Magnitude and factors associated with refractive outcome among patients who undergone cataract surgery at boru meda hospital, South wollo, Ethiopia, 2021.
Abstract:
Background: Cataract, the opacification of the lens, is one of the commonest causes of blindness in the world. The only treatment of cataract is surgery with implantation of an intraocular lens. However, there are limited data on the refractive outcome and its associated factors with postoperative refractive correction in the study area.
Objectives: To assess the magnitude and factors associated with refractive outcome among patients who undergone cataract surgery at Boru Meda General Hospital, South Wollo, North eastern Ethiopia.
Methods: an institutional-based cross-sectional study was conducted at Boru Meda General Hospital on 398 patients undergone cataract surgery, selected by simple random sampling technique. Data entry was done by EPI -data version 4.6 and exported to STATA version14 statistical analysis. Ordinal logistic regression proportional odds model were used to determine associated factors with post operative refractive outcome by considering the p-value of ˂0.05 and 95% confidence interval.
Results: The magnitude of refractive outcome after cataract surgery was 44.3% (95% CI: 39.2, 49.2), 35.2% (95%CI: 30.5, 39.8) and 20.6% (95%CI: 16.9, 24.7) of the level of refraction outcome was good, fair and poor respectively. The respondents age ≥70 years (AOR=1.45, 95% CI 1.21, 2.96), rural residence (AOR=1.16 (95% CI: 1.06-2.23), difference intraocular lens power >1.00diopter (AOR=1.25 (95% CI: 1.05, 2.83) and history of comorbidity (AOR=14.2(95%CI: 7.85-25.54) were significantly associated with refractive outcome.
Conclusion: This study revealed that the magnitude of good refractive outcome was lower than WHO recommendation refractive outcomes after cataract surgery. Age of patients, residence, educational status, number of intraocular lens inserted, the difference between calculated and implanted intraocular lens, site of incision and history of comorbidity were found to be significantly associated with refractive outcome. amplitudes that enable one to cope with the change in the position of the eyes. This concept is of basic importance for the understanding of binocular cooperation and of the neuromuscular anomalies of the eyes [2].
