There's a familiar pattern many of us have seen: A presbyopic patient returns frustrated, convinced their new glasses "aren't correct." We pull up the refraction, second guess ourselves, and start considering a remake. But before we go down that road, it's worth asking a different question: "Is this really a prescription problem, or is it the ocular surface talking?"
Listen Before You Look
Certain chief complaints should immediately raise our suspicion for ocular surface disease as the culprit. Train your ears to catch these clues:
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"My new glasses aren't working anymore…They worked fine at first"
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"My vision fluctuates throughout the day"
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"I feel like I need stronger reading power"
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"I have to blink or look away to see clearly"
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"My [multifocal] contacts work in the morning, but get worse through the day" or “My vision is clear at first, and then gets blurry after prolonged reading.”
These complaints aren't always prescription failures. They are often dry eye symptoms wearing a refractive disguise. An unstable tear film creates a refractive surface that shifts throughout the day, and no progressive lens design in the world can compensate for that.
When to Hold the Prescription
Here's a clinical principle I follow firmly: If you're seeing anything beyond trace inferior corneal staining, do not finalize the prescription. This matters most with progressive and multifocal lenses, where the margin for error is already thin. Staining tells you the corneal surface is compromised, the refraction may shift once the surface heals, and the prescription you're writing today may not be the one the patient actually needs.
Patients occasionally feel frustrated when we ask them to wait, but most appreciate the reasoning when it's explained clearly. I often say: "I want you to love your vision in your new glasses, and I can't confidently promise that until we improve the health of the front surface of your eyes first." They recognize that you're protecting both their vision and their investment and that's the kind of care that builds long-term trust.
Train Your Optical Team
Many complaints about glasses start at the optical team, rather than the doctor. That makes staff education critical. Equip your team to recognize red-flag complaints that warrant a doctor recheck before discussing a remake. Fluctuating vision, recent onset discomfort, or a patient reporting that the glasses were initially successful should all trigger a closer look at the ocular surface.
Not every complaint requires a remake or a refraction. Sometimes it requires a slit lamp. A simple triage protocol protects patient outcomes, optical revenue, and trust in the prescribing process.
Have a Clinical Game Plan
Recently, a patient returned within a month of a significant prescription change reporting poor vision and difficulty adapting. The refraction confirmed the original power, but the ocular surface looked notably different than at the initial visit. Before ordering a remake, we prescribed preservative-free artificial tears BID for 1 week and identified a prescription change we'd make if there was no improvement. At follow up, symptoms resolved and no remake was needed.
Make ocular surface optimization Plan A. Remake or prescription change is Plan B because sometimes, the best prescription you can write is the one you hold off on until the ocular surface is ready.OM
