Eye Irritation Research Articles

Bleaching Agents: A Review of Their Utilization and Management

Exposure to disinfectants, cleansers, and bleaching chemicals irritates the eyes, respiratory systems, and skin, triggering asthma and allergic rhinitis symptoms. Bleach, as the major constituent of cleansers, when used improperly or mixed with other indoor cleaning agents, produces harmful halogenated volatile organic compounds. This manuscript assesses the influence of excessive exposure to disinfectants, including bleaching agents, when used against infectious conditions related to SARS-COVID-19 and its management. The use and impact of different bleaching agents in cleansing and their associated problems have been analyzed and presented in this review. This analysis focuses on the conventional and post-pandemic approach towards bleaches. Usage of bleaching agents increased by a staggering 20.4% and 16.4% from January to March 2020 compared to the same period in 2018 and 2019. Mounting use of bleaching agents during the COVID-19 pandemic resulted in negative health effects like asthma, eye irritation, and skin allergies. An approximately 42% rise in poisoning cases, including a few deaths, has been associated with exposure to harmful chemicals involving bleaches during the recent pandemic. Bleaching agents are the primary sources of hazardous indoor pollutants; therefore, despite their importance in disinfection, their utility must be substantiated based on legal guidelines, disposal, and remedial measures. Thus, conducting future occupational exposure assessment studies for bleach hazard management is crucial.

Impact of Indoor Air Pollution on Women’s Health: A Study on Sylhet City

Indoor air pollution is a significant and often overlooked environmental concern that has far-reaching implications for human health. In Bangladesh, indoor air pollution is one of the greatest environmental health risks. The study aims to provide insights into the specific ways in which indoor air pollution affects women’s health and well-being, as well as to identify potential strategies for mitigating these effects. With a focus on the diverse sources of indoor pollutants and their potential health effects. This qualitative research paper describes the impact of indoor air pollution on women’s health, focusing on the experiences, perceptions, and challenges faced by women in relation to their indoor living environments. This research used a qualitative approach, descriptive type research, purposive sampling strategy, and utilizing semi-structured interviews as the primary data collection method. A sample size of 50 women is targeted, with data saturation as the criterion for stopping data collection. Thematic analysis is used to analyze the interview transcripts. A critical analysis of the health effects of indoor air pollution on women is presented, encompassing consequences. The effects include exacerbation of respiratory conditions, allergies, eye and skin irritations. In conclusion, this research paper emphasizes the urgent need for a comprehensive understanding of the intricate relationship between indoor air pollution and women’s health. It underscores the importance of interdisciplinary collaboration among public health experts, environmental scientists, policymakers, and advocates to develop effective strategies that safeguard women’s well-being.

Environmental health risk assessment and acute effects of sulfur dioxide (SO2) inhalation exposure on traditional sulfur miners at Ijen Crater Volcano, Indonesia

The Ijen Crater volcano is one of the geological wonders recognized by UNESCO. Inside it is a blue lake with a high acidity level, and a blue fire phenomenon has formed due to the very high concentration of sulfur. This crater is also one of Indonesia's largest sources of sulfur and is used by locals as a traditional sulfur mine. This study aims to measure SO2 concentrations and assess the health risks of SO2 exposure in traditional sulfur mine workers. The SO2 measurements were taken using impingers at six sample points along the mine workers' path. In addition, anthropometric data, work activity patterns, and health complaints during work were collected through direct interviews with 30 respondents selected based on inclusion criteria. Short-Term Health Impact Method was carried out based on a comparison of threshold level values and acute effects obtained from interviews regarding health complaints. The Hazard Question Index (HQ Index) of SO2 exposure was calculated using the health risk assessment method. The SO2 concentrations between 3.14 and 18.24 mg/m3. All sample points were above the quality standard threshold set by the EPA of 1.97 mg/m3. The most common health complaints workers experienced were eye irritation and coughing while working, followed by headache, shortness of breath, and skin irritation. The HQ index of SO2 exposure in workers was 1.02 for real-time exposure and 2.15 for long-term exposure. An HQ index ≥ 1 indicates a potential health risk for workers. Therefore, it is important to control workers' SO2 exposure.

