Research Publications

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Open Access
Personal well-being index as a measure of quality of life of diverse groups of people with visual impairment and blindness
(Springer Science and Business Media B.V., 2024-04) Jayathilaka, R; Dunuwila, V; Attale, D; De Seram, H; Sudusinghe, D; Abeyrathna, I; Suraweera, T; Thelijjagoda, S
Today, the world adopts various assessment tools and indices to measure quality of life (QoL) of different persons. The Personal Well-being Index (PWI) is a popular and validated tool used by developed countries to assess the QoL of their citizens. The PWI consists of seven major domains that define people’s QoL. Thus, the main purpose of this study is to explore the application of PWI in measuring the QoL of the visually impaired and blind (VI and B) persons in Sri Lanka, and to identify how QoL varies with their demographic characteristics. Primary data revealed among 64 VI&B, 34 blind and 30 visually impaired people from Hambanthota, was analysed based on vision level, age, gender, marital status, and the level of education. Results indicated that visually impaired (VI) respondents had a higher PWI value than that of the blind. Accordingly, the age group of 40–59 contributes to a higher PWI value than that of others; while the results signify that the PWI values basically depend on the levels of education the participants received. It is significant that the blind and the partially sighted people are concerned about their future security to a greater extent compared to the other domains in the PWI. Also, QoL was perceived to deteriorate with age. Thus, it is evident that efforts to improve QoL of people with visual disabilities requires priority to secure a fruitful and secure future for them.
Embargo
Personal well-being index as a measure of quality of life of diverse groups of people with visual impairment and blindness
(Springer Science and Business Media B.V., 2023-07-12) Jayathilaka, R; Dunuwila, V; Attale, D; De Seram, H; Sudusinghe, D; Abeyrathna, I; Suraweera, T; Thelijjagoda, S
Today, the world adopts various assessment tools and indices to measure quality of life (QoL) of different persons. The Personal Well-being Index (PWI) is a popular and validated tool used by developed countries to assess the QoL of their citizens. The PWI consists of seven major domains that define people’s QoL. Thus, the main purpose of this study is to explore the application of PWI in measuring the QoL of the visually impaired and blind (VI and B) persons in Sri Lanka, and to identify how QoL varies with their demographic characteristics. Primary data revealed among 64 VI&B, 34 blind and 30 visually impaired people from Hambanthota, was analysed based on vision level, age, gender, marital status, and the level of education. Results indicated that visually impaired (VI) respondents had a higher PWI value than that of the blind. Accordingly, the age group of 40–59 contributes to a higher PWI value than that of others; while the results signify that the PWI values basically depend on the levels of education the participants received. It is significant that the blind and the partially sighted people are concerned about their future security to a greater extent compared to the other domains in the PWI. Also, QoL was perceived to deteriorate with age. Thus, it is evident that efforts to improve QoL of people with visual disabilities requires priority to secure a fruitful and secure future for them.
Open Access
Job seeker value proposition conceptualised from the perspective of the job choice theory
(2023-04-27) Jayasinghe, S; Suraweera, T; Samarasinghe, D
The job seeker value proposition (JSVP) can be defined as a set of benefits or values a firm promises its job seekers to deliver once they join it, signifying an indicator of its employer brand as well as focusing on job seeker attraction because it carries some information that helps the decisionmaking process of the prospective employees. In this concern, the job choice theory interprets the actual factors of a job seeker’s decision-making process, and therefore, it could be effectively used in conceptualising the JSVP. However, it is claimed that, in most cases, the job choice theory is not considered the basis for developing the construct of the JSVP. Therefore, taking the job choice theory into consideration, this paper aims to develop a framework for conceptualising the JSVP from a new perspective. Thus, through a systematic literature review, eight factors that explain the conceptual domain of the JSVP are discovered and, on the basis of them, eight propositions are made in developing a measurement scale for the JSVP. This study discusses the theoretical and practical implications of the proposed factor-based structure for the JSVP. Subsequently, the limitations in the present research are discussed, and suggestions are made for future research concerning JSVP constructs.
Open Access
Can visual impairment impact your income potential?
