Aim:The aim of this study was to determine the visual outcome of patients who had cataract surgery in the University College Hospital Ibadan.Methodology:This is an observational descriptive, longitudinal study of consecutive patients undergoing cataract surgery at the University College Hospital conducted between May and October 2007. A total of 184 patients who presented to the hospital and met the inclusion criteria were recruited into the study. Patients were examined preoperatively, 1st day postoperatively and 8th week postoperatively.Results:The mean age was 66.5 years; and the male to female ratio was 1.2:1. Preoperatively, 137 patients (74.5%) were blind in the operated eye, while 39 patients (23.6%) were blind in both eyes at presentation. At 1st day postoperatively, 87 patients (47.3%) had pinhole visual acuity of 6/6-6/18. Best corrected vision after refraction eight weeks postoperatively showed that 127 patients out of 161 patients (78.8%) had good vision while 28 patients (17.4%) had borderline vision, and six patients (3.8%) had severe visual impairment after refraction. The number of bilaterally blind patients also reduced from 39 (23.6%) to one (0.6%). Uncorrected refractive error was the commonest cause of poor vision prior to refraction. Glaucoma was the commonest ocular co-morbidity accounting for poor vision in 9.1% of patients eight weeks after cataract surgery.Conclusion:This study demonstrates that good results can be obtained with cataract surgery and intraocular lens implantation in the developing world. More attention should be directed towards ensuring that successful outcomes are indeed being realized by continued monitoring of postoperative visual outcomes and prompt refraction for all patients.

SUMMARYObjective: The aim of this study was to determine the visual outcome of patients who had manual small incision cataract surgery in a high volume secondary eye hospital in southwestern Nigeria, and to identify reasons for poor outcome.Methodology: This is an observational descriptive, longitudinal study of consecutive patients undergoing cataract surgery at St Mary's Catholic Eye Hospital, Ago Iwoye (SMEH) Nigeria conducted between May and October 2007. A total of 146 patients who presented to the hospital and met the inclusion criteria were recruited for the study. Patients were examined preoperatively, 1st day and 8th week post-operatively. Results were analyzed using the SPSS statistical software. Significant association was taken at 95% confidence interval i.e. < 0.05. Results:A total of 146 patients who met the inclusion criteria were studied. The mean age was 65.3±10.04 years; and the male to female ratio was 1.4:1. Preoperatively, 110 patients (75.3%) were blind in the operated eye, while 33 patients (22.6%) were blind in both eyes at presentation. At 1 day st post-operatively, 17 patients (11.6%) had pinhole visual acuity of 6/6-6/18. Out of 137 patients that had refraction, 114 patients (83.2%) had a visual acuity of 6/6-6/18. The number of blind patients also reduced from 33 (22.6%) to 1(0.7%). Uncorrected refractive error was the commonest cause of poor vision post-operatively. Conclusion:This study demonstrates that good results can be obtained with small incision cataract surgery with intraocular lens implantation in the developing world. Increasing cataract surgery with IOL implantation should reduce the number of eyes with poor functional vision after cataract surgery.

Results: There were 23 (65.7%) males and 12 (34.3%) females. The mean age was 32.8±18.64. A positive history of trauma was present in 48% of patients. In 6% of the patients, the predisposing factor was severe allergic conjunctivitis. The presenting visual acuity was <6/60 in 66% of the patients, <6/18-6/60 in 14%, and 6/6-6/18 in 17% of the patients. At discharge, 40% had a visual acuity of 6/6-6/18, 15% had borderline vision (<6/18-6/60), 40% had severe visual impairment (<6/60), while 5% had no light perception. The most common organisms isolated microbiologically were Staphylococcus aureus in 28.6%, Streptococus pneumoniae in 8.6%, and Pseudomonas aeruginosa in 2.9%. The risk factors for poor visual outcome were late presentation, farming, stromal thinning and large corneal involvement. Conclusion:Bacteria is responsible for most cases of suppurative keratitis in a developing country like Nigeria and the risk for poor visual outcome includes late presentation, farming, stromal thinning and large corneal involvement.

Ori stream (one of the tributaries of River Oba, Iwo, Osun State, Nigeria) was studied from October to December 2013 with the aim of providing baseline information on its water quality, phytoplankton primary productivity and invertebrate faunal composition. Plankton samples were collected by towing plankton net over a 2 metres horizontal distance, while benthic macroinvertebrate samples were collected by kick-sampling technique. Hydrological and some physico-chemical variables were determined in-situ, and water samples collected for further physico-chemical analyses in the laboratory. A total of 17 phytoplankton species, seven species of zooplankton and eight species of benthic macroinvertebrates were recorded. The upper reach of the stream was the most polluted with the presence of biological indicators of poor water quality, while the lower reach recorded some biological indicators of good water quality. Although the upper reach recorded the highest gross primary productivity, the highest net primary productivity was recorded at the stream's lower reach. Water quality typically decreased from the upper reach of the stream towards the middle reach but later picked up at the lower reach before discharging into River Oba. The physico-chemical and biotic nature of the different reaches were a reflection of human activities in and around the stream.

ACG is not an uncommon disease. Early and effective diagnosis is important to prevent blindness.