Figure 3

Above) Correlation between the relative search volume (RSV) for “corneal transplantation” and the number of perforating keratoplasty (PK) over time in Germany. X-Axis: Time (Year/Quarter), Y-Axis (RSV, absolute number of PK/quarter). Below) Correlation between the relative search volume (RSV) for “DMEK” and number of DMEK surgeries over time in Germany. X-Axis: Time (Year/Quarter), Y-axis: (RSV, absolute number of DMEK/quarter). Star shows statistically significant correlation.