Effect of large diameter and plasma coating on the initial adaptation of gas permeable contact lens fitting for neophytes

Purpose To determine whether the adaption of neophytes to rigid gas permeable lenses (GPs) could be accelerated by changing their diameter or surface lubricity. Methods This was a 2 part prospective double-masked randomised wear study. An GP lens (Roflufocon D material, 9.6 mm diameter) with and without Hydrapeg plasma coating worn 119 (21.1 ± 3.5 years; 77% female) on separate occasions. A further 114 (average age 20.1 1.0 72% wore uncoated in one randomly allocated eye 10.1 (n = 51) 10.6 63) other basecurve compensation keeping fit equivalent. Lens corneal staining assessed after 20 min, comfort bulbar redness were at time application 5, 10, 15, min. Participants also reported ease removal 5 point scale. Results Plasma coated increasing did not improve (p 0.673, p > 0.05) 0.805, during min adaptation period neophytes. In both cohorts, improved reduced < 0.001). Corneal staining, insertion differ 0.05). Conclusion Changing lubricity is beneficial healthy