|Year : 2016 | Volume
| Issue : 1 | Page : 145-149
Barriers to cataract surgery in Africa: A systematic review
Shaheer Aboobaker1, Paul Courtright2
1 Division of Ophthalmology, Groote Schuur Hospital, University of Cape Town, South Africa
2 Division of Ophthalmology; Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology, Groote Schuur Hospital, University of Cape Town, South Africa
|Date of Web Publication||4-Jan-2016|
25 Protea Road, Claremont, Cape Town 7708
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Cataract remains the leading cause of blindness in Africa. We performed a systematic literature search of articles reporting barriers to cataract surgery in Africa. PubMed and Google Scholar databases were searched with the terms "barriers, cataract, Africa, cataract surgery, cataract surgical coverage (CSC), and rapid assessment of avoidable blindness (RAAB)." The review covered from 1999 to 2014. In RAAB studies, barriers related to awareness and access were more commonly reported than acceptance. Other type of studies reported cost as the most common barrier. Some qualitative studies tended to report community and family dynamics as barriers to cataract surgery. CSC was lower in females in 88.2% of the studies. The variability in outcomes of studies of barriers to cataract surgery could be due to context and the type of data collection. It is likely that qualitative data will provide a deeper understanding of the complex social, family, community, financial and gender issues relating to barriers to uptake of cataract surgery in Africa.
Keywords: Africa, Barriers, Cataract, Gender
|How to cite this article:|
Aboobaker S, Courtright P. Barriers to cataract surgery in Africa: A systematic review. Middle East Afr J Ophthalmol 2016;23:145-9
|How to cite this URL:|
Aboobaker S, Courtright P. Barriers to cataract surgery in Africa: A systematic review. Middle East Afr J Ophthalmol [serial online] 2016 [cited 2019 Jan 19];23:145-9. Available from: http://www.meajo.org/text.asp?2016/23/1/145/164615
| Introduction|| |
According to the World Health Organization (WHO), 39 million people worldwide are blind and cataracts remain the leading cause of blindness in low and middle incomes countries. The WHO and the International Agency for the prevention of blindness launched the VISION 2020: Right to Sight initiative in 1999 to reduce the burden of avoidable blindness. One of the major targets was cataracts.
Subsequently, many surveys have been published highlighting the magnitude of cataract related vision loss in Africa. However, Africa remains the continent with the lowest cataract surgical rate (CSR), defined as the number of cataract surgeries done per million population per year. There has been considerable research on the barriers to use of existing cataract surgical services in Africa. In this review of the literature, we evaluate the barriers to cataract surgery in Africa to identify key themes. This information may aid programs aiming to increase the uptake of cataract surgical services.
| Method|| |
A systematic review of the available literature was performed using PubMed and Google Scholar. Search terms included: “Barriers, cataract, Africa, cataract surgery, cataract surgical coverage (CSC), and Rapid Assessment of Avoidable Blindness (RAAB).” The search was limited to articles published between 1999 and April 2014.
The references in the articles were also reviewed to identify other articles that may not have been identified by the search terms.
In reporting on the barriers in the studies, we attempted to use the cataract patient's perspective; a patient must first know that there is a problem, what the problem is, and what to do about the problem (knowledge and awareness); once aware of the problem the patient needs to address the logistical steps needed to use the service. This includes distance (and transport) to the service, fees to use the service, requiring an escort to use the service, and being advised by the service providers when it is appropriate to use the service (or to wait). In general, the eye care service has to make the service accessible to the population by reducing transportation issues, setting reasonable prices for the population, and to offer the service as patients require. The final step is to ensure that the patient and the family will accept the service. Poor acceptance can be due to fear of surgery (some of which may be due to poor quality service and some due to incorrect assumptions regarding surgery), or no perceived need, or to a perception that advanced age means that surgery is unnecessary, or that blindness is “God's will”.
