Patient Portal: Login

Request Appointment
Call Us 559-449-5050
Category

Astigmatism

Home Archive for Astigmatism

how to read astigmatism prescription

If you’ve ever looked at your eye prescription and felt completely lost, you’re not alone. Most prescriptions are filled with abbreviations, numbers, and terms that don’t mean much unless an eye doctor explains them. Astigmatism prescriptions can seem even more confusing because they include extra measurements beyond basic vision correction. The good news is that once you understand what each section means, reading your prescription becomes much easier. In this guide, we’ll walk through every part of an astigmatism prescription and explain what those numbers are actually telling you about your eyes.

Continue reading How to Read Your Astigmatism Prescription?

Astigmatism after LASIK

Key Takeaways

  • Astigmatism after LASIK can occur due to incomplete correction, healing differences, or natural age-related eye changes.
  • Most cases are mild and stabilize over time, but persistent symptoms may require evaluation.
  • Common signs include blurred vision, glare, halos, eye strain, and headaches.
  • Treatment options include LASIK enhancement, lens adjustment, corneal procedures, or glasses and contact lenses.
  • Early evaluation helps determine whether changes are part of normal healing or require corrective treatment.

LASIK is highly effective at correcting astigmatism. About 99% of patients achieve 20/40 vision or better, and nearly 90% reach 20/20 or better after surgery. Still, some people notice blur or distortion later and wonder if astigmatism after LASIK is possible. Yes, it is. However, the good news is that in most cases, it’s manageable. Let’s learn more!

Continue reading Astigmatism After LASIK: Causes, Symptoms & Treatment Options

can LASIK Fix Astigmatism

Astigmatism can cause blurry, distorted vision that makes everyday tasks more difficult. It’s common for people to ask, Can LASIK fix astigmatism, especially when they’re looking for a long-term solution. In most cases, LASIK eye surgery can effectively correct the irregular curvature of the cornea. This guide explains how the procedure works and whether it may be the right choice for you. 

Continue reading Can LASIK Fix Astigmatism?

eye glasses with prescription

The astigmatism severity scale classifies how much astigmatism you have, measured in diopters (D). The value comes from the CYL (cylinder) number on your eye prescription. Severity depends only on the size of that number, not on whether it is written with a minus or a plus sign.

  • Mild: less than 1.00 D
  • Moderate: 1.00 D to under 2.00 D
  • Severe: 2.00 D to under 3.00 D
  • Extreme: 3.00 D or higher

Some prescriptions and clinics write these values without a decimal point. A CYL of “100” means 1.00 D, “75” means 0.75 D, and “50” means 0.50 D.

Astigmatism is a refractive error caused by an irregularly curved cornea or lens. Instead of focusing light to a single point on the retina, an astigmatic eye focuses it to more than one point, which produces blurred or stretched vision at both near and far distances.

Eye care professionals measure astigmatism in diopters and record it as the cylinder value on a prescription. That number places your astigmatism into one of four severity bands, and the band determines which correction options are appropriate — from no correction at all, through eyeglasses and toric contact lenses, to refractive surgery.

This guide explains what each band means, how to read the numbers on your own prescription, and what typically happens at each level of severity.

Continue reading Astigmatism Severity Scale: Mild, Moderate, Severe and Extreme

Irregular shape of your eye’s cornea or lens

Are you wondering about the distinctions between Keratoconus and Astigmatism? You’ve arrived at the correct link! These two eye disorders are commonly confused with one another, but they are not the same. Understanding the differences between them is critical for accurate diagnosis and treatment.

So, strap in and prepare to plunge into the realm of eye health because you are going to discover the differences between these two in detail in terms of symptoms, causes, diagnosis, and treatment. Let’s get started with Keratoconus vs Astigmatism!
Continue reading Keratoconus vs. Astigmatism – What You Need to Know!

contact lens with astigmatism​

Astigmatism is a common vision health concern. It occurs when the cornea or lens of the eye has an irregular shape, which causes blurred or distorted vision. However, you don’t need to worry if you have this eye condition, as it is relatively manageable.

So, can you wear contacts with astigmatism to correct your vision? The simple answer is yes. You can wear contact lenses with astigmatism. However, it is essential to understand the different types of eyewear available for astigmatism and how to choose the right one. Let’s explore more!

Continue reading What are the Types of Contacts You Can Wear With Astigmatism?

Astigmatism vs Myopia

Wondering about astigmatism vs. myopia? You’re not alone; these common vision problems often overlap and cause similar symptoms. Myopia (nearsightedness) causes blurry distance vision because the eyeball is too long, focusing light in front of the retina. Astigmatism causes blurry or distorted vision at all distances because the cornea or lens has an irregular shape, scattering light across multiple points. Both are refractive errors correctable with glasses, contact lenses, or surgery
Continue reading Astigmatism VS Myopia (Nearsightedness): What is the Difference?

What Causes Astigmatism to Worsen

Astigmatism is more common than most people think. About 33% of people in the U.S. have astigmatism, often dealing with blurred or distorted vision caused by an irregularly shaped cornea or lens. 

While mild astigmatism may stay stable, factors like aging, genetics, eye strain, and past eye injuries can cause it to worsen over time. Understanding what contributes to these changes can help you spot new symptoms early and know when to see an eye care professional.

Continue reading What Causes Astigmatism to Worsen?

Astigmatism in Children

What is Astigmatism in Children?

Astigmatism is the imperfection of the cornea’s curvature or lens. The cornea is the transparent layer on the outside of the eye that transmits and focuses the entry of the light into the eye.

Continue reading Astigmatism in Children: Causes, Symptoms & Treatment

Astigmatism lights while driving at night

It’s not every day that you see people talking about interesting facts about eyesight. But how much do you know about your eye health? There are some who are blessed with perfect 20/20 vision, while others are completely blind. But what about people with certain eye conditions? How can you tell if you have poor vision at all?

Imagine driving down a dimly lit road at night and seeing lights that seem to stretch out in unusual ways. For people with astigmatism, this is a common occurrence that can not only be frustrating but also potentially dangerous. Astigmatism lights appear streaky, blurry, or haloed, and this can severely impair your ability to drive safely at night. So what exactly is astigmatism, and how can you take measures to ensure that your night driving experience is as safe as possible?

In this article, we’ll explore the answers to these questions and provide you with some practical tips to help you drive safely with astigmatism.

Continue reading What Does Astigmatism Look Like? Astigmatism Lights & Night Driving

Request your appointment

Request now & we will get back to you as soon as possible.

Request Now
Call Us 559-449-5050

Main Office

  • 1360 East Herndon Ave., Suite
    #103 & 201 Fresno, CA 93720
  • Phone:  (559) 449-5050

Spruce Office

  • 1275 E Spruce Ave Ste 101,
    Fresno, CA 93720
  • Phone:  (559) 449-5050

Fresno Surgical Hospital

Copyright © InSight Vision Center. All Rights Reserved | Security Policy | Privacy Policy | Nondiscrimination Statement