## 3 Results  
### Statistical Analysis Results  
The study was conducted in groups that included patients with or without sleep apnea syndrome associated with glaucoma and dry eye syndrome. Statistical data processing was performed with the program SPSS18.0. Prior to ANN modeling, statistical processing of the database was performed. After collecting the data, that was accessible enough to  
Figure 1: Stages of modeling with neural networks. ensure their informational character, the processing was performed using appropriate statistical methods: ANOVA test, Student's \(t\) test, \(\chi^{2}\) test, correlation study, ROC curve tracing the specificity/sensitivity balance as a prognostic factor, and logistic regression (multivariate analysis). The age ranged from 28 to 88 years, registering a significantly lower average level in patients with severe mixed type syndrome, compared to the highest average level recorded in patients with mild obstructive syndrome (53.40 vs. 67.52 years; \(p\) = 0.036). Severe mixed apnea syndrome was found only in males, and 4% of the patients with obstructive syndrome average = 71 were male (\(p\) = 0.046). It was found that 60% of all cases with POAG (primitive open-angle glaucoma) and 61.9% of all cases of NTG (normal pressure glaucoma) associated with mild obstructive sleep apnea syndrome, 45.5% of patients with severe obstructive SAS also had NTG; 40% of patients with mixed severe syndrome associated with NTG and 40% associated with POAG (Table 1 and Figure 2). The lowest mean level of AHI/h was recorded in patients with mild obstructive syndrome, and the highest in patients with severe obstructive syndrome (\(p\) = 0.043). Depending on the type of sleep apnea syndrome (Figure 3), the mean level of disc area in the right eye was lower in mild obstructive SAS and higher in severe mixed SAS (1.98 vs. 2.45; \(p\) = 0.081), an aspect that is not validated in the left eye (\(p\) = 0.858). \begin{table}
\begin{tabular}{c c c c c c c} \hline  & & & & & & & \\ \cline{3-6}  & & **NTG** & **POAG** & **Other Type** & **Dry Eyes** & **Total** \\ \hline \multirow{4}{*}{SAS} & Count & 13 & 9 & 7 & 13 & 42 \\ \cline{2-6}  & \%with SAS & 31.0\% & 21.4\% & 16.7\% & 31.0\% & 100.0\% \\ \cline{2-6}  & \%with type G & 61.9\% & 60.0\% & 77.8\% & 65.0\% & 64.6\% \\ \cline{2-6}  & \multirow{4}{*}{Obstructive medium form} & Count & 1 & 3 & 0 & 3 & 7 \\ \cline{2-6}  & \%with SAS & 14.3\% & 42.9\% & 0.0\% & 42.9\% & 100.0\% \\ \cline{2-6}  & \%with type G & 4.8\% & 20.0\% & 0.0\% & 15.0\% & 10.8\% \\ \cline{2-6}  & \multirow{4}{*}{Obstructive severe form} & Count & 5 & 1 & 2 & 3 & 11 \\ \cline{2-6}  & \%with SAS & 45.5\% & 9.1\% & 18.2\% & 27.3\% & 100.0\% \\ \cline{2-6}  & \%with type G & 23.8\% & 6.7\% & 22.2\% & 15.0\% & 10.8\% \\ \hline \multirow{4}{*}{Mixt severe form} & Count & 2 & 2 & 0 & 1 & 5 \\ \cline{2-6}  & \%with SAS & 40.0\% & 40.0\% & 0.0\% & 20.0\% & 100.0\% \\ \cline{2-6}  & \%with type G & 9.5\% & 13.3\% & 0.0\% & 5.0\% & 7.7\% \\ \cline{2-6}  & \multirow{4}{*}{Total} & Count & 21 & 15 & 9 & 20 & 65 \\ \cline{2-6}  & \%with SAS & 33.3\% & 23.1\% & 13.8\% & 30.8\% & 100.0\% \\ \cline{2-6}  & \%with type G & 100.0\% & 100.0\% & 100.0\% & 100.0\% & 100.0\% \\ \hline \end{tabular}
\end{table} 
Table 1: Percentage distributions of sleep apnea syndrome by type of glaucoma (NTG, POAG, other types of glaucoma) and dry eye syndrome. Figure 2: Percentage of conditions associated with sleep apnea syndrome. Applying the method of successive tests, neural networks with forward propagation of different topologies were built. The performances of the constructed neural models were plotted by the mean squared error (MSE), the correlation coefficient between the experimental data, and the network data (r\({}^{2}\)) and the percentage error Ep (%).