Chávez Mestanza, H. R., and A. E. Villegas Terán. “Comparative Study of Multifocal and Monovision Contact Lenses in Presbyopic Patients at the Valle De Los Chillos Optometric Center”. Anatomía Digital, Vol. 8, no. 4, Dec. 2025, pp. 95-108, doi:10.33262/anatomiadigital.v8i4.3562.