colors, and details. The brain seamlessly combines information from both eyes to create a comprehensive and three-dimensional understanding of our surroundings. Muscles around the eye control movement, ensuring precise focus on different objects.
How Do I Know If I Need Bifocals?
This remarkable coordination between the eye and the brain provides us with an invaluable sense of sight, allowing us to navigate and interact with the world. But as we age, our vision changes, making having a clear view of the world around us more challenging.
Once we hit our 40s, the need for bifocals, progressive lenses, or reading glasses increases dramatically due to presbyopia. Presbyopia is a condition that makes it difficult for your eye muscles to expand and contract, which is a vital part of focusing. A common visual aid for this condition is the use of bifocal lenses.
While you may think of the stereotypical large, thick glasses with a distinct line from our grandparents' generation, most bifocal lenses manufactured nowadays are such that there is no visual distinction between the different lens types. This seamless look means they appear like any other prescription or reading glasses.
The Difference Between Bifocals And Standard Lenses
Bifocals are eyeglasses with two distinct optical powers to address both near and distant vision needs. They are most commonly prescribed to people with presbyopia, an age-related condition that affects the eyes' ability to focus and unfocus on close-up objects. As individuals age, the natural lens in the eye becomes less flexible, making it harder to shift focus between near and distant objects.
This lens type, as compared to standard prescription lenses, consists of two distinct lens sections:
- Upper Portion (Distance Vision): The upper part of the lens is designed for distance vision. It helps individuals see clearly when looking at objects in the distance, such as road signs or a television screen.
- Lower Portion (Near Vision): The lower part of the lens is for near vision. This area is often in a small, half-moon, or D-shaped segment, and it is specifically designed for tasks that require close-up focus, such as reading or working on a computer.
Bifocals offer a convenient solution for individuals who need help with both distance and near vision without constantly switching between different pairs of glasses. They can be particularly beneficial for activities that require a range of focal distances.
Common Indications For Bifocal Use
It is essential to consult with an eye care professional for a comprehensive eye exam. An eye doctor can assess your vision and prescribe the appropriate corrective lenses if needed. Regular eye exams are crucial for maintaining eye health and addressing any vision changes.
If you're experiencing difficulty focusing on objects at different distances, it might be an indication that you need bifocals. Common signs you might be in need of bifocal lenses include:
- Blurry Vision: If you find that your vision is blurry when looking at objects up close or at a distance, it could be a sign of presbyopia, a common age-related condition.
- Eye Strain: If you experience eye strain or headaches after reading or working on close-up tasks for an extended period, it might suggest a need for bifocals.
- Difficulty Reading Small Print: If you struggle to read small print or hold reading material at arm's length to see it clearly, this could be a sign of presbyopia.
- Squinting: Constantly squinting to see objects at different distances may indicate a vision problem.
Tips For Choosing The Perfect Pair
Lens prescription aside, a good-fitting pair of glasses is going to make life easier. You want something lightweight and durable that you will forget you are even wearing. Facial features are unique, and a pair of glasses should be a custom fit. You want them to stay on the face and not be fiddled with constantly.
As far as materials go, you want something that can withstand being dropped and scratched as much as possible. The better the quality of material and fit, the fewer times you’ll need them adjusted, repaired, or replaced.
Asheville Vision And Wellness Prescription Lens Services
Asheville Vision and Wellness has been helping patients throughout the mountains of western North Carolina with their eye care needs since 1989. We provide comprehensive eye care from annual exams, management of chronic conditions, prescription glasses, contact lenses, and sunglasses.
With three highly qualified and passionate optometrists on staff, let us be your first step toward maintaining healthy eyes and clear vision.
Come see what sets us apart and put yourself on a path to healthier eyes. You can conveniently schedule an appointment online or call on weekdays at 828-747-9260 during our office hours. We would be more than happy to help determine a care plan that helps keep you seeing clearly.