I would like to know whether I could start considering a laser vision correction procedure if my recent examination results have been as follows:
Feb 2022: -5.25 and -5.5
Aug 2021: -5.0 and -5.5
Jul 2020: -5.0 and -5.25
Apr 2019: -4.75 and -5.0
Dec 2015: -4.25 and -4.5
May 2014: -4.25 and -4.5

Laser vision correction can be performed only when the refractive error is stable, which means it has to remain stable, without progressing, for at least a year before the surgery. We are talking about a range of about 0.5-1D. The examination results you have presented demonstrate that the defect does not change (0.25D is considered the limit of error).
A refractive error of -5.25 and -5.5 fits within the operating range of a laser and hence qualifies for correction. However, to finally assess the possibility of performing the procedure the patient has to undergo a preliminary qualifying examination, during which a doctor checks other eye parameters, such as corneal thickness.