Changes in Intra Ocular Pressure after Cataract Surgery
Keywords:Cataract, Phacoemulsification, Intra Ocular Pressure
Background: Rise in Intraocular Pressure (IOP) is the major contributing factor to the pathology of glaucoma.
Along with cataract, it is one of the leading causes of preventable blindness all over the world. Cataract surgery
can help reduce the IOP and our study helps confirm the same.
Methods: Our study included 150 eyes of 150 patients undergoing cataract surgery by phacoemulsification by
a single surgeon. Complete ocular examination was performed on all the patients which included uncorrected distance
visual acuity (UCVA) and best corrected visual acuity (BCVA) by Snellen’s chart, anterior segment by slit-lamp,
IOP by Goldmann’s Applanation Tonometry (AT), gonioscopy by 4 mirror gonioscope, Anterior Chamber Depth
(ACD) and Axial Length (AL) by A-scan. IOP measurements were taken between 9am and 10am.
Conclusion: Our study divided the patients into 3 groups based on IOP i.e., <15, 15-19, and 19-23 mmHg of IOP.
All the 3 groups showed a lesser IOP post cataract surgery. There was a significant decrease in IOP when
baseline was compared with post op week 1, week 4 and week 12. Therefore our study confirms that cataract surgery
with PCIOL causes reduction in IOP which remains sustained for months.
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