Safety and efficacy of a feed additive consisting of Saccharomyces cerevisiae NCYC R618 (Benesacc®) for chickens for fattening and other poultry species for fattening and reared for laying (Global Nutritech Biyoteknoloji Ltd. Sti).

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of Saccharomyces cerevisiae NCYC R618 as a zootechnical feed additive (functional group: gut flora stabiliser) for chickens for fattening and other poultry species for fattening and reared for laying. The additive has never been authorised. The strain under assessment S. cerevisiae (NCYC R618) qualifies for the qualified presumption of safety (QPS) and, consequently, the FEEDAP Panel concluded that the product is safe for the target species, the consumers and the environment. The FEEDAP Panel could not conclude on the skin and eye irritation or skin sensitisation potential of the additive. The additive should be considered a respiratory sensitiser. Due to the lack of sufficient data, the Panel cannot conclude on the efficacy of the additive under the proposed conditions of use.

Safety and efficacy of a feed additive consisting of Lentilactobacillus buchneriDSM 32651 for all animal species (BioCC OÜ).

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of Lentilactobacillus buchneri DSM 32651 when used as a technological additive to improve ensiling of fresh plant material. The additive is intended for use in all fresh material for all animal species at a proposed minimum concentration of 1 × 108 colony forming units (CFU)/kg fresh plant material. The bacterial species L. buchneri is considered by EFSA to be suitable for the qualified presumption of safety approach to safety assessment. The identity of the strain was established and no acquired antimicrobial resistance genes of concern were detected. Therefore, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of the strain as a silage additive is considered safe for all the animal species, for consumers of products from animals fed the treated silage and for the environment. Regarding user safety, the additive should be considered as a potential skin and respiratory sensitiser, and any exposure through skin and respiratory tract is considered a risk. The additive is not an eye irritant. The FEEDAP Panel concluded that the additive consisting of L. buchneri DSM 32651 at a minimum concentration of 1 × 108 CFU/kg fresh material may extend the aerobic stability of silage prepared from fresh plant material with a DM range of 28%-45%.

How environmentally friendly is the disposal of clear aligners? A gas chromatography-mass spectrometry study

Used clear aligner trays are often indiscriminately disposed of with general plastic waste and incinerated. This study aimed to analyze the smoke composition from incinerating 2 common aligner materials: glycol-modified polyethylene terephthalate (PET-G) and polyurethane. Each of the 2 materials in triplets was thermoformed. The thermoformed trays were shredded and subjected individually to open-fire combustion, ignited using a methane torch, in a specially designed combustion chamber. The resultant smoke was collected and analyzed using gas chromatography-mass spectrometry to study its in-depth composition. A total of 20 peaks, corresponding to 20 compounds, were identified from each of the 2 material samples. O-xylene (21.06%) showed the maximum concentration in the PET-G sample, whereas 1,4-dimethyl-1,3-cyclohexadiene in polyurethane (18.88%). The first peak in the PET-G sample corresponded to benzene with a relative concentration of 5.18%. Four compounds were common to both samples: 1,4-dimethyl-1,3-cyclohexadiene; 1,3-cyclohexadiene, 2,3-dimethyl-; 1-hydroxymethly-4-methylenecyclohexane; and cyclohexanemethanol, 4-methylene-. Benzene, a group 1 carcinogen, was identified in the PET-G smoke sample, whereas tetrahydrofuran, a suspected carcinogen, was found in the polyurethane sample. Some compounds were hazardous, whereas most were skin, eye, and respiratory irritants. Possible mitigation strategies include proper case selection, efficient manufacturing, direct 3-dimensional printing, and developing biodegradable materials. Clinicians can set up 'used aligner collection points' to ensure responsible disposal. Proper disposal guidelines and stringent regulations are the need of the hour.