(PLoS ONE, 2023-04-20) Wickramaarachchi, C; Jayathilaka, R; Suraweera, T; Thelijjagoda, S; Kollure, L
People’s quality of life (QOL) has been disrupted globally in the wake of the pandemic in recent times. This was mainly due to global economic crises fuelled by the coronavirus (COVID– 19) and other related factors. Sri Lanka, too, was facing major social and economic constraints in the period 2021–2022. Thus, all communities islandwide have been economically disturbed. Among others, people with Visual Impairment and Blindness (VIB) have been pushed to severely disadvantageous positions, financially and otherwise. A sample from three geographical locations in Sri Lanka; and eleven individuals representing diverse cadres in Sri Lankan society were purposively selected for the study based on the existence of the majority of the visually impaired community using a mixed approach. Descriptive statistics were utilised to analyse the identified socio-economic characteristics. Ordered probit regression was employed to determine the mediating effect of socio-economic status on income levels. Word Cloud illustrates the factors affecting the QOL. Most severely impaired individuals are more likely to earn a lower rate of income. This situation has degraded their lives and poor QOL. Participants’ responses elucidate that facilities, resources, education, opportunities, income, employment, and government activities would enhance their QOL. The study adds value to society by recognising VIB people, helping them gain financial independence and strengthening them without marginalising the impaired community. The proposed policies in this study would be valuable for these social groups to address their wealth concerns.
Open Access
Challenges of Mobility and Access to Transport for People with Visual Impairment and Blindness: An Exploratory Study
(Emerald Publishing, 2022-12-01) Suraweera, T; Bandara, S; WickramaArachchi, C; Perera, D
The ability to move around to get things done to fulfill one’s wants, and needs is critical for independent living, irrespective of his or her age or existence of impairments or disabilities. Safe and efficient mobility with confidence is widely recognized as influential factors of the positive wellbeing of persons with visual impairment and blindness. Inability to confidently move around pushes persons with visual impairment and blindness to a risk of social exclusion. Even though research into this area is significant, such research in developing countries like Sri Lanka is quite limited. While aiming at bridging the said knowledge gap, this research intended to explore challenges and obstacles of mobility and transport experienced by people with visual impairment and blindness in Sri Lanka. This study adopted a qualitative method through in-depth interviews. Fifteen persons with visual impairment and blindness were purposively chosen to represent a wide range of social and economic boundaries and interviewed in May-August 2021. With the prior consent of respondents, interviews were recorded and transcribed. The interview transcriptions were analyzed using a thematic approach. Data triangulation was done through focus group discussion and observation methods. The results confirmed that persons with visual impairment and blindness confronted challenges and obstacles in mobility and transport that is discussed in six themes: deficient infrastructure, access to information, improper attitudes of sighted persons, service provider issues, personal attitudes, and support. The findings urge the importance of implementing the existing provisions while introducing relevant public policies and social awareness.
Open Access
Variation of Microwave Leakage Exposure Levels Close to a Microwave Oven with Load, Container Type and Time.
(SLIIT, 2022-02-11) Suraweera, T; Jayaratne, C
Nowadays people are living in a rush world and most people seek efficient methods to complete their day to day work with less time. Microwave ovens are the best option to cook foods as well as for reheating precooked foods. Microwave ovens use radio frequency (RF) electromagnetic waves around the frequency 2.4 GHz for cooking and reheating food by dielectric heating or high frequency heating. Many scientific reports have been confirmed that eating microwave food is not a risk, because radio waves cannot ionize foods. But the problem is exposing to the leakage microwave radiation when operating the oven. Authorized bodies such as International Commission on Non-Ionizing Radiation Protection (ICNIRP) as well as Federal Communications Commission (FCC) have been published limitations for exposure to these RF waves. The limited plane wave power density for a microwave oven is 50 W/m2 at any point 5 cm away from the oven. Over exposure to these RF waves with high plane wave power densities may lead to health effects such as cataracts in the eyes, infertility, and brain tumors. In this study, leakage microwave plane wave power densities were evaluated by using spectran HF6065 spectrum analyzer under three situations with newly brought microwave oven. In the first study variation of RF levels at 40 cm from the front glass of the microwave oven with the load (water) were evaluated, In the second study RF levels around the microwave oven for same load kept in plastic and ceramic containers were evaluated separately and, in the third study, time variation of the power density at a distance 40 cm in front of the microwave oven for a duration of 180 s was evaluated. Results in the first study show that negative correlation (r=-0.6136) between the load and leakage microwave emission around the oven as well as maximum average plane wave power density of (512.78 ± 0.01) mW/m2 with no load inside the oven and maximum average plane wave power density with the load is 195.06 ± 0.01 mW/m2 with 100 ± 1 g of load kept in a plastic container with mass 68 g. For the second study considerably low RF levels were recorded when using the ceramic container than plastic container. Results for the third study show that microwave emission around the oven is fluctuating rapidly with time and it can be varied between 0.01 mW/m2 and 108.48 mW/m2 . Evaluated maximum RF plane wave power density among all three studies was (677.84 ± 0.01 mW/m2 ) and this value is 1.35 % of maximum permissible leakage level for a microwave oven as well as it is found that frequency of the microwave radiation is also varying when it is operating. However, authors would like to request not to stay close to a microwave oven when it is operating, especially children and pregnant women because they are more sensitive for non-ionizing RF radiations.
