https://www.selleckchem.com/products/bi-3406.html Physicians who encounter infected patients state that it is more difficult to provide ophthalmological services and their clinical approaches are affected more negatively. Anxiety levels of physicians who could access personal protective equipment (PPE) and show positive solidarity with their colleagues in the process were found to be lower. Our study revealed that ophthalmologists, like other healthcare professionals, were severely affected by the COVID-19 outbreak. Accordingly, healthcare managers should provide adequate PPE for ophthalmologists, organize the clinical operation, and support the mental health of ophthalmologists. Our study revealed that ophthalmologists, like other healthcare professionals, were severely affected by the COVID-19 outbreak. Accordingly, healthcare managers should provide adequate PPE for ophthalmologists, organize the clinical operation, and support the mental health of ophthalmologists. To compare serum thyroid hormone, vitamin B12, vitamin D3, folic acid, and ferritin levels between pediatric chalazion patients and healthy children. Under 18-year-old chalazion patients and age- and sex-matched healthy controls were included into this retrospective case-control study. The peripheric blood sampling results obtained within six months from ophthalmological examination were investigated for statistical analysis. Free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), vitamin B12, vitamin D3, folic acid, and ferritin levels of the chalazion and control groups were compared. The male-to-female ratio was 8/28 in the chalazion group and 22/48 in the control group (p > 0.05). The mean age was 13.891 ± 3.924years (3-17) and 12.346 ± 3.963years (4-17) in the groups, respectively (p > 0.05). The mean time between ophthalmological examination and peripheric blood sampling was 3.012 ± 2.201months (0-6) and 2.092 ± 1.906months (0-6) in the groups, respectively (p > 0.0