Dermal toxicity studies of 1,2-benzisothiazolin-3-one (CAS number: 2634-33-5) in Sprague-Dawley rats

Biocides are used as preservatives in various household products, and 1,2-benzisothiazolin-3-one (BIT) is one of the popular chemicals. Therefore, BIT is highly likely to be exposed to human skin, necessitating dermal toxicity evaluation. In this study, we aimed to investigate dermal toxicity, eyes and skin irritation, and skin sensitization of BIT. All studies were conducted according to the Organisation for Economic Co-operation and Development testing guidelines. In acute dermal toxicity using rats, no treatment-related responses were observed at the highest dose (2000 mg/kg). A 28-day repeated dermal toxicity study at 1, 4, and 12 mg/kg/day showed transient local skin irritation lesions, including erythema, exfoliation, and crust formation. Based on no systemic effects, the no observed adverse effect level (NOAEL) of BIT of the 28-day repeated dermal toxicity study was determined to be 12 mg/kg/day. Eye and skin irritation tests showed that BIT is a strong irritant and corrosive to the eyes and a mild irritant to the skin. However, BIT showed no skin sensitization reactions in a local lymph node assay. These dermal toxicity studies can provide valuable information for the risk assessment of BIT.

Empowering vision: the impact of nursing-led educational program on patients with dry eye syndrome

BackgroundDry eye syndrome (DES) is a widespread ocular condition affecting the general population. It is a complex disorder affecting the eye surface, characterized by a tear film imbalance and ocular symptoms such as eye ache, burning, irritation, dryness, blurred vision, and foreign body sensation. DES can reduce visual acuity, increase the risk of ocular infection, and significantly impact daily activities and quality of life.AimDetermine the impact of nursing-led educational program on the management of DES and patients’ health outcomes including the intensity of DES symptoms and their influence on visual-related functions.MethodsThe study was conducted with a quasi-experimental design. Sixty adult patients diagnosed with DES were selected using a convenience sampling method. Two tools were employed for the collection of data. Tool I: Precipitating factors of DES structured interview schedule. Tool II: Ocular surface disease index (OSDI) to assess ocular irritation symptoms associated with DES and their effect on functions related to vision.ResultsA statistically significant decrease in the mean scores of OSDI in the study group two weeks after the implementation of the educational program regarding the ocular symptoms, functions associated with vision, environmental triggers, and overall score of OSDI.ConclusionImplementing an educational program for DES is effective in relieving symptoms, boosting patients’ understanding of managing symptoms effectively, and maintaining eye health. Therefore, patients must be instructed on dry eye early detection and management to enhance health-related outcomes and self-care practices.RegistrationClinicalTrials.gov: NCT06288945.

Analysis of Nutritional Profiles, Mineral Content, and Contaminants in Palm Oil from Yenagoa Metropolis, Nigeria: Assessing Quality and Safety Standards

Aim: This study aims to evaluate the nutritional profiles, chemical compositions, and potential contamination of palm oil samples from different locations in Yenagoa Metropolis, Nigeria, to assess their quality and safety. Study Design: An analytical investigation was conducted, using proximate analysis, mineral content determination, and Gas Chromatography-Mass Spectrometry (GC-MS) to characterize the palm oil samples' composition and contamination levels. Place and Duration of Study: The research was carried out in Yenagoa Metropolis, Nigeria, from January to October 2023. Methods: Palm oil samples were collected from three distinct locations within Yenagoa Metropolis. Proximate analysis quantified moisture, ash, protein, fat, and carbohydrate contents. Mineral content was assessed for potassium, iron, magnesium, and phosphorus. GC-MS was employed to identify and quantify bioactive compounds and potential contaminants in the samples. Results: Moisture content ranged from 0.00% in sample C to 3.00% in sample A. Ash content was highest in samples B and C, at 20.06%, while sample C had the highest fat content at 47.0%. Potassium (10.9%) and phosphorus (0.53%) were also highest in sample C. GC-MS analysis revealed key bioactive compounds, such as n-hexadecanoic acid and squalene, but also detected harmful contaminants especially in samples A and B. Presence of Isobutylene glycol and various oxiranes can cause skin, eye, and respiratory irritation, with prolonged exposure leading to severe health issues. Benzene, toluene, Trimethylamine compound with Borane, Pentane 3-ethyl-2-methyl and Heptane 2-methyl are associated with respiratory problems, neurological damage, and potential long-term organ effects. Contaminants in the oil samples were attributed to inadequate refining, contaminated raw materials, improper handling, and environmental pollution. This study emphasizes the nutritional value of palm oil while highlighting the need for improved quality control measures to ensure the safety and efficacy of palm oil products.

