scholarly journals Photostress Recovery Time Among Welders in Owerri Municipal Council, Southeast, Nigeria

2021 ◽  
Vol 23 (1) ◽  
pp. 4-10
Author(s):  
Augustine U. Akujobi ◽  
Gift O. Uzomah ◽  
Oforbuike O. Ike ◽  
John C. Ekenze ◽  
Jacqueline E. Obioma-Elemba ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Work Experience ◽  
Recovery Time ◽  
Electric Arc ◽  
Age Group ◽  
Quasi Experimental ◽  
Media Opacities ◽  
Time Required ◽  
The Right ◽  
Photostress Recovery Time

Purpose: The photostress recovery time (PSRT) scores of welders were measured based on age, workexperience and welding-method.Methods: A quasi-experimental study was conducted among 50 purposively sampled welders, who had clear ocular media, healthy fundi and visual acuities of 6/6 or better in the tested eyes. The pre-bleach distant visual acuity of the right eye was determined with the Snellen’s visual acuity chart, while direct ophthalmoscopy was done to rule out media opacities, retinopathies and maculopathies. The  right eye was dazzled for 10 seconds with the light of a direct ophthalmoscope held at 2cm from the eye. The time required in seconds to read at least, three optotypes on the line directly above the baseline acuity was recorded as the PSRT.Results: The 22-31 years age group recorded the least mean PSRT (16±8.8seconds), followed by the 32-41 age group (19.9±6.8 seconds), while the 42-51 years category had the highest mean PSRT (31.4±10.5seconds). Age associated significantly (p˂0.05) with mean PSRT. Welders within the 1-12 years’ work experience had the least mean PSRT (15.9±8.1seconds) while those within the 25-36 years recorded the highest mean PSRT (33.4±9.3seconds). The observed difference in mean PSRT with years of work experience was statistically significant (p˂0.05). Gas welders had significantly (p˂0.05) higher mean PSRT (26.6±9.9secs) than electric arc welders (16.6±9.2secs).Conclusion: Gas welding, increasing age and work-experience were found to be predictive markers of elevated photostress recovery time (PSRT) among welders. This underscores the need for eye-care practitioners to routinize PSRT tests in the ocular assessment of welders. Keywords: Photostress recovery time (PSRT); electric-arc; gas welding; welders; age.

Required time for setting up an anaesthesia machine mounted on a movable ceiling pendant

2018 ◽  
Vol 29 (7-8) ◽  
pp. 237-241
Author(s):  
Kazuhiro Shirozu ◽  
Tetsuya Kai ◽  
Mizuho Fukumoto ◽  
Kumiko Ippoushi ◽  
Hidekazu Setoguchi ◽  
...  
Keyword(s):  
Operating Room ◽  
Musculoskeletal System ◽  
Work Experience ◽  
Anaesthesia Machine ◽  
Manual Operation ◽  
Experienced Nurses ◽  
Set Up ◽  
Time Required ◽  
The Right ◽  
Manual Movement

The present study was performed to evaluate the duration of time required to set up an anaesthesia machine mounted on an automated or manually movable ceiling pendant. Nurses moved the machine’s position according to the surgical site (right or left). The duration of time required to set up the anaesthesia machine for surgery was compared between automated and manual operation and among nurses with varying years of work experience. Movement of the anaesthesia machine from the right to left position took longer for the automated (278 ± 11s) than manual (188 ± 63s) method. However, no difference was observed between automated (288 ± 11s) and manual (267 ± 140s) movement of the machine from the left to right position. Experienced nurses took less time in both directions. Manual movement took less time than automated movement in the right-to-left direction, which may be advantageous when nurses are in a hurry or have musculoskeletal system disorders and may allow them to perform other operating room preparation tasks. Either automated or manual movement may be used depending on the situation. Both the larger deviations with manual movement and the shorter time required by experienced nurses suggest that training and experience shorten the manual set-up time.

scholarly journals Normative value of photostress recovery time among various age groups in southern India

2020 ◽  
Vol 1 (1) ◽  
pp. 11-17
Author(s):  
Bhandari Bishwash ◽  
De Tapas Kumar ◽  
Sah Sanjay Kumar ◽  
Sanyam Sandip Das
Keyword(s):  
Recovery Time ◽  
Age Groups ◽  
Reference Value ◽  
Reproductive Age ◽  
Age Group ◽  
Cross Sectional ◽  
Corrected Distance Visual Acuity ◽  
Age Range ◽  
Photostress Recovery Time ◽  
Reproductive Age Group

