Purpose: To evaluate the performance of EyeSys Topographic system of contact lens fitting software (version 3.10) in followed-up patients of the contact lens department of the Hospital do Servidor Público Estadual, some of them with keratoconus diagnosis. Methods: The 29 patients, 9 of them with a keratoconus diagnosis, had their contact lens fitted in this specific sector of the above mentioned hospital, based on simulated keratometry and the best fluoresceinographic pattern. Afterwards, the base curve pattern and the lens power of those lenses were compared with the same suggested patterns of the computerized topography fitting program. Results: No statistically significant differences were found regarding the base curve (p=0.158) and lens power of fitted lenses (p=0.013) both in normal and keratoconus patients (p=0.463 for base curve and p=0.842 for lens power). However, in the latter group, we found greater base curve and lens power values than in the normal patient group. Conclusion: The computerized fitting program EyeSys (3.10 version) of contact lenses can be used as an auxiliary method for rigid gas permeable contact lenses, both in normal and keratoconus patients, spending less time and offering a more comfortable lens fitting. However clinical experience is the best choice.
Contact lenses; Corneal topography; Keratoconus; Software
