Aim-To describe the various types of glaucoma and glaucoma blindness in the Eye Clinic of the University of Benin Teaching Hospital, Benin City, Edo state, Nigeria.
Methods: This was a prospective study which was carried out among glaucoma patients in the Eye Clinic of the University of Benin Teaching Hospital with the aim of describing the various types of glaucoma. All glaucoma patients presenting for the first time in the hospital eye clinic over a one year period were enrolled in the study. Data was obtained using interviewer administered questionnaires and ocular examination included visual acuity, gonioscopy, slit lamp examination, fundoscopy, tonometry and visual fields. Data analysis was done using the Statistical Package for Social Sciences (SPSS) version 17.
Results: Two thousand and twenty three (2,023) new patients were seen in the eye clinic within the study period and two hundred and sixty five (265) of these making 13.1% had various types of glaucoma. Primary Open Angle Glaucoma (POAG) was the most common type seen among 63.4%, 22.3% patients had secondary glaucoma, 5.3% had juvenile glaucoma, 6.4% had Primary Angle Closure Glaucoma(PACG) while 2.6% had congenital glaucoma. Out of these patients one hundred and thirty three (50.2%) were blind either in one or both eyes at presentation. Educational status, age group and place of first presentation were significantly associated with blindness.
Conclusion: The percentage of new patients presenting in the Eye Clinic of the University of Benin Teaching Hospital with glaucoma is 13.1 %. POAG is the most common type of glaucoma followed by secondary glaucomas. Blindness was seen in over half, 50.2% of these new patients and was significantly associated with increasing age, lower educational status and first presentation with traditional healers.