Molecular toxicological prediction of the ethanolic extract of the species Siparuna guianensis

The species Siparuna guianensis has anti-inflammatory, analgesic and anti-infectious potential, but there is a lack of safety and toxicity parameters for the medicinal use of the plant. The aim of this study was to identify the phytochemical compounds and carry out the molecular toxicological prediction of the ethanolic extract of the species Siparuna guianensis. The ethanolic extract of the leaves of S. guianensis was obtained and GC-MS gas chromatography was carried out to identify the secondary metabolites, for subsequent quantification of the in silico toxicological properties in terms of carcinogenicity in rodents, Ames mutagenicity, eye irritation, skin irritation and sensitization. The molecules 2-undecanone, decanoic acid, ethyl ester of decanoic acid and 2-tetradecanone were the most satisfactory, with no risk of carcinogenicity in female mice, mutagenicity, skin sensitization or eye irritation, which suggests that the plant could be a promising and safe source for the development of future drugs with low toxicological potential.

Health Risks and Dust Exposure among Flour Mill Workers in Eastern India: A Comprehensive Study

Flour milling, a prevalent agricultural industry in semi-urban and urban areas of India, involves grinding whole wheat to produce flour. However, this indoor occupation exposes workers to hazardous flour dust for prolonged periods without adequate ventilation. To investigate the health implications, a study was conducted on 142 flour mill workers in and around Bhubaneswar, Odisha. The findings revealed significant health issues, including respiratory problems (20%), eye irritation (8.6%), headache (11.4%), and shortness of breath (31.4%) among workers. Alarming levels of PM2.5 (330–385 ?g m-3) and PM10 (420–470 ?g m-3) dust particles were recorded. Notably, workers with over 10-15 years of experience displayed reduced pulmonary function, with a decline in force vital capacity (FVC) and forced expiratory volume in one second (FEV1). To mitigate these risks, the study recommends implementing personal protective equipment, improved ventilation, and regular medical care for flour mill workers.

Probing the relevance of synergistic lipid membrane disruption to the eye irritation of binary mixed nonionic surfactants

Nonionic surfactant aerosols play a crucial role in many industries, but they can cause acute irritation to users’ eyes during spraying. This cytotoxic process is associated with corneal cell necrosis causing cell membrane disruption. Industrial grade surfactants are typically polydisperse mixtures described by their nominal chemical structure but how the polydispersity affects their interactions with cell membrane, remains largely unexplored. A better understanding could benefit product formulations to maximise their efficiency whilst minimising their toxicity to the users. In this study, poly-oxyethylene glycol monododecyl ethers (C12E4, C12E23) were used to form ideal binary surfactant mixtures. The cytotoxicities of mono and polydispersed surfactants towards human corneal epithelial cells were examined, followed by a series of biophysical characterisations of interactions between surfactants and model cell membranes. Notably, to probe the journey of individual C12E4 and C12E23 surfactant molecules across the cell membrane from a binary surfactant mixture, “two-colour” neutron reflection measurements were achieved via Hydrogen/Deuterium substitution. The relative distributions of C12E4 and C12E23 across cell membranes and their nanostructural conformations revealed a synergistic membrane-lytic ability initiated by surfactant mixing, with the more hydrophobic C12E4 exhibiting stronger membrane binding potency than the hydrophilic C12E23. The exact molar ratio of C12E4 against C12E23 in the mixture determined how the mixed surfactant interacted with the cell membrane, and how the process directly impacted cytotoxicity and eye irritation. Thus, the cytotoxicity of polydisperse surfactants is not the same as monodisperse surfactant of the same average structure. This work provides a useful basis for the assessment of surfactant mixing by balancing their efficiency and toxicity.

