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First Author: D.Verma INDIA
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To study the behaviour of IOP for the first 24 hours after successful phacoemulsification, because very low or high IOP can have a bearing on visual outcome especially in patients with previous optic nerve compromise such as glaucoma
this study was done at DD eye institute Kota Rajasthan
a total no of 1000 eyes were studied. IOP was measured by NCT at 1 hour after surgery. patients whose IOP was very high or low were cross checked by Goldman tonometry. Patients with high IOP were given oral acetazolamide, & their IOP was once again checked after 6 hours.
Almost 50 % patients showed normal IOP after phacoemulsification. 35 % showed high IOP & 15 % showed low IOP, higher IOP typically peaks at 3 to 6 hours which returns to almost normal at 10 to 12 hrs after receiving oral acetazolamide, patients with lower IOP also recovered to normal IOP after few hrs.
To know the behaviour of IOP for the first 24 hours after phacoemulsification can be a useful tool in ascertaining the successful outcome of surgery. High IOP is generally related to anterior chamber inflammation, capsulorhexis size, deformation of anterior chamber angle during surgery, haemorrhage, pigment dispersion, retained lens matter & residual OVD.