Open Access
CHALLENGES & PROSPECTS FOR ECONOMIC EMPOWERMENT OF PERSONS WITH VISUAL IMPAIRMENT & BLINDNESS ENGAGED IN SELFEMPLOYED VENTURES
(y Sri Lanka Forum of University Economists (SLFUE) Uva Wellassa University of Sri Lanka, 2021-01-21) Dunuwila, V. R; Suraweera, T; Jayathilaka, R; Thelijjagoda, S
People with disabilities experience numerous barriers with regard to securing employment, thus, they are more likely to work for low wages, informally and precariously. Besides, some of them are entitled for a disability benefit which is often inadequate to cover their daily expenses (Global Disability Summit, 2018). Economic empowerment can be defined as a way of ensuring income security for people with disabilities to achieve income security, advance economically, enrich themselves through empowerment and autonomy to make economic decisions within and outside the home (Global Disability Summit, 2018). Self-employment is perceived as a viable option for empowering disabled individuals that facilitates achieving a balance between disability status and work life (Kitching, 2014; Pagán, 2009; Adams, et al., 2019). Pagán (2009) indicated the presence of a strong relationship between disability status and self-employment; thus, selfemployment rates were higher among people with disabilities compared to those who report no limitation in daily activities (Kitching, 2014; Pagán, 2009; Adams, et al., 2019). The Global Disability Summit (2018) indicates that obstacles to economic empowerment experienced by people with disabilities can vary depending on the nature of an individual’s impairment, their gender, socioeconomic status and the context in which they live. Adams, et al., (2019) further indicate that the decision to enter into self-employment for most disabled individuals were influenced by the ‘push’ factors such as lack of alternative employment opportunities, rather than the ‘pull’ factors such as passion or interest in a particular field, or the desire to work for themselves (Kitching, 2014; Adams, et al., 2019). Past research reveals that the disabled self-employed face significant problems in sustaining the business due to reasons such as consumer discrimination, inadequate training, poor access to information, absence of appropriate business support and challenges in accessing finance (Adams, et al., 2019; Kitching, 2014; Pagán, 2009; Vaziri, Schreiber, Wieching, & Wulf, 2014)
Open Access
IN A QUEST FOR ‘WHAT THEY VALUE THE MOST’: PERSONS WITH VISUAL IMPAIRMENT AND BLINDNESS IN A CLUSTERED COMMUNITY IN SRI LANKA
(y Sri Lanka Forum of University Economists (SLFUE) Uva Wellassa University of Sri Lanka, 2021-01-21) Attale, D.S.C; Sudusinghe, D. R; Abeyrathna, H. A. P. I; De Seram, S. S. H; Jayathilaka, R; Suraweera, T; Thelijjagoda, S
The community engagement and the resource requirements of a community would vary on the nature of the community. If one would broadly recognize persons with visual impairment and blindness (VI&B) as community per se, it is expected that their needs, resource requirements and the activities they engagedin would differ from the rest of the population in general. This research aims to explore the nature of resource requirements and the activities commonly engaged-in by a ‘community’ of persons with VI&B, in a ‘clustered village’ in Southern Sri Lanka. Though sociologists interpret the term community in various ways, this study adopts the definition of Sylvia Dale, (1990); “Community is a body of people living in the same locality…Alternatively, a sense of identity and belonging shared among people living in the same locality, Also, the set of social relations found in a particular bounded area” (Dale, 1990, p. 562). Accordingly, the ‘Siyanethugama’ 55th model village was developed by the National Housing Authority in 2018, where 27 families having at least one person in each with VI&B, would very well be embraced as a “community”. Each family is allocated a 10 perch land with a basic one-bedroom house. Visual impairment or vision impairment, is the degree of reduced vision level from low vision to total blindness that impedes a person’s ability to function at certain or many tasks. As at 2018, among the Sri Lankan population of 21 million (worldometer, 2020), considerably 1.7% of individuals carry a visual impairment (Devapriya, 2020). A study is yet be performed in the Sri Lankan context based on the theme “Resources and activities that VI&B people value the most in their lives”. The preference of an individual’s resources and activities may vary according to their demographic characteristics. This empirical study focuses on deriving what types of resources and activities the VI&B people ascertain the most in their lives, and how the demographic characteristics affect their lives based on their visual impairment type. This study contributes to draw attention from the government towards the VI&B people and types of actions the government can take, to improve the lifestyle of VI&B people in Sri Lanka.
