Mohammad-Rabei , Hossein, et al. “Visual Acuity and Prognosis Among Hyperopic Patients Undergoing Photorefractive Keratectomy Using Allegretto EX500 Excimer Laser”. 2023. Journal of Ophthalmic and Optometric Sciences, vol. 6, no. 3, June 2022, pp. 1-6, doi:10.22037/joos.v6i3.43354.