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Effect of fluidicity parameters during phacoemulsification on postoperative outcome in different nuclear densities

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Abstract Details


To evaluate the effect of fludicities paramters changs during phacomeulsifications on postoperative outcome in different nuclear densities


North american LASIK and eye surgery center, Dubai, UAE


This study included 50 eyes (50 patients) with age-related Patients with nuclear sclerosis grades 2 and 3 as per the LOCS III classification were included. Exclusion criteria were: presence of glaucoma, shallow anterior chamber (ACD < 2.1 mm), pupillary dilatation < 6 mm, extremely soft or dense cataracts (grades 1, and > grade 4 according to the LOCS III classification), posterior polar cataract, subluxated cataract, white mature cataract, diabetic retinopathy, high myopia (defined as AL > 25 mm), uveitis, or previous ocular trauma. The patients were assigned to Group 1(low fluidic parameters: (LFP) Aspiration flow rate(AFR) 20cc/min; bottle height(BH) 90 cm; vacuum 400 mm Hg) or Group2(high fluidic parameters: (HFP) AFR: 40cc/min, BH: 110 cm; vacuum 400 mm Hg). Postoperatively, rate of change in central corneal thickness(CCT) at days 1 and 7, endothelial cell density(ECD) at 3 months, anterior chamber inflammation on days 1 and 7 and corneal clarity on day 1 were compared


Group 1 comprised 25 eyes (LFP) and Group 2 another 25 eyes (HFP). The postoperative increase in UDVA and CDVA was statistically significant in both groups (P<.05). No intra or postoperartive complications were recorded There were no significant differences between the 2 groups regarding the change of UDVA, CDVA, refractive error reduction (P>.05). Rate of change in CCT was greater in Group 2 at postoperative days 1 and 7 (P< 0.001).Anterior chamber inflammation and corneal clarity at 1 day were significantly better in Group 1.


Higher aspiration flow rate and bottle heights are associated with higher anterior chamber imflamations and more edematous cornea postoperatively FINANCIAL INTEREST: NONE

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