Finally, as female gender is a recognized risk factor for lower utilization of cataract surgical services, all quantitative surveys of CSC were reviewed for any gender differences.
| Results|| |
In total, 86 articles were identified of which 12 were RAAB studies.,,,,,,,,,,, In addition, there were 10 quantitative studies ,,,,,,,,, and 5 qualitative studies ,,,, of barriers to utilizing cataract surgical services.
Although the RAAB survey includes questions on barriers to cataract surgery not all publications report these findings. Among the 12 published RAAB surveys ,,,,,,,,,,,, data on barriers to cataract surgery were only available in 9 articles.,,,,,,,, Among these publications ,,,, the outcomes varied considerably [Table 1]. However, variables related to awareness and access were more commonly reported than variables related to acceptance.,,,,,,,,
|Table 1: Findings from RAABs: Percentage of patients who did not undergo cataract surgery reporting the reason for not accepting surgery|
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The other (non-RAAB) surveys of barriers were performed among different population groups, and not all were population-based surveys [Graph 1].,,,,,,,,, Although there was considerable variability in the findings, cost (both direct and indirect) was the most commonly reported barrier in 6 of 10 studies.,,,,,
Finally, there were five qualitative studies of barriers [Table 2].,,,, These studies ,,,, were performed in Tanzania and Kenya. These studies ,,,, suggest that complex emotional and social interactions exists within the family network that influence the mobilization of financial resources to use cataract surgery. Elderly patients place the financial needs of their children ahead of their own and do not wish to be considered a burden. The uptake of surgery was also affected by the perceived need for surgery. Males had a higher perceived need than females who tended to suffer their disability in silence. Despite the difficulty in accessing funds, these studies  found that patients were willing to pay for cataract surgery. This willingness increased when knowledge of the actual cost of surgery and trust in that service improved. Cost was found to be a convenient explanation that is unchallenged by health care workers when asked about reasons for not undergoing cataract surgery. The Kenyan study  found that patients with poorer visual acuity were only slightly more likely to accept cataract surgery while the lower quality of life scores were consistently associated with increased uptake of cataract surgery.
|Table 2: Findings from qualitative studies of barriers to cataract surgery|
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There were 17 surveys ,,,,,,,,,,,,,,,, providing information on CSC and findings for both males and females. In 15 (88.2%) of these surveys, the CSC among males was higher than in females; for all surveys ,,,,,,,,,,,,,,,, the average difference between male CSC and female CSC was 9.42%.
| Discussion|| |
To adequately perform this systematic literature review, four sets of publication types required collection and compilation. Each type of publication offers different perspectives on the topic of barriers to cataract surgery in Africa. Review of the different perspectives enhances the discussion on barriers to cataract surgery in these and other settings. The variable findings in this review may be due to a number of factors, including the context in which the study was undertaken. The type of study may also have contributed to the variable findings.
Rapid assessment of avoidable blindness has the advantage of being standardized and population-based; a significant disadvantage, however, is the fidelity of the findings. In the RAAB, the question on barriers is asked of all people with a cataract causing vision loss of 6/18 or worse in one or both eyes. There is good evidence  that, because the question “Why have you not had surgery?” Can be very sensitive people may provide an answer that will not cause embarrassment or be challenged by the interviewer (generally an eye care provider). In this case obtaining an accurate response may be quite difficult. This appears to be particularly true with the response to “cost of surgery”. For example, researchers in Tanzania found that, among those reporting cost as the primary barrier, when cost was removed as a barrier over 77% of patients still refused surgery.
Rapid assessment of avoidable blindness studies combine the findings from people with bilateral and unilateral cataract and those with blinding cataract (<3/60) with those with a visually significant cataract (6/24–6/60). However, this weakens the interpretation of the findings, and it is likely that the barriers are different according to vision and laterality.
The second set of data on barriers were from a mix of population-based surveys or institution based surveys. Collection of data varies in these settings, and some of the same strengths and weaknesses found in RAAB studies are evident in other population-based surveys.
