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. 2019 May;67(5):619–624. doi: 10.4103/ijo.IJO_1146_18

Table 4.

Comparison of intraoperative parameters of phacoemulsification in the groups stratified according to the grade of cataract operated

Grade 1 Grade 2 Grade 3 Grade 4




Mean±SD P Mean±SD P Mean±SD P Mean±SD P




Nondiabetic (n=45) Diabetic (n=11) Nondiabetic (n=80) Diabetic (n=17) Nondiabetic (n=52) Diabetic (n=13) Non-diabetic (n=17) Diabetic (n=13)
CDE* 3.22±3.24 3.732.24 0.321 8.55±4.97 7.18±3.97 0.469 15.50±7.37 11.15±5.94 0.031 30.59±10.27 21.0±8.69 0.009
Ultrasound total time (s)* 11.07±11.02 18.09±20.08 0.329 30.91±20.96 27.18±19.97 0.468 53.15±26.84 49.38±24.36 0.60 93.00±34.90 66.38±26.16 0.050
Torsional amplitude* 24.47±19.05 32.45±13.36 0.351 40.34±11.20 40.41±8.80 0.672 48.46±10.70 43.15±6.35 0.092 51.71±9.49 49.31±10.03 0.408
Torsion usage time (s)* 9.80±10.03 9.09±5.20 0.777 24.55±16.67 20.53±13.42 0.345 37.40±18.34 45.23±25.95 0.257 53.24±32.41 53.77±22.39 0.711
Aspiration time (s) 163.51±41.84 161.82±56.97 0.928 186.76±61.26 187.12±44.35 0.978 198.60±66.48 183.38±31.15 0.235 246.06±102.12 187.31±36.30 0.039
Fluid usage (mL) 66.58±25.58 70.09±22.47 0.657 76.94±32.75 83.59±31.77 0.443 93.77±34.72 82.38±14.81 0.078 115.47±45.04 83.0±21.12 0.015

*Mann-Whitney U-test; SD=Standard deviation; CDE=Cumulative dissipated energy; ECC=Endothelial cell count; CCT=Central corneal thickness