1. https://www.sclerallens.org/sites/default/files/files/SLS_Nomenclature_LtrHead06_26_2013.pdf. (Access 13 march 2017).
2. Modern scleral contact lenses: a review;van der Worp;Cont. Lens Anterior Eye,2014
3. A Guide to Scleral Lens Fitting, Version 2.0 [monograph online];van der Worp,2015
4. Putting scleral lenses front and center;Barnett;Rev. Cornea Cont. Lens,2014
5. The developing role of scleral lenses in today’s society;Barnett;Cont. Lens Spectr.,2013