Having your vision checked is a crucial part of maintaining your overall health. But what does it actually mean when the eye doctor tells you your vision is 20/35? Is 20/35 vision bad, or is it something you should be concerned about? Let's break down what this number means and what you should do if you receive this diagnosis.
Understanding the Snellen Chart and Vision Acuity
The 20/35 notation comes from the Snellen chart, the familiar eye chart with letters of decreasing size. The top number (20) represents the distance you stand from the chart (20 feet). The bottom number (35) indicates the distance at which a person with normal vision can read the same line of letters.
In simpler terms: someone with 20/20 vision can see at 20 feet what a person with normal vision can see at 20 feet. A person with 20/35 vision can see at 20 feet what a person with normal vision can see at 35 feet. This means that their vision is slightly less sharp than 20/20.
Is 20/35 Vision Considered Legally Blind?
No, 20/35 vision is not considered legally blind. Legal blindness is typically defined as vision of 20/200 or worse in the better eye, even with correction. While 20/35 vision isn't perfect, it's still within the range of what's considered correctable vision.
What Causes 20/35 Vision?
Several factors can contribute to 20/35 vision, including:
- Refractive errors: This is the most common cause, encompassing nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. These conditions are often easily corrected with eyeglasses or contact lenses.
- Eye strain: Prolonged near-work activities, lack of sufficient lighting, or improper screen distance can lead to temporary vision blurring and reduced acuity.
- Underlying medical conditions: In some cases, 20/35 vision might be a symptom of an underlying medical condition affecting the eyes or nervous system. It's crucial to discuss any concerns with your ophthalmologist.
Should You Worry About 20/35 Vision?
While 20/35 vision is not a severe problem, it's important to address it. Untreated refractive errors can lead to eye strain, headaches, and potentially more serious issues over time. Furthermore, difficulty seeing clearly can impact daily activities such as driving, reading, and working.
Treatment Options for 20/35 Vision
The good news is that 20/35 vision is usually easily corrected. Your eye doctor will likely recommend:
- Eyeglasses: These are a common and convenient way to correct refractive errors.
- Contact lenses: These offer a different approach to vision correction, providing a clear and comfortable alternative to glasses.
- Lifestyle changes: If eye strain is a contributing factor, making adjustments to your work habits and screen time can improve your vision.
When to See an Ophthalmologist
If you experience a sudden change in your vision, double vision, or any other vision abnormalities, consult an ophthalmologist immediately. Regular eye exams are also crucial for early detection and management of any eye health concerns.
Conclusion: Don't Ignore Your Vision
20/35 vision isn't necessarily "bad," but it's a sign that your vision isn't as sharp as it could be. Schedule an appointment with your eye doctor to determine the cause and explore correction options. Taking care of your vision is an investment in your overall well-being. Don't delay seeking professional help to ensure you maintain clear and healthy vision for years to come.
