Progressive, Progressive Addition Lenses (PAL), or Multifocal lenses have distance, intermediate, and reading prescriptions seamlessly integrated into your lens with no visible lines. There is a gradual change in power from the distance to the reading area. For first time wearers, these lenses can take up to three weeks to adapt to.
Plastic lenses are recommended for prescription under 2.00D sphere;
Thin lenses for prescription ranging 2.25-4.00D
Thinner lenses for prescriptions greater than 4.00D