Defocus curve metrics

Age decreases defocus curve metrics in humans (p < 0.001).

“DC metrics showed significant age-related changes, with reduced AUC and less defocus cut-off values in older groups (p < 0.001).”

Humansphakic adultsn = 77

Subjective Accommodative Function and Defocus Curve Metrics in Phakic Adults Aged 45-65 Years

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·4 Aug 2026