FREQUENCY AND CAUSES OF SPECTACLES INTOLERANCE AMONG PATIENTS WITH REFRACTIVE ERROR IN NATIONAL EYE CENTRE, KADUNA ABSTRACT AIM: To determine the causes of spectacles intolerance in National Eye Centre, Kaduna for planning and control of blindness. METHODOLOGY: Hospital based cross-sectional study was conducted among patients with refractive error using purposive non-probability recruitment of consecutive patients until desired sample size was obtained. The study was conducted in National Eye Centre, Kaduna, a mono-specialty tertiary hospital from May through October 2017. The study instrument was a pre-tested questionnaire designed for this purpose. Examination consisted of distant visual acuity measurement unaided, with pinhole and with patient's spectacles using the Smellen chart (or tumbling E chart where applicable) at meters. Near visual acuity was accessed at 40cm with distant correction in place for those who required...
PREVALENCE OF PRESBYOPIA, NEAR VISION SPECTACLE AND BARRIERS TO NEAR VISION SPECTACLE USE IN DUTSE, JIGAWA STATE ABSTRACT AIM: To determine the prevalence of presbyopia, near vision spectacle coverage and barriers to near vision spectacle use in Dutse Local Government Area, Jigawa State, Nigeria. METHODOLOGY: Population based quantitative cross sectional study was done with cluster random sampling using probability proportional to size to select 18 clusters of 40 participants each. The study was conducted in Dutse Local Government Area (LGA), Jigawa State from August to November, 2015. Examination consisted of distance visual acuity measurement with and without pinhole using the Smellen chart (or tumbling E chart where applicable) at 6 meters in ambient outdoor illumination. Subjective distance refraction was done and ophthalmology where necessary. To reduce testing time due to time constraints in data collection, astigmatism was not corrected for. Near visual acuity was assessed...
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