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The Blog

Differences Between Bifocal Readers And Reading Glasses

Your vision may change as you age. You’ll know it’s happening when have to hold your favorite book, the daily newspaper, or a restaurant menu farther away just to read it. This ...
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How Do Progressive Lenses Work? - Koalaeye Optical

What Do Progressive Glasses Mean? Progressive lenses, also called PALs, are the most popular multifocal lenses today. They offer an effective and great-looking vision solution f...
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Why Is My Eyesight Getting Worse? 7 Reasons

Vision can change a lot throughout a person’s lifetime. You may have a good vision when you are young, but the vision becomes worse as you grow older. So, why is my eyesight get...
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How to Choose Reading Glasses - Koalaeye Optical

When you are over 40 years old, you may find that your eyesight becomes worse. When once-crystal-clear words on a page or screen start to blur, it may be a sign that you need re...
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Introduction to the Normal Pupil Size

What Is Normal Pupil Size? Pupils are the black-colored circles in your eyes that allow light to enter. The pupil is surrounded by the colored part of the eye called the iris, w...
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What Is 20/15 Vision? Is 20/15 Better than 20/20?

What Is 20/15 Vision? Vision acuity is used to describe how sharp a person’s vision is. To measure acuity, a person looks at numbers or letters according to a fixed standard at ...
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What Is Depth Perception and How to Fix Depth Perception Issue?

What Is Depth Perception? Depth perception, also called 3D vision or stereo vision, is the visual ability to perceive in three dimensions, judging spatial relationships and dist...
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Central Vision Loss: Causes, Symptoms and Treatments

What Is Central Vision Loss? Central vision is the field of view in the center of your vision as you look straight ahead. It is different from peripheral vision, which is what y...
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Degenerative Myopia: Causes, Symptoms and Treatments

What Is Degenerative Myopia? Degenerative myopia, also called myopia degeneration, pathological, or malignant myopia is an extreme form of nearsightedness that usually begins in...
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What Is 20/25 Vision? What Does 20/25 Vision Mean?

What Is 20/25 Vision? 20/25 vision is a measurement used by an eye doctor to describe your visual acuity, which refers to how clear and how sharp your vision is. Many factors ma...
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4 Suggestions - How to Prevent Myopia from Worsening

Myopia, also called nearsightedness, is caused by a distortion in the shape of the eyeball. Due to the slight distortion, images are located on the front of the retina rather th...
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Here Are 4 Presbyopia Treatments - Koalaeye Optical

What Is Presbyopia? Presbyopia is a refractive error that occurs naturally with age. As we grow older, the proteins in the lenses of our eyes begin to change. These changes can ...
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1.67 vs 1.74 High Index Lenses: What Are Their Differences

High index lenses are eyeglasses lenses that are designed to be thinner and lighter than regular lenses. High-index lenses have a high refractive index than their conventional c...
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What Is Peripheral Vision Test and How Does It Work?

What Is Peripheral Vision? Peripheral vision is the ability to see out of the corner of our eyes. It means that you can see things outside of your direct line of vision without ...
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What Prescription Is Legally Blind? Find Answers Here

If you feel your eyes are discomfort or your eyesight has changed, you may need to a visual acuity test. If there is any problem with your eyesight, the eye doctor or optician w...
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