It is possible to improve near vision (presbyopia or myopia) through specific eye training exercises.

noli's read

The idea that eye exercises can correct refractive errors such as myopia or presbyopia has long been a subject of debate. Current science, notably through systematic reviews published in the Cochrane Library, indicates that the evidence supporting the efficacy of so-called "eye gymnastics" methods to alter the structure of the eye or permanently correct vision is insufficient. These conditions are primarily linked to the shape of the eyeball or the loss of lens elasticity, anatomical factors over which extraocular muscles have little influence. Some exercises may help reduce visual fatigue associated with screen work, but this does not constitute an optical correction. It is important to distinguish visual comfort, which can be improved by relaxation, from the correction of a proven visual impairment. Assertions suggesting a real alternative to glasses for these pathologies therefore lack solid clinical evidence.

the sources

No named source held this one up — that absence is part of the verdict.