1. Contact Lens Practice, 2nd ed.;Brennan,2010
2. Developing hydrophilic lenses for continuous wear.;De Carle;Aust J Optom,1972
3. Oxygen permeability and physical fitting considerations in hydrophilic contact lens wear.;De Carle;Contacto,1975
4. Extended-wear contact lenses for myopic correction.;Stark;Arch Ophthalmol,1981
5. Disposable hydrogel contact lenses for extended wear.;Donshik;CLAO J,1988