Background/Objectives: Human papillomavirus (HPV) is a causative agent of infections and cancers of the reproductive and digestive tract, and vaccination is the most effective prevention method. This research aimed to assess the impact of health education on vaccination coverage and knowledge of the school population related to HPV infection and vaccination. Methods: This non-randomized clinical trial included 170 participants out of the 221 students in the generation of 2022/2023, who were divided into a group of Subjects and Controls and who self-assessed their knowledge and tested knowledge at four and two time points, respectively. Results: The study examined whether there is a difference in the share of vaccinated students of the entire generation compared to the previous generation (62% vs. 47%). The self-assessment and assessment of one’s knowledge in the group of subjects was significantly lower before education than during other time points during the research. At “moment zero”, there was no significant difference in the knowledge assessment between the groups. However, after 8 weeks, the knowledge assessment was significantly higher in the Subject group. Conclusions: The results suggest a positive impact of health education, which may contribute to raising awareness about the importance of prevention and vaccination against HPV.

Background/Objectives: The Human Papillomavirus (HPV) is one of the most common causes of STIs, posing a significant public health problem. Today, the transmission of HPV can be very effectively prevented, making it important to vaccinate the target population at a young age. The aim of this study was to examine the attitudes and beliefs of parents regarding the HPV vaccine and the HPV vaccination of their child. Methods: This cross-sectional study was conducted in Osijek, Croatia, from June 2021 to September 2022 via a self-administered questionnaire and included 215 respondents. Results: The results showed that respondents who would vaccinate their child were significantly more likely to be those who work in the healthcare field, who had heard of the term HPV, who had sought information about the HPV vaccine on their own, and who had received information about vaccination from school doctors. The attitude towards vaccination was more negative among respondents who did not intend to vaccinate their child. In predicting the decision not to vaccinate one’s child against HPV, bivariate logistic regression revealed that the probability of non-vaccination increases with working outside the field of healthcare (OR = 4.61) and a negative attitude towards vaccination (OR = 1.46), while the probability of non-vaccination decreases if information was received from a school doctor (OR = 0.46). Furthermore, multivariate logistic regression showed that there is a significant model in predicting non-vaccination against HPV, consisting of two predictors: working outside the healthcare field (OR = 8.15) and a negative attitude towards vaccination (OR = 1.49). Conclusions: Given that parents are responsible for making the decision about HPV vaccination, it is necessary to invest additional efforts in educating them about the importance of preventing HPV infections and the benefits of HPV vaccination itself.

Background: Glaucoma is a group of eye conditions that damage the optic nerve, and it can be interconnected with psychoneurotic disorders due to the psychological and emotional stress that comes with such a chronic condition. The aim of this study was to examine the characteristics of the occurrence of anxiety, depression and open-angle glaucoma (OAG) in glaucoma patients from December 2023 to December 2024. Methods: This cross-sectional study was conducted on 200 patients with three different stages of OAG. Multiple questionnaires were used to determine the influence of different OAG stages on the severity of anxiety and depression. Results: While predicting the anxiety expression, in a multivariate logistic regression (stepwise method), there was a significant model in predicting the expression of anxiety: female gender (Odds ratio (OR) = 3.03), age of 66 and over (OR = 3.4) and the feeling of being under stress (OR = 7.07). In the prediction of a higher severity of depression, predictors are age 66 and older (OR = 2.03) and feeling stressed (OR = 9.47). Conclusions: While glaucoma and psychoneurotic disorders affect different systems in the body, the psychological toll of living with glaucoma can lead to exacerbation of glaucoma.

Background: Phacoemulsification (PE) is a gold standard method of cataract surgery. PE causes structural changes in the macula of the eye. The aim was to determine the amount of ultrasound (US) energy applied during PE, the change in thickness of the intraretinal layers, and the correlation between the applied US energy and the change in the thickness of the intraretinal layers in five predefined areas of the macula. Methods: This prospective study included 102 eyes of 79 consecutive subjects without other eye or systemic diseases that can affect the eyes submitted to PE. The macular layer thickness was measured on the day of PE (day 0) and at 7, 30, and 90 days after PE using an OCT device. Recorded images were based on posterior pole asymmetry analysis. Results: Statistically significant correlations of applied US energy and the change in thickness of retinal layers were found 90 days after PE in 6 out of 10 macular layers in different macula regions. Conclusions: The results suggest interconnections between US energy spent during PE and the change in the thickness of individual retinal layers of the macula, in different ranges, unevenly, in five defined areas of the macula.