Embargo
Relationship between Socioeconomic and Demographic Characteristics of Persons with Visual Impairment and Blindness to their Levels of Vision: evidence from two geographical areas in Sri Lanka
(Sri Lanka Journals Online, 2022-02) Wickramarachchi, C; Jayathilaka, R; Serasinghe, W; Kollure, L; Kollure, T; Suraweera, T; Thelijjagoda, S
This paper examined the extent to which socio-economic and demographic characteristics are related to the levels of vision of persons with visual impairment and blindness. A mixed method approach was employed in this study. Data collection was conducted in Siyanethugama Village in Hambanthota district and Polpithigama Divisional Secretariat in Kurunegala district in Sri Lanka. The study deployed convenient and purposive sampling techniques. Information was gathered through questionnaires and personal interviews. Overall, results revealed that level of vision vary with several socio-economic characteristics. Age and education were not related to the levels of vision in the Polpithigama region whereas in the Hambanthota region a significant relationship between age and education with levels of vision was observed. Income was not related to the level of vision. Participants’ views and opinions of resources, opportunities, income, employment, and government activities were found to be the driving forces of quality of life related to vision. The study concluded that age and education need to be considered in improving quality of life related to vision and further investigations are needed to determine the relationships between levels of vision and socio-demographic characteristics and to explore perceptions related to vision impairments.
Open Access
Effects of Seven Domains of Personal Well-being on Quality of Life of Persons with Visual Impairment and Blindness in Sri Lanka
(researchgate.net, 2021-08) Dunuwila, V. R; Jayathilaka, R; Attale, D; De Seram, H; Sudusinghe, D; Abeyrathna, I; Suraweera, T; Thelijjagoda, S
The quality of life (QoL) of people with disabilities is of interest to social researchers in most parts of the World. However, this is an area somewhat overlooked by society in general. It is obvious that the lifestyle of a person with visual disabilities may differ significantly compared to those who see the World with their own eyes. Additionally, persons with visual disabilities are known to experience specific challenges, unlike people who are sighted. Hence, the main objective of this study is to examine the extent to which the seven domains of the Personal Wellbeing Index (PWI), namely, the standard of living, achievements in life, community connectedness, close relationships, health, safety, and future security, impact the QoL of people with visual impairment and blindness. The sample of 64 participants, 34 blind and 30 visually impaired individuals, were obtained via purposive sampling from one among 25 districts, Hambanthota, in Southern Sri Lanka. Data collection was carried out through a tailored questionnaire, employed as a telephone survey, and through face-to-face interviews. The relationship between the seven domains of PWI and QoL was analyzed through standard statistical methods using SPSS. Further, demographic factors such as age and gender were also examined in the analysis. Results show that the majority of persons with visual impairment and blindness, in particular those in the age group 40-59, are satisfied with the seven domains of PWI. However, the PWI domain of ‘future of security is of significant concern to this community. The results also assert that the ‘community connectedness’ and ‘achievements in life’ are two areas that need to be looked into by the policymakers for sustained QoL among persons with visual impairment and blindness. Authors acknowledge contribution of the World Bank assisted AHEAD Research project of SLIIT Business School for support extended in relation to data collection and guidance.

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