1. Patients with keratoconus and irregular astigmatism;Szczotka-Flyn,2006
2. Contact lenses for keratoconus;Watts,2017
3. Modern scleral contact lenses: a review;van der Worp;Cont Lens Anterior Eye,2014
4. Contact lens applications in corneal disease;Robertson,2011
5. Scleral lenses, a literature review;Schornack;Eye Contact Lens,2015