Evaluating Public Awareness of Glaucoma and Their Associated Risk Factors in Obio/Akpor Local Government Area, Rivers State

Main Article Content

Onwunali Juliet Chinwendu
Imarenezor Edobor Peter Kenneth
Efere Y. Samson

Abstract

Glaucoma is a progressive eye disease and a leading cause of irreversible blindness worldwide, often developing without early symptoms, which makes timely detection and treatment crucial for reducing vision loss. This study assessed the level of glaucoma awareness and knowledge of its risk factors among adults in Obio/Akpor Local Government Area, Rivers State, Nigeria, and explored barriers to accessing eye care. A cross-sectional survey was conducted among 440 consenting adults aged 18 years and above using a standardized questionnaire to collect socio-demographic characteristics, awareness of glaucoma, knowledge of its severity and risk factors, and willingness to seek eye care. The sample comprised 60.9% females and 39.1% males with diverse employment and educational backgrounds. While 85.7% of respondents had heard of glaucoma and many recognized it as a cause of blindness, only 26.6% knew it could be asymptomatic, and detailed knowledge of its severity profile and risk factors was limited; the main sources of information were health workers (34%), schools/lectures (24.5%), and radio/television (18.9%). A large proportion expressed willingness to undergo free eye screening, yet lack of health insurance emerged as a notable barrier to accessing timely care. These findings indicate that general awareness of glaucoma in the community is not matched by adequate understanding of its silent progression and risk factors, potentially delaying care-seeking behavior. The study concludes that awareness campaigns alone are insufficient and that comprehensive public health education, stronger collaboration between healthcare providers and community organizations, and improved access to routine vision screening are essential to promote early detection and effective management of glaucoma, particularly among high-risk populations in Obio/Akpor and similar settings.

Article Details

How to Cite
Chinwendu, O. J., Kenneth, I. E. P., & Samson, E. Y. (2026). Evaluating Public Awareness of Glaucoma and Their Associated Risk Factors in Obio/Akpor Local Government Area, Rivers State. African Journal of Medicine, Surgery and Public Health Research, 3(1), 195-216. https://doi.org/10.58578/ajmsphr.v3i1.9087

References

Abdull, M. M., Sivasubramaniam, S., Murthy, G. V. S., Gilbert, C. E., Abubakar, T., Ezelum, C., & Rabiu, M. M. (2009). Causes of blindness and visual impairment in Nigeria: The Nigeria national blindness and visual impairment survey. Investigative Ophthalmology & Visual Science, 50(9), 4114–4120. https://doi.org/10.1167/iovs.09-3507

Adegbehingbe, B. O., Akinye, A. M., & Ajayi, B. G. K. (2022). Community-based screening and awareness of glaucoma in South-Western Nigeria: Implications for eye health promotion. Nigerian Journal of Ophthalmology, 30(1), 15–22.

Advanced Glaucoma Intervention Study (AGIS) Investigators. (2000). The Advanced Glaucoma Intervention Study (AGIS): 7. The relationship between control of intraocular pressure and visual field deterioration. American Journal of Ophthalmology, 130(4), 429–440. https://doi.org/10.1016/S0002-9394(00)00538-9

Agarwal, R., Gupta, S., & Agarwal, P. (2022). Advances in glaucoma management: Current perspectives and future directions. Indian Journal of Ophthalmology, 70(5), 1253–1262.

Allison, K., Patel, D., & Alabi, O. (2020). Epidemiology of glaucoma: The past, present, and predictions for the future. Cureus, 12(11), e11686. https://doi.org/10.7759/cureus.11686

Aspberg, J., Heijl, A., & Bengtsson, B. (2021). Screening for open-angle glaucoma and its effect on blindness. American Journal of Ophthalmology, 228, 106–116. https://doi.org/10.1016/j.ajo.2021.03.030

Buys, E. S., Potter, J. R., Pasquale, L. R., & Ksander, B. R. (2018). Regulation of intraocular pressure by soluble guanylate cyclase in mice. Investigative Ophthalmology & Visual Science, 59(3), 1239–1246. https://doi.org/10.1167/iovs.17-23452

Chibueze, L. M. (2015). Glaucoma in Nigeria: Factors influencing late presentation of the disease (Master’s thesis). Royal Tropical Institute/Vrije Universiteit Amsterdam.

Dandona, L., & Dandona, R. (2019). Blindness in the developing world: The way forward. Indian Journal of Ophthalmology, 67(6), 777–780.