Environmental Impact of Heavy Metals on Health in Soils Polluted with Medical Waste in Baiji City

Due to the environmental concerns of improper medical waste management inside and outside hospitals and health institutions, this issue is one of the most important environmental studies topics. Four places in Baiji City in Iraq were selected as study areas: Al-Hajjaj Health Center, Al-Boutama Health Center, Al-Zuwai Health Center, and Baiji General Hospital. This study investigates the environmental health risks of incineration treating hospital waste and health centers. According to the data obtained from practical and laboratory studies, Baiji General Hospital had the highest concentrations of the five toxic heavy metals tested, i.e., lead, cadmium, chromium, zinc, and nickel. These values peaked at 98.36, 59.54, 58.74, 79.52, and 13.32 mg/l for Pb+2, Cd+2, Cr+3, Ni+2, and Zn+2, respectively. Exceeding the measured values of toxic metal elements within internationally permissible limits increases the concentration of these toxic metals, posing greater health risks to the population. This process appears clearly and significantly if medical waste is burned in random locations, producing toxic fumes and gases that can cause diseases dangerous to health when inhaled; therefore, there must be mechanisms and scientific management to control the combustion process in private health incinerators. The survey results showed that the indiscriminate burning of medical waste in surveyed areas leads to diseases and can pose a tangible and immediate threat to human life, such as high blood pressure, eye irritations, suffocation of patients with difficulty and shortness of breath, and asthma, especially the elderly and newborns. Original overshooting of the measured values of toxic metal elements within the internationally permissible limits can increase the concentration of these toxic metals, posing more significant health risks to the population.

Blinded by smoke: Wildfire smoke exposure and eye irritation in australian wildland firefighters

PurposeWildfire occurrence is increasing worldwide, putting firefighters and general public at increased risk of eye injuries from smoke exposure. This study explored ocular symptoms and use of protective eyewear amongst wildland firefighters in Australia. MethodsAustralian wildland firefighters were invited to complete an online survey about the occurrence of eye irritation, use of protective eyewear and behaviours associated with occupational smoke exposure. Responses were analysed using logistic regression and qualitative inductive content analysis. Results338 wildland firefighters completed the survey. Eye irritation was reported by 90 % of firefighters at least sometimes during work and by 70 % after work. Frequency of eye irritation was greater amongst females than males (OR 2.01, CI 1.22–3.31, p < 0.001). Protective eyewear was used often or always by 67 % of firefighters on the fireground, however 55 % had to remove their protective eyewear due to sweat, fogging or another reason. Goggles were more likely to be removed compared to sunglasses and safety glasses (OR 4.28, CI 2.75–6.68, p < 0.001).Firefighters reported that, at times smoke exposure necessitated eye closure and impaired vision on the fireground. Firefighters also reported that protective eyewear helped to reduce eye symptoms, but its consistent use on the fireground was difficult. The severity and recovery from eye symptoms varied between participants. ConclusionAustralian wildland firefighters frequently experience eye irritation from smoke exposure, and this can affect operational capabilities. These findings can support the development of evidence-based strategies to help protect and aid recovery of the eye surface following smoke exposure.

Development of Sensitive In Vitro Protocols for the Biocompatibility Testing of Medical Devices and Pharmaceuticals Intended for Contact with the Eyes: Acute Irritation and Phototoxicity Assessment.

