Key Takeaways

• Your myopia degree is more than a prescription number; it helps describe how short-sighted your eyes are.
• Higher levels of myopia can be associated with a greater likelihood of certain eye complications later in life.
• Changes in your prescription over time can also provide useful information about how your myopia is progressing.
• Regular eye examinations can help monitor your eye health, even when your vision seems stable.

What Does Your Myopia Degree Actually Tell You?

When you receive a prescription such as -2.00D or -6.00D, it is easy to think of it simply as the strength of glasses or contact lenses you need. But your myopia degree can tell you more.

Myopia, or short-sightedness, occurs when light is focused in front of the retina rather than directly on it. The amount of refractive error is measured in dioptres (D), with a more negative number indicating a higher degree of myopia.

However, your prescription is not a complete picture of your myopia eye health. The structure and length of the eye, whether your prescription is changing, and findings from an eye examination can also be relevant when assessing your long-term eye health.

Does a Higher Myopia Degree Mean Greater Long-Term Risk?

Not everyone with myopia will develop eye complications. However, higher levels of myopia are associated with an increased risk of certain eye conditions. These may include,

• Retinal problems- A longer eyeball, which is often associated with higher myopia, can place stretching forces on the retina.
• Retinal detachment- Myopia, particularly higher myopia, is associated with an increased risk of retinal detachment.
• Myopic macular changes- Changes affecting the central part of the retina may occur in some people with high myopia.
• Glaucoma- Myopia has been associated with an increased risk of glaucoma, although having myopia does not mean that glaucoma will definitely develop.
• Cataract- Some studies have also found an association between higher myopia and certain types of cataract.

The important point is not to assume that a particular prescription guarantees a future problem. Instead, understanding your degree of myopia can help you and your eye care professional decide what needs to be monitored.

Could Your Changing Prescription Be an Early Clue?

Imagine your prescription was -1.50D several years ago and has gradually changed to -4.00D. That change matters.

For children and young adults especially, an increasing prescription can indicate that myopia is progressing. Tracking these changes over time can therefore be useful in understanding your individual eye health. Your eye examination may consider,

• Your current prescription
• Previous prescription records
• Eye length and other structural measurements, where appropriate
• The health of your retina and optic nerve
• Your age and overall eye health
• Any symptoms or changes in vision

This is why looking at a single prescription in isolation may not tell the whole story.

What Should You Do If You Have High Myopia?

Having high myopia does not mean you should expect your vision to deteriorate. It does mean that understanding and monitoring your eye health becomes particularly important.

You can take practical steps such as,

• Keep a record of changes in your spectacle or contact lens prescription.
• Attend eye examinations at intervals recommended by your eye care professional.
• Tell your eye care professional about new symptoms, even if they seem minor.
• Seek prompt assessment if you experience sudden flashes, a sudden increase in floaters, a dark curtain or shadow across your vision, or sudden vision loss.
• If you are a parent, pay attention to rapidly changing prescriptions in children and teenagers.

Can Knowing Your Myopia Degree Change How You Think About Eye Health?

Possibly. Instead of viewing your prescription as simply the number written on a pair of glasses, think of it as one part of your wider eye-health picture.

The more you understand about your myopia, the easier it can be to have informed conversations about monitoring, lifestyle and appropriate care. Most importantly, your degree of myopia should be interpreted alongside the findings of a proper eye examination rather than used to predict your individual future risk.

Frequently Asked Questions

Is -6.00D considered high myopia?

A prescription around -6.00D is generally considered high myopia. However, your eye’s structure and examination findings also matter when assessing overall eye health.

Does myopia always get worse with age?

No. Myopia progression varies between individuals. It commonly changes during childhood and adolescence, but changes can occur at other ages too.

Can myopia cause blindness?

Myopia itself does not mean that someone will become blind. However, higher myopia is associated with a greater risk of certain eye conditions that can affect vision, which is why ongoing monitoring can be important.

Should adults with myopia have regular eye examinations?

Yes. The appropriate frequency depends on factors such as your degree of myopia, age, symptoms and examination findings. Your eye care professional can advise you on an appropriate schedule.

When should I seek urgent eye assessment?

Sudden flashes of light, a sudden increase in floaters, a curtain-like shadow over your vision or sudden loss of vision should be assessed promptly.

Take the Next Step Towards Understanding Your Myopia Eye Health

Your myopia degree is one piece of information, but understanding how it fits into your overall eye health can help you make more informed decisions about ongoing monitoring.

If you are concerned about your myopia or notice changes in your prescription or vision, consider discussing your concerns with our team of doctors at Myopia Specialist Centre in Singapore. A consultation can help assess your current eye health and determine what monitoring may be appropriate for you.

Consider booking a consultation with Myopia Specialist Centre to understand your myopia and long-term eye health better.