Background: To determine the normative data and reference value for photostress recovery time (PSRT) following exposure of the macula to light, in various age groups within the Indian population. Methods: Cross-sectional observational study performed from November 2015 to July 2016 in the Bangalore district of Karnataka state in India. We examined a total of 1,282 eyes of 641 participants and included those with corrected distance visual acuity (CDVA) scoes lower than  or equal to 0.4 Logarithm of the Minimum Angle of Resolution (LogMAR). We performed the photostress procedure under standard conditions using the same approach. Results: The mean ± standard deviation (SD) of the participants’ age was 32.04 ± 15.80, with an age range of 8 to 70 years. The PSRT in participants below 16 years and above 45 years of age were significantly different compared to the 16–25-year-old age group (P  <  0.0001 for both). The PSRT values were significantly different between males and females in the reproductive age group (16 to 45 years old) (P  < 0.0001), but not in the other age groups. Conclusions: The PSRT values were significantly different in children and older patients compared to the 16 to 25 years age group. We found that as age increased, PSRT increased significantly.

Change in Visual Acuity in Relation to Central Macular Thickness after Intravitreal Bevacizumab in Diabetic Macular Edema

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Muhammad Ali Haider ◽  
Uzma Sattar ◽  
Syeda Rushda Zaidi
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Intravitreal Bevacizumab ◽  
Macular Thickness ◽  
Rank Test ◽  
P Value ◽  
Central Macular Thickness ◽  
Anti Vegf ◽  
Quasi Experimental

Purpose: To evaluate the change in visual acuity in relation to decrease in central macular thickness,after a single dose of intravitreal Bevacizumab injection.Study Design: Quasi experimental study.Place and Duration of Study: Punjab Rangers Teaching Hospital, Lahore, from January 2019 to June 2019.Material and Methods: 70 eyes with diabetic macular edema were included in the study. Patients having high refractive errors (spherical equivalent of > ± 7.5D) and visual acuity worse than +1.2 or better than +0.2 on log MAR were excluded. Central macular edema was measured in μm on OCT and visual acuity was documentedusing Log MAR chart. These values were documented before and at 01 month after injection with intravitrealBevacizumab. Wilcoxon Signed rank test was used to evaluate the difference in VA beforeand after the anti-VEGF injection. Difference in visual acuity and macular edema (central) was observed,analyzed and represented in p value. P value was considered statistically significant if it was less than 0.01%.Results: Mean age of patients was 52.61 ± 1.3. Vision improved from 0.90 ± 0.02 to 0.84 ± 0.02 on log MARchart. The change was statistically significant with p value < 0.001. Central macular thickness reduced from 328 ±14 to 283 ± 10.6 μm on OCT after intravitreal anti-VEGF, with significant p value < 0.001.Conclusion: A 45 μm reduction in central macular thickness was associated with 0.1 Log MAR unit improvementin visual acuity after intravitreal Bevacizumab in diabetic macular edema.

scholarly journals Clinical Phenotype of PDE6B-Associated Retinitis Pigmentosa

2021 ◽  
Vol 22 (5) ◽  
pp. 2374
Author(s):  
Laura Kuehlewein ◽  
Ditta Zobor ◽  
Katarina Stingl ◽  
Melanie Kempf ◽  
Fadi Nasser ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Genetic Testing ◽  
Retinitis Pigmentosa ◽  
Fundus Autofluorescence ◽  
Retinal Disease ◽  
New Drugs ◽  
Autofluorescence Imaging ◽  
Full Field ◽  
Tertiary Referral Center ◽  
The Right

In this retrospective, longitudinal, observational cohort study, we investigated the phenotypic and genotypic features of retinitis pigmentosa associated with variants in the PDE6B gene. Patients underwent clinical examination and genetic testing at a single tertiary referral center, including best-corrected visual acuity (BCVA), kinetic visual field (VF), full-field electroretinography, full-field stimulus threshold, spectral domain optical coherence tomography, and fundus autofluorescence imaging. The genetic testing comprised candidate gene sequencing, inherited retinal disease gene panel sequencing, whole-genome sequencing, and testing for familial variants by Sanger sequencing. Twenty-four patients with mutations in PDE6B from 21 families were included in the study (mean age at the first visit: 32.1 ± 13.5 years). The majority of variants were putative splicing defects (8/23) and missense (7/23) mutations. Seventy-nine percent (38/48) of eyes had no visual acuity impairment at the first visit. Visual acuity impairment was mild in 4% (2/48), moderate in 13% (6/48), and severe in 4% (2/48). BCVA was symmetrical in the right and left eyes. The kinetic VF measurements were highly symmetrical in the right and left eyes, as was the horizontal ellipsoid zone (EZ) width. Regarding the genetic findings, 43% of the PDE6B variants found in our patients were novel. Thus, this study contributed substantially to the PDE6B mutation spectrum. The visual acuity impairment was mild in 83% of eyes, providing a window of opportunity for investigational new drugs. The EZ width was reduced in all patients and was highly symmetric between the eyes, making it a promising outcome measure. We expect these findings to have implications on the design of future PDE6B-related retinitis pigmentosa (RP) clinical trials.

