Improving Interobserver Variation in Corneal Sublayer Pachymetry Using ConfoScan4 With Z Ring

Abstract

The interobserver variation in corneal sublayer pachymetry could be improved by having the observers going through some corneal frames together rather than just following the written criteria. The use of CS4 (z ring) to measure CT, FST, and Epi+BT is suitable for monitoring corneal changes clinically.