This study introduces a novel in vitro methodology that employs the 3-D reconstructed tissue model, EpiOcular, to assess the irritation and phototoxicity potential of medical devices and drugs in contact with the eye. Our study evaluated diverse test materials, including medical devices, ophthalmological solutions and an experimental drug (cemtirestat), for their potential to cause eye irritation and phototoxicity. The protocols used in this study with the EpiOcular tissue model were akin to those used in the ultra-mildness testing of cosmetic formulations, which is challenging to predict with standard in vivo rabbit tests. To design these protocols, we leveraged experience gained from the validation project on the EpiDerm skin irritation test for medical devices (ISO 10993-23:2021) and the OECD TG 498 method for photo-irritation testing. The predictions were based on the tissue viability and inflammatory response, as determined by IL-1α release. By developing and evaluating these protocols for medical devices, we aimed to expand the applicability domain of the tests referred to in ISO 10993-23. This will contribute to the standardisation and cost-effective safety evaluation of ophthalmic products, while reducing reliance on animal testing in this field. The findings obtained from the EpiOcular model in the photo-irritation test could support its implementation in the testing strategies outlined in OECD TG 498.

Acceptance and willingness of patients with chronic facial nerve palsy for an implantable device that assists with eye closure

Patients with facial nerve palsy often experience lagophthalmos (incomplete eye closure), which can lead to exposure keratitis. The Bionic Lid Implant for Natural Eye Closure (BLINC) is a medical device designed to mimic the morenatural blink kinetics than traditional lid loading techniques. This study aimed to evaluate potential factors that might influence the design of the BLINC device and willingness of participant to undergo the implant placement surgery. Patients attending a multidisciplinary facial nerve clinic were invited to complete a survey addressing patient acceptance of the BLINC device implantation. Seventy-two patients were mailed the survey, of which 50 returned completed surveys (69%). The most important factor identified by participants was the device function (81% ranked as very important) and the least important factor was cost (16% ranked as very important). Median acceptable device function time was 5 years (range 1-10 years). Ten participants (20%) indicated willingness to be the first to trial BLINC. Women were more likely to rate visual appearance as important (OR 3.32, CI 1.14-9.62, p=0.028), and less likely to rate user friendliness as important (OR 0.16, CI 0.04-0.52, p=0.0021). Older participants were more likely to rate the length of recovery period as important (OR 1.04, CI 1.01-1.08, p=0.006). Participants with complete eye closure were less likely to be willing to trial the implant (OR 0.08, CI 0.00-0.53, p = 0.006, whilst patients with eye irritation were more willing to trial the implant (OR 7.20, CI 1.12-142, p = 0.036). Certain patient demographics impact patient aesthetic and functional preferences and the willingness to trial the BLINC device.

Ex Vivo Irritation Evaluation of a Novel Brimonidine Nanoemulsion Using the Hen's Egg Test on Chorioallantoic Membrane (HET-CAM).

The hen's egg test on chorioallantoic membrane (HET-CAM) assay is a cost-effective and well-validated, non-animal-based ex vivo method for evaluating the irritant potential and eye toxicity of substances. A colloidal dispersion of a surfactant and a cosurfactant with a nanosize range is called a nanoemulsion (NE), which is formed by mixing immiscible liquids and stabilized by surfactants. Patients with glaucoma are commonly prescribed Brimonidine (BR), an alpha-2 adrenergic agonist, to lower their intraocular pressure. In this study, surfactant-cosurfactant blends were prepared by mixing Tween 80 (surfactant) and propylene glycol (cosurfactant) in a 4:1(v/v) ratio. Triacetin served as the oil phase, while deionized water was used as the aqueous phase. Using the drop method, a range of NE formulations (F1, F2, F3, FB1, FB2, and FB3) were developed and subsequently evaluated for their potential to irritate, and then the results were compared to those of a commercially available BR eye drop formulation. According to the average cumulative HET-CAM test scores (IS), from excipients, propylene glycol caused moderate irritation by causing slight damage to blood vessels. The formulations FB1 and F1 were found to have the highest level of irritation among other formulations in the investigation, recording 1.05 ±0.07 and 1.2 ±0.10, respectively. All other NE formulations exhibited non-irritating potential, as confirmed by the HET-CAM test, and were comparable to the marketed BR eye drop formulation. The NE formulations created for BR were determined to be safe and non-irritating. The findings indicate that the prepared NE could be a beneficial solution for addressing problems with conventional eye drops and delivering BR effectively to the eyes.

