Myopia Can Start in Young Adulthood — Not Just Childhood

Myopia (short-sightedness) can begin or continue progressing in young adults, particularly in their 20s. It is commonly linked to prolonged near work and reduced exposure to high levels of outdoor light. The most important step is confirming whether myopia is stable, as ongoing progression can increase long-term eye health risks. In Sydney, assessment focuses on confirming stability before considering laser vision correction.

Introduction

Most people assume their vision stabilises after school.

In reality, we are seeing an increasing number of young adults in Sydney whose myopia is starting or worsening in their 20s, often during university, early careers, or periods of intensive reading/ screen use.

If you’ve noticed your prescription changing, it may be worth considering a structured eye test or assessing whether your vision is stable enough for long-term vision correction solutions.

Research published in Clinical & Experimental Ophthalmology and highlighted by the American Academy of Ophthalmology confirms that myopia can develop and progress well into early adulthood.

Understanding Whether Your Myopia Is Stable

For many patients in Sydney, the key question is not which treatment to choose, but whether myopia is stable.

Dr Shanel Sharma focuses on assessing and managing myopia progression — particularly in children and increasingly in young adults whose prescriptions continue to change.

Once stability is confirmed, Dr Daya Sharma, a refractive and cataract surgeon, advises on options to reduce dependence on glasses or contact lenses, including laser and lens-based procedures if that is of interest to you.

WHAT IS MYOPIA?

Myopia (short-sightedness) occurs when the eye grows too long, causing light to focus in front of the retina.

This leads to:

• Blurred distance vision
• Increasing reliance on glasses or contact lenses
• Difficulty with night driving
• Eye strain and headaches

The key issue is not just clarity — it’s that progressive myopia reflects structural change in the eye (axial elongation).

Can Myopia Start in Your 20s?

Short answer: yes — and it’s more common than most people realise.

Studies show:

• Myopia can develop for the first time in young adults
• It can continue progressing after adolescence
• Progression may persist into the mid-20s and beyond

The idea that your eyes “stop changing after school” is simply incorrect.

Why Is Myopia Increasing in Young Adults?

The increase in myopia among young adults is strongly linked to modern visual demands.

Key factors include:

• Prolonged near work (study, screens)
• High visual demand
• Reduced time outdoors

The Critical Factor: Light Exposure (What the Literature Shows)

The strongest and most consistent finding in the literature is:

Exposure to high levels of outdoor light is protective against the development of myopia

• Increased time outdoors reduces the risk of myopia onset
• Public health interventions increasing outdoor time can reverse worsening vision trends
• Light intensity (lux), rather than simply reducing near work, appears to be the key protective factor

Important Clinical Insight: Childhood Data vs Adult Reality

Most high-quality evidence on myopia prevention comes from childhood studies.

However: In clinical practice, we extrapolate these findings to adults.

Careers Where Myopia Progression Is More Likely

Certain careers are commonly associated with myopia — but not because of the job itself.

It is suspected the lifestyle pathway to that career.

These professions typically involve:

• Years of intensive education
• Prolonged indoor study
• Reduced exposure to high-lux outdoor light

Why Myopia Progression Matters

Myopia is not just about needing stronger glasses.

Higher levels are associated with:

• Retinal detachment
• Myopic macular degeneration
• Glaucoma
• Earlier cataract formation

This is why stabilisation matters.

Signs Your Myopia May Still Be Progressing

• Prescription changes every 1–2 years
• Worsening distance vision
• Increased dependence on glasses
• Difficulty with night driving

If this is happening, your myopia is likely not stable

Not sure if your myopia is stable?

If your prescription has been changing, the first step is a structured assessment.

Book an eye assessment with Dr Shanel Sharma at Eye and Laser Surgeons to determine whether your myopia is stable or still progressing.

The First Goal: Stabilising Myopia

Before considering vision correction:

👉 Is your myopia stable?

If progression continues:

• Axial length increases
• Long-term risk rises
• Structural stress increases

Conditions such as Keratoconus may also need to be excluded.

Managing Myopia Before Surgery

Options include:

• Glasses (especially earlier)
• Contact lenses
• Monitoring progression

Many patients simply need observation and timing