Ehrlich, J. R., Burke-Conte, Z., Wittenborn, J. S., et al. (2024). Prevalence of glaucoma among US adults in 2022. JAMA Ophthalmology, 142(11), 1046–1053. https://doi.org/10.1001/jamaophthalmol.2024.3884

Ehule, H. W., Davies, O. E., Nwaogburu, L., & Ogele, E. P. (2022). Good governance and rural development in local government areas in Rivers State, Nigeria: A study of Obio/Akpor local government area, 2010–2020. Journal of Public Administration and Social Welfare Research, 7(1), 35–49.

Enock, M. E., Adepoju, F. G., & Onwubiko, S. N. (2019). Awareness and knowledge of glaucoma among adults in Ibadan, Nigeria. Annals of Ibadan Postgraduate Medicine, 17(2), 106–113.

European Glaucoma Society. (2020). European Glaucoma Society guidelines (5th ed.): Terminology and guidelines for glaucoma [PDF]. https://www.oogheelkunde.org/wp-content/uploads/2022/05/EGS_Guidelines_5_English-1.pdf

Ezenwa, A. C., & Nwosu, S. N. (2025). Awareness and knowledge of glaucoma among secondary school teachers in Onitsha, Nigeria. The Nigerian Health Journal, 25(1), 380–385. https://doi.org/10.71637/tnhj.v25i1.995

Ezinne, N. E., Ojukwu, C. S., Ekemiri, K. K., Akano, O. F., Ekure, E., & Osuagwu, U. L. (2021). Prevalence and clinical profile of glaucoma patients in rural Nigeria—A hospital-based study. PLOS ONE, 16(12), e0260965. https://doi.org/10.1371/journal.pone.0260965

Flaxman, S. R., Bourne, R. R. A., Resnikoff, S., Ackland, P., Braithwaite, T., & Cicinelli, M. V. (2017). Global causes of blindness and distance vision impairment 1990–2020: A systematic review and meta-analysis. The Lancet Global Health, 5(12), e1221–e1234. https://doi.org/10.1016/S2214-109X(17)30393-5

Halkiadakis, I., Konstantopoulou, K., Tzimis, V., Papadopoulos, N., Chatzistefanou, K., & Markomichelakis, N. N. (2024). Update on diagnosis and treatment of uveitic glaucoma. Journal of Clinical Medicine, 13(5), 1185. https://doi.org/10.3390/jcm13051185

International Agency for the Prevention of Blindness (IAPB). (2020). Vision atlas: Key facts about avoidable blindness. https://www.iapb.org

International Centre for Eye Health. (2014). The Nigerian national blindness and visual impairment survey. London School of Hygiene and Tropical Medicine. https://iceh.lshtm.ac.uk/files/2014/04/NigeriaSurvey.pdf

Isawumi, M., & Aina, A. (2024). Awareness and knowledge of glaucoma among workers in a missionary hospital in Nigeria. Research Journal of Health Sciences, 12(3), 180–188. https://doi.org/10.4314/rejhs.v12i3.2

Khurana, A. K. (2021). Comprehensive ophthalmology (7th ed.). Jaypee Brothers Medical Publishers.

Krishnadas, R., & Ramakrishnan, R. (2001). Secondary glaucomas: The tasks ahead. Community Eye Health, 14(39), 40–42. https://pmc.ncbi.nlm.nih.gov/articles/PMC1705934/

Kyari, F., Adekoya, B., Abdull, M. M., Mohammed, A. S., & Garba, F. (2018). The current status of glaucoma and glaucoma care in sub-Saharan Africa. Asia-Pacific Journal of Ophthalmology, 7(6), 375–386. https://doi.org/10.22608/APO.2018392

Lartey, S. Y., Antwi, O., & Boadi-Kusi, S. B. (2018). Community health nurses as the first point of contact for eye care in Ghana: A pilot study. African Vision and Eye Health, 77(1), a438.

Nkumbe, H. E., & Boadi-Kusi, S. B. (2020). Misinformation and barriers to glaucoma surgery and long-term treatment adherence in Ghana and Ethiopia. Ghana Medical Journal, 54(2), 79–85. https://doi.org/10.4314/gmj.v54i2.4

Obasuyi, O. C., Yeye-Agba, O. O., & Ofuadarho, O. J. (2024). Factors limiting glaucoma care among glaucoma patients in Nigeria: A scoping review. PLOS Global Public Health, 4(1), e0002488. https://doi.org/10.1371/journal.pgph.0002488

Okeke, C. O., Onwubiko, S. N., & Chuka-Okosa, C. M. (2020). Medication adherence among glaucoma patients in southeastern Nigeria. Journal of Glaucoma, 29(4), 293–300. https://doi.org/10.1097/IJG.0000000000001462

Okoye, O., & Umeh, R. E. (2020). Barriers to uptake of glaucoma services in Enugu, Nigeria. Nigerian Journal of Clinical Practice, 23(5), 626–632.

