1. Trends in UK contact lens prescribing 1999;Morgan;Optician,1999
2. Contact lens standards;Hough;Contact Lens Ant Eye,1998
3. The Optimec Contact Lens Analyser;Port;Optician,1981
4. ISO/CD 8321-2: Optics and optical instruments—Contact lenses part 2: Specification for hydrogel contact lenses. 1995.
5. Accuracy and variability of three daily disposable soft contact lenses;Long;Contact Lens Ant Eye,1998