Due to the sensitive nature of questioning people about reasons they have not undergone surgery, qualitative data collection is likely to be the most valuable approach. Current qualitative literature on the topic remains limited to a few settings. However, findings from these settings may not be applicable to other regions in Africa.
Gender differences in CSC provide strong evidence of continuing gender-specific barriers faced by females in most African countries. This work has been summarized globally, in 2002 and in 2008. Similar to global findings, data from Africa indicate that in almost 90% of surveys on both genders report a lower CSC for females. Gender inequity was also reflected in the qualitative studies, which may be due to gender-defined social roles within the community. Females may have less access to money and the perceived need lower for improved vision due to their roles in the household and community. According to a study  in Tanzania, males express their need for better sight more strongly than females. Females tended to hide their disability and suffer due to fear of being seen as a burden and they also felt shame in asking their children for support. Some elderly cataract patients may see more benefit in ignoring their need for sight compared being perceived as “ill” to mobilize resources to negotiate support for surgery that may take weeks to years.
All of these studies illustrate that barriers exist both in the community and within the health care system. A study from South Africa evaluated the causes of the lack of commitment from a hospital staff and management to increase CSR. The factors included: insufficient operating theatre time, nursing staff unfamiliar with high volume cataract surgery and surgeons performing nonsurgical related work (screening, refractions, administration). Similar health system based issues were reported in Ethiopia  and some studies  have highlighted the changes made to the health system and the subsequent increase in CSR. The assumption in these settings is that the health system changes addressed specific barriers that were noted through formal research.,
While “cost” is a commonly reported barrier in many surveys, evidence suggests that making surgery free-of-charge does not significantly increase use of cataract surgery in Africa., Included in the definition of “cost” is the fee charged for surgery (direct cost) and the indirect costs needed to use the service (e.g., transport, escort, meals and accommodation). Without substantial government investment in cataract surgery, offering free cataract surgical services in Africa is not sustainable. Different fee schedules have been adopted in some hospitals, critically, base fees need to be set within the capacity of the population to pay. In many settings this calculation is based on 80% of households and waiver systems are used for those too poor to pay at all. However, the cost may be hiding a deeper and more complex issue. While the capacity to pay can be calculated, the role of the family in the decision-making process and the willingness to pay can be more difficult to assess. In 2005 when counseled on the actual cost of surgery, 20% of patients, who initially stated price as a reason for not having surgery, subsequently returned with funds. These funds were obtained from family members and the willingness of patients to pay for cataract surgery is linked to the highest perceived amount of financial support elderly patients feel they can ask from their children and relatives.
Reducing direct costs may be achieved by increasing productivity and by implementing a tiered payment system to subsidize the poor. Some centers have attempted to package direct and indirect costs (including transport and medication) into one all-encompassing fee. The indirect costs may be reduced by “outreach teams” going into the communities and screening and transporting a busload of cataract patients back to the base hospital for surgery. These outreach teams are closely linked to the hospital and provide qualified staff to make good clinical decisions in the field to prevent unnecessary referrals to the hospital. They provide a “patient friendly” one stop service and the site of the camp is chosen based on population distribution, is well advertised and occurs at regular intervals.
Although none of the studies directly addressed the question of trust in achieving a good outcome, it likely remains a significant barrier given the often poor cataract surgical outcomes reported from population-based studies. Poor outcomes create distrust in the service and fear of surgery. These legitimate concerns could also harm cost recovery efforts as the perceived value of cataract surgery would be reduced. Bias in reporting likely accounts for the lack of information on the impact of poor outcomes cataract surgery acceptance rates.
In summary, while there are numerous studies of barriers to use of cataract surgical services, the tendency to tackle the question from a quantitative perspective may not be ideal. Quantitative data may not reveal the true issues preventing the uptake of surgery, either due to a lack of willingness of respondents to criticize health providers or to embarrass themselves or others. To this end, qualitative work likely presents a better understanding of some of the complex social, family, financial, community and gender interactions in these settings. Further studies are required to understand the role of poor outcomes and uptake of cataract surgery and to understand how families make decisions regarding seeking care. The high CSC found in some settings in South Africa, Libya, and Kenya suggest that many barriers to surgery can be overcome. There is no single approach and multi-system and long-term efforts are required.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
| References|| |
Cockburn N, Steven D, Lecuona K, Joubert F, Rogers G, Cook C, et al.
