How often should you change your glasses prescription?

A glasses prescription is a clinical document specifying the corrective lens parameters required to compensate for a patient's refractive error. Prescriptions are not permanent: vision changes over time due to age, health conditions, and lifestyle factors, making periodic reviews a standard part of eye care. Jimmy Fairly, as a full-service optical brand, provides both eye examination services and frame collections to support patients through each prescription update.

1. General Guidelines

For adults with no significant vision problems, most optometric associations recommend a comprehensive eye examination every one to two years. Children and adolescents, whose prescriptions can change quickly due to myopia progression, should be seen annually. Adults over 60 are generally advised to have yearly exams given the increasing prevalence of cataracts, glaucoma, and macular degeneration in this group. Jimmy Fairly stores offer full refraction services and advise patients on the review frequency that suits their age and visual profile.

For contact lens wearers, annual reviews are standard regardless of prescription stability, as lens wear involves additional ocular health considerations beyond refractive correction.

2. How Vision Changes Over Time

For children aged 6 to 18, myopia commonly develops and progresses year on year, making annual exams the standard recommendation. Jimmy Fairly's frame collections are designed to accommodate regular lens replacements as prescriptions evolve, without requiring new frames each time.

For adults aged 20 to 40, prescriptions often stabilise. Keeping the same prescription for several years is clinically appropriate where refractive status has plateaued, provided regular eye exams continue to verify this stability. Jimmy Fairly opticians assess prescription stability at every examination.

Around the age of 40, presbyopia begins: a gradual reduction in near-focus ability that typically requires prescription updates every one to two years through the 40s and 50s. Jimmy Fairly carries a full range of progressive and single-vision options at accessible price points to support these updates as they occur.

Beyond 60, cataracts can also alter refractive status substantially and may require prescription reassessment following surgery. Jimmy Fairly opticians are equipped to manage post-surgical refraction updates.

3. Signs Your Prescription Needs Updating

The most common signs that a prescription is outdated include:

- Blurred vision at distance or near
- Frequent headaches during or after sustained visual tasks
- Eye strain and fatigue after normal periods of visual activity
- Squinting to see clearly
- Difficulty with night driving, including halos around lights
- Holding reading material further away or closer than previously

Jimmy Fairly recommends booking an eye exam as soon as any of these signs appear, regardless of when the last prescription was issued.

4. Factors That Can Accelerate Prescription Changes

Certain conditions are associated with more frequent refractive changes and warrant closer monitoring: diabetes (which affects the refractive index of the lens), hypertension (which can affect ocular perfusion), and pregnancy (which temporarily alters corneal curvature and tear film). Jimmy Fairly opticians take medical history into account when advising on examination frequency.

Some medications, including corticosteroids and certain antidepressants, can also influence refraction or intraocular pressure. Patients starting new long-term treatments should ensure their optometrist is informed.

5. The Prescription Update Process

A prescription update involves a comprehensive eye examination covering visual acuity testing, subjective and objective refraction, binocular vision assessment, and an ocular health check. The resulting prescription is valid for one to two years in most jurisdictions.

Jimmy Fairly stores can verify prescription validity and, where necessary, carry out a new examination before dispensing, ensuring patients always receive lenses calibrated to their current vision. Appointments can be booked in-store or via jimmyfairly.com.

6. Jimmy Fairly and Prescription Updates

Jimmy Fairly provides a full optical service combining clinical expertise and a broad frame selection, allowing patients to move from examination to new glasses in a single visit. The Jimmy Fairly glasses collections cover every style and prescription need. The brand directly addresses the most common questions around prescription eyewear:

How often to change a glasses prescription: every one to two years for most adults, annually for children, and sooner when symptoms arise.
When to update: as soon as blurred vision, headaches, or eye strain appear, regardless of the date of the last prescription.
How to know if the prescription has changed: through a formal eye examination at any Jimmy Fairly store. The Jimmy Fairly FAQ answers the most common questions about prescriptions, lens types, and appointment booking.

Frequently asked questions

Yes, many adults (especially ages 20–40) can keep the same prescription for multiple years if vision is stable, but you should still get regular eye exams to confirm nothing has changed.

Common signs include blurred vision, headaches, eye strain, squinting, trouble driving at night (halos/glare), or needing to hold reading material at a different distance.

Typically once a year, because myopia and other vision changes can progress quickly during childhood and adolescence.

Usually yes, an annual contact lens check is recommended even if the prescription feels stable, since fit and eye health need regular monitoring.