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What Are the Risks of High Myopia?

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A young woman wearing glasses due to myopia

Key Takeaways

  • High myopia is a strong form of nearsightedness where light lands in front of the retina.
  • Eye doctors measure it in dioptres, and high myopia often sits around -5.00 to -6.00.
  • Family history and long hours of close-up focus can play a role.
  • High myopia can raise the chance of glaucoma, cataracts, and retinal detachment.
  • Myopia control with specialty lenses and regular checks can help slow changes.

You might notice your child holding a tablet inches from their nose or sitting close to the TV. Those small habits can hint at nearsightedness. Our team at Total Focus Optometry can check what’s going on and explain what high myopia means for growing eyes.

High myopia is a severe form of nearsightedness where the eye grows longer than normal, so light focuses in front of the retina instead of directly on it, leaving distant objects blurry.

What High Myopia Means for Your Child

As nearsightedness worsens, the eye keeps lengthening, and that shift changes how your child sees the world.

The shape of the eye plays a big part. A longer eyeball bends light in a way that makes faraway signs, whiteboards, and faces look fuzzy. Up-close items typically stay clear, which is why kids often manage without saying much.

How an Eye Doctor Diagnoses High Myopia

A full eye exam looks at how your child’s eyes focus and how healthy they are inside. An eye doctor in South Edmonton can measure the exact prescription strength and check the shape of the eye.

How Prescriptions Are Measured

Prescriptions come in a unit called dioptres. It sounds technical, but the idea is simple. The number tells you how much correction the eye needs.

A negative number means your child is nearsighted. The bigger the negative number, the blurrier distant objects appear. High myopia usually falls around -5.00 to -6.00 dioptres.

Signs to Watch For

Kids don’t always know their vision could be sharper, so small clues matter. Watch for these signs:

  • Blurry distance vision and frequent squinting to see far away.
  • Headaches and eye strain, especially after school or screen time.
  • Sitting close to screens or holding books very near the face.

High myopia often shows up before age 13, so early exams help our team catch changes while the eyes are still growing.

What Contributes to High Myopia

Genetics play a large role. If one or both parents are nearsighted, your child has a higher chance of it too.

Daily habits add to the picture. Long stretches of close focus, like reading, gaming, or scrolling a phone, keep the eyes locked at one short distance for hours.

Less time outdoors can also matter. Natural daylight and looking at faraway objects give the eyes a break from constant close work, and that break can help slow how fast myopia grows.

Health Risks Tied to High Myopia

High myopia isn’t only about thicker glasses. Because the eye is longer, the tissues inside stretch thin, which can raise the chance of certain conditions later in life.

Glaucoma

Glaucoma happens when pressure inside the eye stresses the optic nerve. Over time, that pressure can damage how signals travel to the brain. High myopia increases the risk, so regular pressure checks matter.

Cataracts

A cataract is a cloudy lens that makes vision look hazy or dim. People with high myopia can develop cataracts earlier and may be more likely to need surgery to replace the cloudy lens with a clear one.

Retinal Detachment

The retina lines the back wall of the eye and sends pictures to the brain. In a longer eye, the retina is stretched thin and can peel away from that back wall. This can affect long-term vision, so quick attention helps protect it.

How Myopia Control Helps Your Child

Here’s the hopeful part. A child’s eyes are still flexible and adaptable, giving our team a window to slow how fast myopia progresses.

Myopia control uses tools built for young eyes. Options can include:

  • Specialty contact lenses worn during the day or overnight.
  • Glasses lenses shaped to slow changes in the eye.
  • Regular eye checks to track shifts in the prescription.

Frequent visits help your eye doctor adjust the plan as your child grows, so small changes don’t turn into big surprises.

Prioritize Their Vision

At Total Focus Optometry, our team takes time to get to know your family and tailor care to your child’s needs. Book an eye exam today and give your child clear vision and healthy eyes for the years ahead.

Written by Dr. Craig M

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