Prevalence, causes and socio-economic determinants of vision loss in Cape Town, South Africa. PLoS One 2012;7:e30718.
Rabiu MM, Jenf M, Fituri S, Choudhury A, Agbabiaka I, Mousa A. Prevalence and causes of visual impairment and blindness, cataract surgical coverage and outcomes of cataract surgery in Libya. Ophthalmic Epidemiol 2013;20:26-32.
Oye JE, Kuper H. Prevalence and causes of blindness and visual impairment in Limbe urban area, South West Province, Cameroon. Br J Ophthalmol 2007;91:1435-9.
Oye JE, Kuper H, Dineen B, Befidi-Mengue R, Foster A. Prevalence and causes of blindness and visual impairment in Muyuka: A rural health district in South West Province, Cameroon. Br J Ophthalmol 2006;90:538-42.
Müller A, Zerom M, Limburg H, Ghebrat Y, Meresie G, Fessahazion K, et al.
Results of a rapid assessment of avoidable blindness (RAAB) in Eritrea. Ophthalmic Epidemiol 2011;18:103-8.
Mathenge W, Kuper H, Limburg H, Polack S, Onyango O, Nyaga G, et al.
Rapid assessment of avoidable blindness in Nakuru district, Kenya. Ophthalmology 2007;114:599-605.
Kalua K, Lindfield R, Mtupanyama M, Mtumodzi D, Msiska V. Findings from a rapid assessment of avoidable blindness (RAAB) in Southern Malawi. PLoS One 2011;6:e19226.
Mathenge W, Nkurikiye J, Limburg H, Kuper H. Rapid assessment of avoidable blindness in Western Rwanda: Blindness in a postconflict setting. PLoS Med 2007;4:e217.
Lindfield R, Griffiths U, Bozzani F, Mumba M, Munsanje J. A rapid assessment of avoidable blindness in Southern Zambia. PLoS One 2012;7:e38483.
Habiyakire C, Kabona G, Courtright P, Lewallen S. Rapid assessment of avoidable blindness and cataract surgical services in kilimanjaro region, Tanzania. Ophthalmic Epidemiol 2010;17:90-4.
Kandeke L, Mathenge W, Giramahoro C, Undendere FP, Ruhagaze P, Habiyakare C, et al.
Rapid assessment of avoidable blindness in two northern provinces of Burundi without eye services. Ophthalmic Epidemiol 2012;19:211-5.
Randrianaivo JB, Anholt RM, Tendrisoa DL, Margiano NJ, Courtright P, Lewallen S. Blindness and cataract surgical services in Atsinanana region, Madagascar. Middle East Afr J Ophthalmol 2014;21:153-7.
Mpyet C, Dineen BP, Solomon AW. Cataract surgical coverage and barriers to uptake of cataract surgery in leprosy villages of north eastern Nigeria. Br J Ophthalmol 2005;89:936-8.
Oluleye TS. Cataract blindness and barriers to cataract surgical intervention in three rural communities of Oyo state, Nigeria. Niger J Med 2004;13:156-60.
Odugbo OP, Mpyet CD, Chiroma MR, Aboje AO. Cataract blindness, surgical coverage, outcome, and barriers to uptake of cataract services in Plateau State, Nigeria. Middle East Afr J Ophthalmol 2012;19:282-8.
Cook C, Kluever H, Mabena L, Limburg H. Rapid assessment of cataract at pension pay points in South Africa. Br J Ophthalmol 2007;91:867-8.
Mehari ZA, Zewedu RT, Gulilat FB. Barriers to cataract surgical uptake in central ethiopia. Middle East Afr J Ophthalmol 2013;20:229-33.
