One of the most common questions about eyeglasses is, “How do they improve my vision?” The purpose of eyeglasses, San Diego area, is to correct a person’s vision problems. This is done by improving one’s vision from any distance. Typically, vision problems arise due to problems with how light focuses on the retina. The retina is located near the optic nerve and transforms light into signals that are passed on to the brain. This process is how images are formed.
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Refractive errors cause nearsightedness
Nearsightedness, or myopia, is caused by refractive errors in the eye. The lens or cornea has an abnormal curvature, which makes it curved differently than it should be. This causes the image to appear blurry when it reaches the retina. Thankfully, the eye can correct this by making the image clearer by moving the focus.
Wearing eyeglasses for myopia is a proven way to improve vision. In fact, it’s been shown to work in a multi-site trial involving 256 children. These children were randomly assigned to receive glasses designed to correct nearsightedness, while those with weak prescriptions received glasses that did not improve their vision. This demonstrates how important early intervention is for preventing high levels of myopia.
Presbyopia
Presbyopia is a condition that causes blurred vision when one is near objects. It is a common condition that affects almost every adult at some point in their life. Fortunately, presbyopia can be corrected with glasses or contacts. If glasses or contacts are not effective, surgery may be necessary. It is important to have regular eye exams to determine the exact cause of the problem and your options.
Progressive lenses
Progressive lenses are great for people with aging eyes. They improve vision by eliminating lines and allowing users to see clearly at all focal ranges. These lenses are also often clearer than other lens styles and are designed to look like normal glasses. They can be easily adjusted to the wearer’s individual frame.
Pinhole glasses
Pinhole glasses work by improving one’s vision by engaging eye muscles that focus the lens. When eye muscles are stressed or lazy, they do not perform their organic range of focusing. Wearing pinhole glasses regularly helps the brain to develop a new relationship with the eye muscles. Many people notice an improvement in their vision within a few weeks. When used regularly, the glasses can even improve reading skills.
Orthokeratology
Orthokeratology, otherwise known as Ortho-K, is a revolutionary new treatment for nearsightedness. The lenses are custom-made to gradually reshape the cornea to improve vision. These lenses can also help treat astigmatism and presbyopia. They are non-invasive and painless. The treatment has a high success rate.
Multifocal lenses
Multifocal lenses improve vision by merging three different prescriptions into a single lens. This allows the wearer to see clearly at different distances. The power of each lens varies from top to bottom, so the upper portion of the lens corrects the distance vision, while the lower portion corrects the near vision. The lenses can cause some blurring in the edges of your vision if you are looking at objects close to your face.
Break-in period
Many people have trouble seeing clearly at first, especially after purchasing new eyeglasses. While some people can adjust to a new pair of eyeglasses almost immediately, others must undergo a break-in period before they begin seeing clearly. This process is similar to that of breaking into a new pair of shoes. The new eyeglasses should feel comfortable and help a person see better.