Antibiotic-free ocular sterilization while suppressing immune response to protect corneal transparency in infectious keratitis treatment

Clinical guidelines for infectious keratitis treatment require that anti-inflammatory drugs can only be used after infection elimination, which causes irreversible inflammatory damage to the cornea. In this work, photodynamic metal organic frameworks (PCN-224) were used as drug carrier to load Pt NPs with catalase-like activity and anti-inflammatory drug (Dexamethasone, DXMS) for endogenous oxygen generation and reduced corneal damage, respectively. The photodynamic therapy (PDT) effect was greatly enhanced in bacteria elimination and bacterial biofilms removal through catalysis of overexpressed hydrogen peroxide (H2O2, ∼8.0 and 31.0 μM in bacterial solution and biofilms, respectively) into oxygen by Pt NPs. More importantly, the cationic liposome modified PCN-224@Pt@DXMS@Liposomes (PPDL NPs) greatly enhanced the adhesion to negatively charged ocular surface and penetration into corneal barrier and bacterial biofilms. Both in vitro cell viability test and in vivo eye irritation tests proved good biocompatibility of PPDL NPs under 660 nm laser irradiation. Furthermore, PDT of PPDL NPs in rapid bacteria killing was verified through infectious keratitis animal model. The superior bactericidal effect of antibacterial materials could largely replace the bactericidal effect of the immune system. It is worth mentioning that this simultaneous sterilization and anti-inflammation treatment mode is a new exploration against the clinical treatment guidelines.

Assessing Covi-19’s Effects on Mental Health in Nursing Students During E-Learning in Pandemic

Introduction: Covid-19 declared by WHO as a pandemic, from the time of experiencing it for the first time until now has caused many deaths all over the world. As a consequence of this pandemic, all public and private institutions tried to adapt life and work. Academic institutions in this period choose to continue with online platforms. This sudden switch from face to face to online learning has caused not only problems during lessons but also in mental and physical health of the students. Objectives: The study aims to evaluate the level of anxiety among nursing students who study at public nursing faculty in Tirana, Albania. Methods: A cross-sectional and descriptive study was performed in April- May 2023 at Faculty of Technical Medical Science Tirana, Albania. The study involved nursing students in their third year of Bachelor and first year of Professional Master and Master of Science because only these students have taken online lessons. They were 278 in total. Results: The students responded (n = 278) to a questionnaire following GAD7 and HAM-A with some other basic information. Our findings showed that the level of moderate, severe and very severe anxiety range 30.53%, 3.38% and 1. 53% respectively. A significant relationship was found between gender, age and psychological impact (p=.057; p=.001). The most dominant symptoms were headache (192, 69.10%) and eye irritation (191, 68.70%). 137,49.30% of the respondents think that the lockdown had moderate impact on study. Conclusions: By applying different methods of assessing the level of anxiety, we found that our nursing students experienced anxiety caused on by the COVID-19 pandemic and isolation just like other nursing students around the world. Designing and consolidating strategies (mental health services or psychological counseling) by faculty members to face similar pandemic situations in the future, would help reduce anxiety among students because they will be professionals tomorrow, thus it is important to take care for their mental health.

Time dependency and individual variation in human sensory irritation from acrolein – a controlled exposure study

ABSTRACT Acrolein is considered a risk factor for indoor air health problems due to its reactivity. An objective of the study was to investigate prevalence of sensory irritation in terms of time-dependent detection and perceived intensity of symptoms in human volunteers. Another objective was to investigate individual variation in sensory irritation. Participants (n=40) were exposed twice in an exposure chamber (15 min), once to heptane and once to acrolein and heptane. Symptoms and sensory irritation thresholds were rated continuously and 70% of the participants detected eye irritation from the acrolein exposure. A significant interaction between time and exposure (ƞp2=0.19) was identified, indicating time-dependent activation. This group also reported a higher level of stress and lower self-reported health (p<0.05). The results suggest that the eye is the primary system affected by exposure to acrolein, and that duration of exposure and perceived stress play important roles in symptom reactions due to acrolein exposure.