Problems arising from eyeglasses prescriptions can be due either to a fautive prescription (over correction of hyperopia, of astigmatism, ...), either to a fautive writing of the prescription (inversion of axis or sign of a cylinder, inversion of the value RE/LE, ...) or to a poor work by the optician (decentered glasses ...)
Lemagne, J.-M. (1997). Les corrections optiques contestées. Bulletin de la Société belge d’ophtalmologie, 264, 133-134. https://hdl.handle.net/2078.5/114138 (Original work published 1997)