Fig. 9
From: Sirius Scheimpflug–Placido versus ultrasound pachymetry for central corneal thickness: meta-analysis

Funnel plot of subgroup (Caucasian or Asian)
From: Sirius Scheimpflug–Placido versus ultrasound pachymetry for central corneal thickness: meta-analysis
Funnel plot of subgroup (Caucasian or Asian)