[Procedure for keratoconus detection according to the Rabinowitz-Rasheed method--personal experience].

PURPOSE: The purpose of this study was to investigate sensitivity of KISA% index to compare with Klyce-Maeda and Smolek-Klyce methods in detection of early or suspected keratoconus by using AutoTopographer TMS-3 (Tomey).

MATERIAL AND

METHODS

At the First Department and Clinique of Ophthalmology, Silesian Medical School in Katowice, 69 eyes underwent ophthalmological examinations in patients, who did not wear contact lenses at least for 6 weeks before examination. The procedure was performed with the TMS-3 AutoTopographer (Tomey). During the study we investigated index definitions included in Keratoconus Screening Program.

RESULTS

The examination showed the false negative results in 29% patients with early or suspected keratoconus. Using KISA% index we detected false negative results in 5.8% patients with early or suspected keratoconus.

CONCLUSION

To sum up, we can say that the KISA% index is highly sensitive and specific for diagnosing keratoconus, more useful than Klyce-Maeda and Smolek-Klyce methods. This method can be used by users of all types of videokeratoscopes.