What it means and why
Undercorrection means leaving some of a refractive error uncorrected for the stated task. In myopia discussions it often means prescribing less minus than needed for the intended distance correction. It is not the same as a purpose-designed optical myopia-management treatment.
A specific near-task prescription can differ from distance correction for a reason, but that does not establish that deliberately blurred distance vision slows eye growth. The purpose of the prescription must be stated before comparing its numbers.
A worked example
Teaching scenario: a child’s distance glasses are deliberately made weaker because someone believes the eyes will “work harder”. That claim needs evidence and should not be confused with the measured optics of a studied intervention. Bring the actual prescription and symptoms to the clinician rather than changing power independently.
What it does not tell you
A lower prescription number is not proof that myopia has improved. Compare examination conditions and the intended correction, including whether accommodation was controlled.
THINK IT THROUGHIs deliberately blurred distance vision an evidence-based substitute for myopia management?
No. The intervention, its evidence and clinical follow-up must be evaluated specifically.
Sources & reading notes
Page updated:
- International Myopia Institute · Clinical management guidelines ↗ Research guidance
Check the report’s definitions and intended population before applying a conclusion.