Melese M, Alemayehu W, Friedlander E, Courtright P. Indirect costs associated with accessing eye care services as a barrier to service use in Ethiopia. Trop Med Int Health 2004;9:426-31.
Ndegwa LK, Karimurio J, Okelo RO, Adala HS. Barriers to utilization of eye care services in Kibera slums of Nairobi. East Afr Med J 2005;82:506-8.
Rotchford AP, Rotchford KM, Mthethwa LP, Johnson GJ. Reasons for poor cataract surgery uptake – A qualitative study in rural South Africa. Trop Med Int Health 2002;7:288-92.
Bekibele CO, Murthy GV. Barriers to cataract surgery of persons screened at camps in Ibadan, Nigeria. Afr J Med Sci 2012;41:257-64.
Briesen S, Geneau R, Roberts H, Opiyo J, Courtright P. Understanding why patients with cataract refuse free surgery: The influence of rumours in Kenya. Trop Med Int Health 2010;15:534-9.
Geneau R, Massae P, Courtright P, Lewallen S. Using qualitative methods to understand the determinants of patients' willingness to pay for cataract surgery: A study in Tanzania. Soc Sci Med 2008;66:558-68.
Kessy JP, Lewallen S. Poverty as a barrier to accessing cataract surgery: A study from Tanzania. Br J Ophthalmol 2007;91:1114-6.
Geneau R, Lewallen S, Bronsard A, Paul I, Courtright P. The social and family dynamics behind the uptake of cataract surgery: Findings from Kilimanjaro region, Tanzania. Br J Ophthalmol 2005;89:1399-402.
Briesen S, Roberts H, Ilako D, Karimurio J, Courtright P. Are blind people more likely to accept free cataract surgery? A study of vision-related quality of life and visual acuity in Kenya. Ophthal Epidemiol 2010;17:41-9.
Rabiu MM. Cataract blindness and barriers to uptake of cataract surgery in a rural community of northern Nigeria. Br J Ophthalmol 2001;85:776-80.
Kolawole OU, Ashaye AO, Mahmoud AO, Adeoti CO. Cataract blindness in Osun state, Nigeria: Results of a survey. Middle East Afr J Ophthalmol 2012;19364-71.
Rabiu MM, Muhammed N. Rapid assessment of cataract surgical services in Birnin-Kebbi local government area of Kebbi state, Nigeria. Ophthal Epidemiol 2008;15:359-65.
Muhammed N, Mansur RM, Dantani AM, Elhassan E, Isiyaku S. Prevalence and causes of blindness and visual impairment in Sokoto state, Nigeria: Baseline data for vision 2020: The right to sight eye care programme. Middle East Afr J Ophthalmol 2011;18:123-8.
Abubaker T, Gudlavalleti MV, Sivasubramaniam S, Gilbert CE, Abdull MM, Imam AU. Coverage of hospital-based cataract surgery and barriers to the uptake of surgery among cataract blind persons in Nigeria: The Nigeria national blindness and visual impairment survey. Ophthal Epidemiol 2012;19:58-66.
Lewallen S, Courtright P. Gender and use of cataract surgical services in developing countries. Bull World Health Organ 2002;80:300-3.
Lewallen S, Mousa A, Bassett K, Courtright P. Cataract surgical coverage remains lower in females. Br J Ophthalmol 2009;93:295-8.
Mganga H, Lewallen S, Courtright P. Overcoming gender inequity in prevention of blindness and visual impairment in Africa. Middle East Afr J Ophthalmol 2011;18:98-101.
Lecuona K, Cook C. South Africa's cataract surgery rates: Why are we not meeting our targets? S Afr Med J 2011;101:510-2.
Lewallen S, Roberts H, Hall A, Onyange R, Temba M, Banzi J, Courtright P. Increasing cataract surgery to meet Vision 2020 targets; experience from two rural programmes in East Africa. Br J Ophthalmol 2005;89:1237-40.
[Table 1], [Table 2]