: Numerous risk factors of cardiac diseases are influenced by health behaviours. An individual's health behaviours, somatic symptoms and even cardiac outcomes can be influenced by their personality. The aim of this study was to analyse the influence of personality traits on the knowledge and health behaviour of cardiac patients.
View Article and Find Full Text PDFTwo-photon absorption in indirect gap semiconductors is a frequently encountered, but not well-understood phenomenon. To address this, the real-density matrix approach is applied to describe two-photon absorption in silicon through the excitonic response to the interacting fields. This approach produces an analytical expression for the dispersion of the two-photon absorption coefficient for indirect-gap materials and can be used to explain trends in reported experimental data for bulk silicon both old and new with minimal fitting.
View Article and Find Full Text PDFWe investigate the nonlinear refraction induced by Rydberg excitons in Cu_{2}O. Using a high-precision interferometry imaging technique that spatially resolves the nonlinear phase shift, we observe significant shifts at extremely low laser intensity near each exciton resonance. From this, we derive the nonlinear index n_{2}, present the n_{2} spectrum for principal quantum numbers n≥5, and report large n_{2} values of order 10^{-3} mm^{2}/mW.
View Article and Find Full Text PDFThe year 2019 marks the 30th anniversary of the American Contact Dermatitis Society (ACDS). The work of inaugural ACDS members and the 3 decades of camaraderie, collaboration, education, and investigation of contact dermatitis that followed the inception of the ACDS are celebrated in this historical account.
View Article and Find Full Text PDFPurpose. To evaluate the spatial distribution of photoreceptor inner and outer segment junction (IS/OS) reflectivity changes after successful vitrectomy for macula-off retinal detachment (PPV-mOFF) using spectral domain optical coherence tomography (SdOCT). Methods.
View Article and Find Full Text PDFPurpose: To evaluate the use of lower tear meniscus measurements obtained with anterior segment Spectral Optical Coherence Tomography (OCT) in quantitative tear evaluation and diagnosis of dry eye syndrome. To verify sensitivity and specificity of different tear meniscus parameters in diagnosis of dry eye syndrome.
Methods: A total of 111 eyes in consecutive patients, mean age 34.
Purpose: Neurofibromatosis type 1 is one of the most common inherited syndromes. The aim of this study was to evaluate eye symptoms on this disease.
Material And Methods: 52 patients with neurofibromatosis type 1 were observed (28 males and 24 females), age between 3 and 49 years old (mean 21).
This study was to evaluate pathogenesis, symptoms, clinical course and possible treatment of neurofibromatosis type 1. Neurofibromatosis type 1, von Recklinghausen's disease, is one of the phacomatoses. It belongs to the most frequent inherited diseases in human population.
View Article and Find Full Text PDFPurpose: To evaluate chosen epidemiological factors in perforating eye injuries in own material
Material And Method: Retrospective case review over period from 2001 to 2003 hospitalised in the Department of Ophthalmology in Bydgoszcz. The group studied comprised 78 patients (79 eyes) aged from 4 to 77 years. Analyzed were following data: age, gender, the extend of the injury, visual acuity at presentation, the presence of - and intraocular foreign body nature, type of injury, professional activity, and other factors (alcohol use, glasses).
Purpose: To evaluate changes in corneal thickness after 2, 4, and 6 weeks of frequent-replacement contact lens wearing.
Material And Methods: Twenty-eight patients were fitted with ACUVUE (Johnson & Johnson) contact lenses. Central and peripheral corneal thickness was measured before contact lens fitting and after 2, 4, and 6 weeks of wearing.
Purpose: To measure the level of satisfaction connected with use of frequent replacement contact lenses.
Material And Methods: Questionnaire forms were sent to 600 patients aged 7 to 54 years fitted with contact lenses between the years 1996 to 1999. Each questionnaire consisted of 31 questions about satisfaction, complications and every day care.
Purpose: Retrospective evaluation of PC IOL power calculation accuracy and comparison of the refractive errors after ECCE resulted from different methods of calculation.
Material And Methods: The PC IOL power in 100 eyes with senile cataract without significant refractive errors, was calculated using SRK II formula with two different biometers and based on primary refraction. The final IOL power was established by surgeon based on all mentioned calculations (surgeon choice).
Purpose: To compare the heparin-surface-modified and the regular polymethylmethacrylate posterior chamber intraocular lenses regarding cellular reactions one year after extracapsular cataract extraction.
Material And Methods: 62 patients of either sex, with senile cataract, without diabetes and any preoperative pathology of the eye, were included in the study. 30 patients received HSM PMMA PC IOL and 32 patients received unmodified PMMA PC IOL.
Purpose: Evaluation which of the lenses: monofocal, bifocal or progressive, assure the best visual acuity in patients.
Material And Methods: 86 patients aged from 21 to 84 years were operated. Monofocal lenses were implanted in 30 cases, bifocal in 32 and progressive in 24 cases.
Purpose: Comparison of endothelial cells density in eyes after PMMA and heparin-surface-modified lenses (HSfM1) implantation.
Material And Methods: 58 patients (26 male and 32 female) aged from 36 to 89 years. In 30 patients PMMA lenses produced by Pharmacia, Storz and Alcon and in 28 HSM (Pharmacia) lenses were implanted, after ECCE.
Purpose: Assessment of the density of endothelial cells after usage of gentamicin in irrigation-aspiration fluid.
Material And Methods: 60 patients subjected to extracapsular cataract extraction with intraocular lens implantation. In 30 eyes irrigation was performed with Ringer fluid (group I) and in 30 eyes Ringer fluid with gentamicin (group II) 4 mg gentamicin were added to 500 ml of Ringer fluid obtaining the concentration 8 micrograms/ml.