Choroidal metastases: case report and review

2020 ◽  
pp. 1-7
Author(s):  
Victor Duque ◽  
Carolina de la Pinta ◽  
Ciriaco Corral ◽  
Carmen Vallejo ◽  
Margarita Martin ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Side Effects ◽  
External Beam Radiotherapy ◽  
Choroidal Metastasis ◽  
Good Visual Acuity ◽  
Good Local Control ◽  
Radiological Response ◽  
The Right ◽  
The Brain

Abstract Introduction: Choroidal metastases are the most frequent intraocular secondary tumours, with a prevalence of 2–7% according to the literature. Our aim was to review a clinical case of choroidal metastasis. We present a case of a 63-year-old male patient diagnosed in 2018 with lung adenocarcinoma cT4N0M1. The patient had three metastases in the brain, which were successfully treated with radiosurgery (RS). The patient was treated with chemotherapy with pemetrexed–cisplatin schedule. Five months after diagnosis, the patient presented with decreased vision in the right eye. After ophthalmologic evaluation, he was diagnosed with a right choroidal metastasis, which was treated with external beam radiotherapy with 20 Gy in five fractions, resulting in improved visual acuity and a complete clinical and radiological response. The patient took part in a clinical trial that continued with systemic chemotherapy. Twenty-two months after radiotherapy to the eye, the patient has good visual acuity without any side effects. Conclusions: Choroidal metastasis treated with radiotherapy achieves good local control, with limited side effects, allowing an improvement in visual acuity and consequently, an improvement in the patient´s quality of life.

scholarly journals Development of Stage 4 Macular Hole after Spontaneous Closure in a Patient with Stage 2 Macular Hole and a Lamellar Macular Hole-Associated Epiretinal Proliferation

2021 ◽  
pp. 481-484
Author(s):  
Masahisa Watanabe ◽  
Harumasa Yokota ◽  
Hiroshi Aso ◽  
Hirotsugu Hanazaki ◽  
Junya Hanaguri ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Hole ◽  
Spontaneous Closure ◽  
Surgical Removal ◽  
Lamellar Macular Hole ◽  
Full Thickness ◽  
Stage 4 ◽  
Full Thickness Macular Hole ◽  
The Right ◽  
Hole Closure

Herein, we report the longitudinal observation of a case with reopening of the macular hole associated with a lamellar macular hole-associated epiretinal proliferation (LHEP) followed by spontaneous closure in patients with stage 2 idiopathic macular hole. A 64-year-old woman was referred for the decreased visual acuity (VA) and acute anorthopia in the right eye. Funduscopy and optical coherence tomography (OCT) showed stage 2 full-thickness macular hole without posterior vitreous detachment (PVD) and operculum formation. Her best-corrected visual acuity (BCVA) was 20/32. One month later, the diameter of the macular hole was getting small and VA improved. Six months later, the macular hole was treated spontaneously with the attached hyaloid membrane to the macula by OCT and the BCVA improved to 20/20. Fourteen months after the first visit, the BCVA decreased to 20/50 and the patient was diagnosed with stage 4 macular hole with complete PVD. OCT showed full-thickness macular hole with a LHEP in the right eye. After 25G-gauge vitrectomy with the peeling of internal limiting membrane (ILM) and LHEP, the macular hole was closed and BCVA finally improved to 20/25. Spontaneous macular hole closure without PVD may rarely occur in patients with LHEP. The surgical removal of ILM and LHEP may contribute to the successful macular hole closure after vitrectomy.

scholarly journals Valsalva Retinopathy Associated with Sexual Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Khalid Al Rubaie ◽  
J. Fernando Arevalo
Keyword(s):  
Visual Acuity ◽  
Sexual Activity ◽  
Vision Loss ◽  
Internal Limiting Membrane ◽  
Internal Limiting Membrane Peeling ◽  
Sudden Loss ◽  
Initial Visual Acuity ◽  
Pars Plana ◽  
23 Gauge ◽  
The Right

A 54-year-old healthy male presented complaining of sudden loss of vision in the right eye. Initial visual acuity was counting fingers. The patient’s acute vision loss developed after sexual activity. Color fundus photos and fluorescein angiography were performed showing a large subinternal limiting membrane hemorrhage in the macular area. A 23-gauge sutureless pars plana vitrectomy with brilliant blue assisted internal limiting membrane peeling was performed with best-corrected visual acuity recovery to 20/50 at 6 months of followup.

scholarly journals Spontaneous Thrombosis of an Orbital Arteriovenous Malformation Revealing Hereditary Haemorrhagic Telangiectasia (Rendu-Osler-Weber Disease)

