Category

Astigmatism

Astigmatic vision

Most people have some degree of astigmatism and yet there are so many people who are still confused and may miss out on signs of astigmatism. Here are some common facts about astigmatism and the symptoms you should look out for and the steps you can take to treat them.

Facts about Astigmatism:

  1. Irregularly-shaped Cornea
    Astigmatism is caused by an irregularly-shaped cornea which makes it look more like a football than a normal spherical-shape structure. A cornea with a rounder shape controls the amount of light that enters, allowing you to see things around you clearly. An irregularly-shaped cornea prevents an even distribution of light, resulting in blurred vision.
  2. Genetic Component
    An irregularly-shaped cornea is a genetic trait, just like the color of your eyes that may have passed from one generation to the next. So, if you start experiencing blurry vision over time, it may be unquestionably out of your control.
  3. Untreated Astigmatism
    Astigmatism symptoms should be caught early, especially in children. If overlooked, it can result in more serious and permanent conditions like amblyopia, commonly known lazy eye. Regular eye exams should be an essential part of your child’s growing years to avoid further complications.
  4. Astigmatism affects Depth Perception
    The ability to see in three dimensions and judge the distance of an object is called depth perception. Eye conditions like astigmatism make depth perception issues more prominent. This makes it difficult to determine the proximity of certain objects or the distance between two objects. Astigmatism blurs the edges and outlines of things you see. So even if your depth perception is not affected, the overall quality of your vision may be poor nonetheless.
  5. More than One Category of Astigmatism
    Astigmatism has more than one category. An irregular-shaped cornea is called corneal astigmatism. While the shape of the lens being distorted is known as lenticular astigmatism. Both result in distorted vision when looking at objects near and far.
  6. LASIK surgery
    Lasik surgery can permanently reshape the cornea, guiding it to a rounder shape that helps you see clearly. Expect a sharper than ever vision without having to deal with corrective lenses.
  7. High Blood Sugar Levels
    High blood sugar levels can affect the shape of the lens that is responsible for the focusing power of the eye. Eye problems are collectively referred to as diabetic eye disease. It commonly includes diabetic retinopathy, where the tiny blood vessels in the retina are damaged, but may also include cataracts and glaucoma.
  8. Vigorous rubbing of the eyes
    Constantly rubbing your eyes can cause damage to the cornea and eventually result in increased pressure and irregular change in the shape of the eye.
  9. Degrees of Severity
    A person with mild astigmatism has < 1.00 dioptre, a person with moderate astigmatism has 1.00 to 2.00 dioptres, a person with severe astigmatism has 2.00 to 3.00 dioptres and a person with extreme astigmatism has > 3.00 dioptres. People with astigmatism may suffer from headaches, tired eyes and experience sensitivity to bright lights. At times, near-sighted people may squint to improve their vision.

If you’re looking for an experienced Ophthalmologist in Fresno, book an appointment with us today and allow our helpful clinical staff at Insight Vision Centre to bring back those healthy eyes.

effect of astigmatism on driving

Astigmatism is a common eye condition that occurs when the cornea is irregularly shaped. An irregularly shaped lens or cornea obstructs the light that should focus correctly on the retina.

The condition worsens at night or in low light conditions since the pupil dilates in need of more light. If you have astigmatism and wear toric lenses, you may still experience poor vision at night. Halos and glare are common amongst night drivers who have astigmatism. Toric lenses are designed for people with either astigmatism and help correct the degree of astigmatism for a clear vision. To correct your vision properly, Toric lenses should be placed in a pre-decided position on your eye, and it is important that they do not rotate on your eye, but they frequently do. This results in poor vision. Glasses create glare especially in the areas with artificial lighting after dark.

Tips for Drivers with Astigmatism

  1. Get Your Vision Corrected
    Getting your vision corrected is important since most critical decisions made by drivers are based on sight. A lot of drivers aren’t aware of the relationship between good vision and good driving, especially if you drive at night. Figure out what works best for you. Get glasses and Toric lenss and get used to them when you’re not driving.
  2. Wear Anti-Reflector Glasses
    If you wear glasses, switch to anti-reflector glasses when you’re diagnosed with astigmatism since they are much less likely to intensify glare than other corrective lenses. They can also help cut down on poor vision in low light helping you drive at night.
  3. Use Contact Moisturizing Drops
    Having to deal with painful, irritated eyes while driving can not only be annoying, but also dangerous. Toric lenses for astigmatism often result in dry eyes. Driving at night can also result in a glare that reflects off the dry, irregular surface of the cornea. If you wear contact lenses to correct astigmatism, make use of contact moisturizing drops to prevent drying of your Toric lenses.
  4. Lasik Eye Surgery
    Lasik eye surgery is the permanent solution to the common annoyances of dealing with corrective lenses when you have astigmatism. With a quick recovery rate, a Lasik eye surgery can save you money on annual costs of glasses and contact lenses. And more importantly, it will help you with better vision to allow you to drive safely.

If you’re looking for an experienced Ophthalmologist in Fresno, because you’re tired of driving with astigmatism, contact Insight Vision Center today for your Lasik evaluation and get one step closer to saying goodbye to night vision problems and blurry vision for good.

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