Authors
1
Department of Ophthalmology, Medical City Complex, Baghdad, Iraq.
2
University of Kufa, Faculty of Medicine, Najaf, Iraq.
,
Document Type : Research Paper
Abstract
ABSTRACT:
BACKGROUND:
Fifty percent of blindness worldwide is attributed to cataract, and cataract surgery is the most common surgery performed by ophthalmologist.
OBJECTIVE:
The objective of this study was to investigate the changes in anterior segment parameters and its correlation to IOP changes after phacoemulsification.
PATIENTS AND METHODS:
It’s a prospective cohort study that was done at Ibn Al-Haitham Teaching Eye Hospital for patients planned to have phacoemulsification, for 55 patients during 8 months, from the 1st.July.2018 to 28th.Feb.2019. The data included full preoperative and postoperative assessment, key parameters were: axial length measurement, intraocular lens, anterior chamber depth, anterior chamber volume, and anterior chamber angle for the four quadrants.
RESULTS:
There were statistically significant differences in preoperative compared to postoperative values of intraocular pressure (decreased by 4.55 mmHg), anterior chamber depth (increased by 0.74 mm), volume (increased by 32.75 µl), and mean angle (increased by11.78 degree) maximum inferiorly (12.31 degree) and minimum superiorly (8.29 degree). There was no statistically significant correlation between intraocular pressure changes with anterior chamber depth, volume, or angles, but there was a statistically significant correlation with preoperative intraocular pressure (correlation coefficient 0.513).
CONCLUSION:
A decrease in intraocular pressure does not correlate with anterior chamber depth, volume, and angle, so IOP seems not related to anatomical changes directly but to facility of drainage change after the surgery or uveoscleral outflow increase. The decrease in intraocular pressure was significantly higher in patients with higher preoperative values of intraocular pressure.
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