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Not everyone has clear vision. Many people need glasses, contact lenses, or other corrective procedures to help with their far or close up vision. When a doctor writes a prescription to correct vision, it includes a number for each eye that is each broken down further into the SPH and CYL.
When you look at your prescription, the important thing to know is the bigger the number, the stronger the prescription and the worse your eyesight. A 1.25 eye prescription refers to the power of the lens used to correct the problem. It can have a plus sign or minus sign preceding it based on the needed vision correction. However, the plus or minus does not indicate good vision versus bad vision. It’s the actual number, as opposed to the plus or minus, indicating the degree of vision correction needed.
Eye doctors use diopters to measure prism power or focal length in the right eye (oculus dexter) and left eye (oculus sinister). They then use that measurement to determine lens power and provide an eyeglass prescription. Additionally, prescriptions include prism measurements, which are abbreviated for base up, base down, base in, or base out.
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1.25 power lens correction is relatively mild. When it comes to corrective vision wear, the further from zero the number, the worse a person’s sight. For many, 1.25 would not warrant prescription eyewear. Many people with 1.25 vision might choose to wear only over-the-counter “reader” glasses to improve their vision.
In cases where a person receives a diagnosis of 2.25 or 3.00 or higher number, prescription glasses are needed to correct the problem.
A 1.25 eye prescription is not bad. It is considered relatively mild and some people won't need prescription eyewear for it.
“Bad” eyesight means someone is unable to see clearly without their glasses. There are degrees of this, and typically, stronger prescriptions ranging from -3.00 to +2.00 are bad.
Problems with vision occur when the functional parts of someone’s eyes – the cornea and the lens – cannot focus light on the retina's distant objects. This is called a refractive error. There are several different kinds of refractive errors, including:
Eye health issues are important at any age, but most people experience a decline in vision as they grow older. Over time, visual acuity declines. This is why we must make eye care and visits to the eye doctor or optician a priority throughout our lives, even with healthy vision.
It’s tempting when your vision isn’t bothersome to skip annual eye exams, especially during times like the COVID-19 pandemic. This can be a mistake. In many cases, the sooner macular degeneration and other eye health issues are detected, the more effective the treatment.
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Some of the most common age-related long-term risks include:
More serious eye health issues that develop as you age include:
A person with a "bad" eyesight couldn't clearly see without glasses. This is usually caused by refractive errors. An annual eye exam is recommended to ensure healthy vision and avoid the long-term risks of bad eyesight.
Treatment is available for correcting a 1.25 eye prescription. The proper treatment varies from person to person, depending on their specific situation.
Some of the most common treatments for correcting vision problems include:
Speak to your optometrist for additional information about correcting or improving imperfect vision.
What Is Photorefractive Keratectomy (PRK. “What Is Photorefractive Keratectomy (PRK)?” American Academy of Ophthalmology, 27 Sept. 2017, www.aao.org/eye-health/treatments/photorefractive-keratectomy-prk.
Publishing, Harvard Health. “The Aging Eye: Preventing and Treating Eye Disease.” Harvard Health, www.health.harvard.edu/diseases-and-conditions/the-aging-eye-preventing-and-treating-eye-disease.