Spherical aberration, in the context of optical systems such as lenses for your glasses, is the deviation of light rays as they pass through the lens. This, in turn, causes images to appear blurred. A lens that is functioning correctly will focus all rays of light that pass through it into a single focal point.
Category Archives: Optical Centre
Nearsighted Glasses – What you need to know
If you find that your eyesight isn’t perfect, then you may need a pair of distance glasses. Our vision can change over time due to age, eye injuries, dry eyes, health conditions, genetics, and even smoking.
What Are Polarised Sunglasses?
Polarized sunglasses are high-functioning glasses with many benefits. While the term may sound familiar, you may have many questions like “what does polarized mean?” and “do I need polarized lenses?”.
UV Protection Sunglasses – How Different Protection Categories Work
All you need to know about different sunglasses UV protection categories. Choose yours based on your needs and lifestyle!
Is there a Difference Between Contact Lens and Glasses Prescription?
Both glasses and contact lenses correct your vision, but you need a separate prescription for each one. In this article we go through the differences between them.
What Causes Blurred Vision?
Blurry vision is an incredibly broad term and as such, can be caused by an incredibly broad range of things.
Myopia
Myopia is the most common cause of impaired vision in people under age 40 and the prevalence of myopia is rising. The WHO estimates that this year, shortsightedness will affect 2.56 billion people.
Trivex vs Polycarbonate Lenses
Even more than the frame or design, the lenses you choose have a big influence on how happy you are with your glasses. When buying glasses, one of the most common mistakes people make is not giving enough thought to the materials, designs, and lens coatings.
What is hyperopia?
At any stage in life, you can develop refractive errors that blur or distort your eyesight. One of these eye conditions is farsightedness, otherwise known as hyperopia.
Parts of Glasses: All You Need to Know
Vision is an aspect of our life that we often take for granted. For many of us, it’s not until we are told that we require vision correction that we realize how much vision improves our quality of life every day.