2011 ◽  
Vol 17 (4) ◽  
pp. 466-471 ◽  
Author(s):  
C. Van Went ◽  
A. Ozanne ◽  
G. Saliou ◽  
G. Dethorey ◽  
I. De Monchy ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Intraocular Pressure ◽  
Arteriovenous Malformation ◽  
Genetic Disorder ◽  
Hereditary Haemorrhagic Telangiectasia ◽  
Spontaneous Thrombosis ◽  
Vein Thrombosis ◽  
Recurrent Epistaxis ◽  
The Right ◽  
Central Retinal Vein

Hereditary Haemorrhagic Telangiectasia (HHT) is a genetic disorder responsible for cutaneous or mucosal telangiectasia and arteriovenous malformations (AVMs). The most frequent locations are lung and brain. In contrast, orbital AVMs are very rare. We describe a case of symptomatic orbital arteriovenous malformation due to spontaneous thrombosis. A 65-year-old woman was referred for chronic right eye proptosis associated with dilation of conjunctival vessels with a jellyfish pattern. Right visual acuity was 20/40 and intraocular pressure was 40 mmHg. Personal and familial history of recurrent epistaxis, associated with multiple telangiectasia within lips and palate, led to the diagnosis of HHT. Magnetic resonance imaging (MRI) completed with cerebral angiography found a giant and occluded AVM within the right orbit. Other AVMs were also found in brain and chest, confirming the diagnosis. Antiglaucomatous eyedrops were added to reduce intraocular pressure and a steroid therapy was begun. Two months later, visual acuity decreased in the right eye, due to a central retinal vein thrombosis. In conclusion, Most brain or pulmonary AVM can be treated by embolization. By contrast, this treatment in case of orbital location can lead to central retinal artery and/or central retinal vein occlusion, which may also appear as a spontaneous complication of the orbital AVM. Therapeutic management of orbital AVM is thus not standardized, and the balance between spontaneous and iatrogenic risk of visual loss has to be taken into account.

The Effectiveness of Crossword Puzzle in Improving Mufradat Skills

2021 ◽  
Vol 1 (2) ◽  
pp. 55-62
Author(s):  
Mutia Khaira
Keyword(s):  
Language Proficiency ◽  
Experimental Approach ◽  
Vocabulary Learning ◽  
Crossword Puzzle ◽  
Vocabulary Skills ◽  
Post Test ◽  
Quasi Experimental ◽  
Puzzle Games ◽  
The Right

Arabic mufradat is an element of various language elements, where the richness of vocabulary is part of the indicator of language proficiency. In reality, vocabulary learning often encounters obstacles, therefore choosing the right media is part of an effort to overcome the existing difficulties. This study aimed to test the effectiveness of the puzzle in improving Arabic vocabulary skills. This study was conducted with a quasi-experimental approach where data were obtained through pre-test and post-test. Based on the results, the use of puzzle games as learning media was effective to improve mufradat skills.

Professional Retraining in the Staffing System for the Mining Enterprises

2021 ◽  
pp. 79-84
Author(s):  
O.I. Kazanin ◽  
◽  
M.A. Marinin ◽  
A.M. Blinov ◽  
◽  
...  
Keyword(s):  
Professional Education ◽  
Work Experience ◽  
Basic Education ◽  
Integrated Approach ◽  
Legal Framework ◽  
Industrial Safety ◽  
Number Of Factors ◽  
The Right ◽  
Additional Education ◽  
Engineering Personnel

The issues are considered related to providing mining enterprises with the engineering personnel capable of managing mining and blasting operations. At present, not all the mining enterprises have a full staff of specialists and managers who are legally entitled to manage mining and blasting operations. Some employees who previously had such a right, after changes in the legal framework, ceased to meet the new requirements. The analysis is presented concerning the competencies required to perform these production functions, as well as educational programs that allow acquiring these competencies. The importance of professional retraining programs for solving these problems and the imperfection of the modern regulatory framework, which practically excludes the possibility of obtaining the right to manage mining and blasting operations, even after professional retraining for persons with a higher technical education in a non-mining profile, are shown in the article. An integrated approach is proposed for resolving the issues of the admissibility of obtaining the right to manage mining and blasting operations by these persons considering a number of factors: basic education, work experience and positions held at a mining enterprise, completed training in programs of additional education and professional retraining. Such programs should be developed and implemented by the organizations with experience in training mining engineers and having a license from Rosobrnadzor for the right to implement programs not only for additional professional education, but also for higher professional mining education. The need is substantiated in developing professional standards for managers of mining and blasting operations at the enterprises for the extraction of solid minerals. Recommendations were developed for amending the federal rules and regulations in the field of industrial safety in order to ensure the possibility of using professional retraining programs for training and final certification of the managers of mining and blasting operations.

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