Oluwatayo, O., & Ashaye, A. O. (2022). Awareness and knowledge of glaucoma among patients attending a tertiary hospital in Ibadan, Nigeria. Nigerian Postgraduate Medical Journal, 29(1), 48–54.

Onakoya, A. O., Kolawole, O. U., & Adepoju, F. G. (2015). Glaucoma blindness and visual impairment in an African population: Results of the Nigeria Blindness and Visual Impairment Survey. Investigative Ophthalmology & Visual Science, 56(1), 536–543.

Onyekonwu, C. L., Chime, P. E., & Okoye, O. I. (2019). Community awareness and knowledge of glaucoma in Southeast Nigeria. Nigerian Journal of Ophthalmology, 27(1), 21–27.

Ovenseri-Ogbomo, G., Amiebenomo, O., & Obahiagbon, A. E. (2017). Pattern of referrals by optometrists in Nigeria in relation to glaucoma and diabetic retinopathy. Journal of Medical and Biomedical Sciences, 5, 36–44. https://doi.org/10.4314/jmbs.v5i3.4

Sarfo, J., Mordi, P., Aggrey, E., et al. (2025). Glaucoma prevalence and treatment in sub-Saharan Africa’s elderly population: A scoping review. BMC Geriatrics, 25, 255. https://doi.org/10.1186/s12877-025-05901-0

Shan, S., Wang, Y., Wu, X., Li, J., Zhang, C., Yang, X., & Zhou, M. (2024). Global incidence and risk factors for glaucoma: A systematic review and meta-analysis of prospective studies. Journal of Global Health, 14, 04252. https://doi.org/10.7189/jogh.14.04252

Si, Z., Fan, Y., Shen, H., Wang, M., Zhao, J., & Zheng, Y. (2025). Global, regional, and national burden of low vision and blindness due to glaucoma, 1990–2021, and projections to 2050: A systematic analysis of glaucoma. International Journal of Surgery. Advance online publication. https://doi.org/10.1097/JS9.0000000000003723

Soh, Z. D., Thakur, S., Majithia, S., et al. (2021). The global extent of undetected glaucoma in adults: A systematic review and meta-analysis. Ophthalmology, 128(10), 1393–1404. https://doi.org/10.1016/j.ophtha.2021.05.008

Sun, Y., Chen, A., Zou, M., Zhang, Y., Jin, L., Li, Y., ... & Wang, N. (2022). Time trends, associations and prevalence of blindness and vision loss due to glaucoma: An analysis of observational data from the Global Burden of Disease Study 2017. BMJ Open, 12(1), e053805. https://doi.org/10.1136/bmjopen-2021-053805

Weinreb, R. N., Aung, T., & Medeiros, F. A. (2014). The pathophysiology and treatment of glaucoma. JAMA, 311(18), 1901–1911. https://doi.org/10.1001/jama.2014.3192

Wiggs, J. L., & Pasquale, L. R. (2017). Genetics of glaucoma. Human Molecular Genetics, 26(R1), R21–R27. https://doi.org/10.1093/hmg/ddx184

World Health Organization. (2023). Blindness and vision impairment: Fact sheet. https://www.who.int/news-room/fact-sheets/detail/blindness-and-visual-impairment

Wubet, G. M., & Assefa, A. A. (2021). Glaucoma and its predictors among adult patients attending ophthalmic outpatient department: A hospital-based study, North West Ethiopia. BMC Ophthalmology, 21, 400. https://doi.org/10.1186/s12886-021-02168-y

Yekunoamelak, B. Z., Ayele, F. A., Bogale, Z. M., & Worku, E. M. (2025). Proportion and associated factors of glaucoma among outpatient department at university of Gondar comprehensive specialized hospital tertiary eye care and training center, northwest Ethiopia, 2021. Frontiers in Ophthalmology, 5, 1521263. https://doi.org/10.3389/fopht.2025.1521263

Yimam, W., Anbesaw, T., Seid, M., et al. (2024). Knowledge about glaucoma among adults in Africa: A systematic review. BMC Ophthalmology, 24, 69. https://doi.org/10.1186/s12886-024-03333-9

Zhang, N., Wang, J., Li, Y., & Jiang, B. (2021). Prevalence of primary open-angle glaucoma in the last 20 years: A meta-analysis and systematic review. Scientific Reports, 11, 13762. https://doi.org/10.1038/s41598-021-92971-w


Explore Our Journals
Find the most suitable journal for your research. If this journal does not fully align with the scope of your manuscript, we invite you to explore our wider portfolio of journals covering diverse fields of study. Please select one of the journals below to identify the most appropriate publication platform for your work.