## 3 Results
Marker color and style corresponds to air-puff stimuli type: red circles for Type 1 air-puff, green squares for Type 2, and blue diamonds for type 3. The correlation between MAD and IOP was particularly strong and statistically significant (Figure 6A and Table 3), being highest for Type 1 air-puff (\(\rm{r_{s}}=-0.972\)) and slightly lower for Type 2 and Type 3 (\(\rm{r_{s}}=0.876\) and \(\rm{r_{s}}=-0.850\), respectively). The eye retraction (MER) was significantly lower (Figure 6B) than corneal displacement (MAD), and MER correlated weakly with IOP. Furthermore, reducing the puff stimulus caused a more pronounced decrease in MER-IOP correlation than in the MAD-IOP correlation (Table 3). CCT measured before or during deformation did not show any statistically significant relation to IOP (Table 3). A high correlation emerged between CRT and IOP (Figure 6C and Table 3), with a slight reduction in correlation for Type 2 and Type 3 air-puffs (\(\rm{r_{s}}=-0.880\) and \(\rm{r_{s}}=0.748\), respectively) compared to Type 1 (\(\rm{r_{s}}=0.963\)). Notably, CRT depended on IOP in a nonlinear manner, while MAD, MER, HA, and S varied linearly with IOP \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline  & \multicolumn{6}{c}{**Air–Puff Type**} \\ \cline{2-7}
**Parameter** & \multicolumn{2}{c}{**Type 1**} & \multicolumn{2}{c}{**Type 2**} & \multicolumn{2}{c}{**Type 3**} \\ \cline{2-7}  & \(\rm{r_{s}}\) & \(\mathbf{p}\) & \(\rm{r_{s}}\) & \(\mathbf{p}\) & \(\rm{r_{s}}\) & \(\mathbf{p}\) \\ \hline MAD & \(-0.972\) & \(<\)0.001 & \(-0.876\) & \(<\)0.001 & \(-0.854\) & \(<\)0.001 \\ MER & \(-0.455\) & \(0.002\) & \(-0.392\) & \(0.009\) & \(-0.105\) & \(0.498\) \\ CCT\({}_{\rm{Def}}\) & \(-0.208\) & \(0.170\) & \(-0.171\) & \(0.266\) & \(-0.227\) & \(0.139\) \\ CCT\({}_{\rm{max}}\) & \(-0.150\) & \(0.330\) & \(-0.052\) & \(0.738\) & \(-0.177\) & \(0.250\) \\ CRT & \(0.963\) & \(<\)0.001 & \(0.880\) & \(<\)0.001 & \(0.748\) & \(<\)0.001 \\ CV\({}_{\rm{L}}\) & \(-0.980\) & \(<\)0.001 & \(-\) & \(-\) & \(-\) & \(-\) \\ CV\({}_{\rm{R}}\) & \(-0.906\) & \(<\)0.001 & \(-\) & \(-\) & \(-\) & \(-\) \\ \(\Delta_{\rm{U}}\) & \(-0.962\) & \(<\)0.001 & \(-\) & \(-\) & \(-\) & \(-\) \\ HA & \(-0.792\) & \(<\)0.001 & \(-0.670\) & \(<\)0.001 & \(-0.740\) & \(<\)0.001 \\ S & \(0.967\) & \(<\)0.001 & \(0.842\) & \(<\)0.001 & \(0.855\) & \(<\)0.001 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: [PERSON]’s correlation coefficients (\(\rm{r_{s}}\)) for selected parameters versus IOP. Figure 6: Impact of the IOP and the air-puff type on: (**A**) the maximum apex displacement (MAD), (**B**) the maximum eye retraction (MER), (**C**) the corneal response time (CRT), (**D**) hysteresis area (HA), (**E**) hysteresis slope (S). Box plot color corresponds to air-puff stimuli type: red—Type 1, green—Type 2, and blue—Type 3. Circles indicate outliers, and asterisks depict extreme outliers. (**F**) Representative example of the hysteresis loops for 15 mmHg (blue) and 30 mmHg (green) for Type 1 air-puff. (Figure 6A-E). We found a strong negative correlation between HA and IOP and a strong positive correlation between S and IOP for all stimulus strengths (Figure 6D,E and Table 3). For Type 1 air-puff, HA reached zero at the highest IOP, indicating a purely elastic response (green curve in Figure 6F). We also evaluated the corneal apex velocity during mechanical stimulation to broaden our understanding of corneal dynamics for Type 1 air-puff. Figure 7A shows representative corneal velocity profiles from one eye at several IOP levels (10-30 mmHg in 5 mmHg increments). Positive velocity values correspond to the loading phase of corneal deformation, and velocity reaches zero at the point of maximum displacement (MAD). During the recovery phase, velocity values are negative. The sign of velocity value indicates only the direction of the cornea movement. We analyzed the absolute velocity peaks and the time intervals between these peaks (CVL, CVR, and \(\Delta\)tv).