Background: Depression and anxiety are highly prevalent among medical students and may adversely affect academic functioning and professional development. Early identification of these symptoms and their associated factors is therefore essential. Religiosity has been suggested as a potential modifier of mental health outcomes, although existing evidence remains inconsistent. This study aimed to assess symptoms of depression and anxiety, levels of religiosity, and their associations among medical students. Methods: This cross-sectional study was conducted among medical students at the University of Osijek, Croatia, from 29 September to 5 October 2025. Anxiety symptoms were assessed using the Generalized Anxiety Disorder-7 (GAD-7) scale, depressive symptoms using the Patient Health Questionnaire-9 (PHQ-9), and religiosity using the Duke University Religion Index (DUREL). Results: A total of 260 students (197 females, 63 males) completed the survey. At least mild depressive and anxiety symptoms were reported by 54.2% and 58.1%, respectively; 9.2% had moderately severe or severe depression, and 25% reported moderate to severe anxiety. Suicidal or self-harm ideation in the past two weeks occurred in 12.8%. Female students had higher median depression (p = 0.01) and anxiety scores (p = 0.005) than male students; however, these differences did not remain statistically significant after Bonferroni correction. Religiosity was not associated with PHQ-9 or GAD-7 scores after correction; however, categorical analyses indicated that students with moderate to high religiosity more frequently reported moderate to severe depressive symptoms (p = 0.037). Conclusions: The high prevalence of depression, anxiety, and suicidal ideation underscores the need for continuous mental health screening, early identification of risk factors, and implementation of preventive programs among the student population, particularly medical students as future healthcare professionals.

Background: Retinal microvascular assessment has emerged as a promising non-invasive approach for evaluating vascular health. Recent advances in retinal imaging technologies have enabled detailed characterization of retinal vascular structure and function, raising interest in their potential role as biomarkers of exercise-related vascular adaptation. This systematic review with narrative synthesis aimed to summarize current evidence regarding the relationship between exercise, physical fitness, and retinal microvascular biomarkers. Methods: A systematic literature search was conducted in PubMed, Scopus, and Web of Science for studies published from January 2021 to June 2026, followed by a supplementary update search to identify eligible publications available through 31 July 2026. Search terms combined retinal microvascular assessment techniques with terms related to exercise, physical activity, physical fitness, and exercise training. Following screening and eligibility assessment, 42 publications were included in the final qualitative synthesis, comprising 20 publications identified through the initial search and 22 additional publications identified through the supplementary update search. Several publications represented complementary analyses of the same or overlapping study cohorts and were therefore not considered independent replications. Results: The included studies comprised observational studies and exercise intervention trials involving healthy individuals and clinical populations. Retinal biomarkers assessed included vessel diameters, arteriovenous ratio (AVR), vessel density, perfusion density, foveal avascular zone (FAZ), retinal oxygen extraction, wall-to-lumen ratio (WLR), and choriocapillaris perfusion parameters. Several studies reported measurable acute and chronic retinal vascular responses to exercise, although the direction, magnitude, and clinical meaning of these changes varied according to population, exercise modality, imaging technique, and biomarker. Observational studies generally reported associations between higher physical activity or cardiorespiratory fitness and a more favorable retinal vascular profile, but causal interpretation remains limited. Conclusions: Retinal microvascular biomarkers appear sensitive to acute physiological stress and may reflect selected adaptations associated with longer-term exercise exposure. However, retinal responses are heterogeneous and biomarker-specific, and their biological and clinical significance remains incompletely established. Methodological heterogeneity, overlapping study cohorts, and the limited number of adequately powered randomized and longitudinal studies constrain causal interpretation and generalizability. Retinal vascular measures should therefore currently be regarded as candidate biomarkers and research tools rather than validated surrogate outcomes or routine clinical measures.