Impact of intelligent phacoemulsification software on torsional phacoemulsification surgery

Figures & data

Table 1 Distribution of cataract grades in groups operated with and without Ozil intelligent phacoemulsification software

Cataract grades	Surgery with IP software (n)	Surgery without IP software (n)	Total (n)
1–2 (soft)	14	18	32
3 (medium)	29	26	55
4–5 (hard)	24	17	41
Total (n)	67	61	128

Abbreviation: IP, intelligent phacoemulsification.

Table 2 Cumulative dissipated energy levels in different cataract densities operated with or without Ozil intelligent phacoemulsification

	Mean CDE ± SD
	Total (n = 128)	Grade 1–2 (n = 32)	Grade 3 (n = 55)	Grade 4–5 (n = 41)
With IP	14.0 ± 9.9	5.3 ± 3.4	12.5 ± 6.9	21.0 ± 10.8
Without IP	14.2 ± 10.9	4.9 ± 3.9	14.9 ± 7.4	23.1 ± 12.9
P value	0.928	1.0	0.899	0.966

Abbreviations: CDE, cumulative dissipated energy; IP, intelligent phacoemulsification; SD, standard deviation.

Table 3 Mean aspiration time was found to be shorter in the study group operated using Ozil intelligent phacoemulsification software, and the difference in aspiration time was significant for hard cataract densities (grades 4–5)

Mode of energy delivery	Mean aspiration time ± SD
	Total (n = 114)	Grade 1–2 (n = 37)	Grade 3 (n = 46)	Grade 4–5 (n = 31)
With IP	4 min 17 sec ± 2 min 13 sec	3 min 58 sec ± 2 min 4 sec	3 min 48 sec ± 2 min 10 sec	4 min 55 sec ± 2 min 16 sec
Without IP	5 min 17 sec ± 2 min 42 sec	4 min 38 sec ± 1 min 57 sec	4 min 44 sec ± 1 min 50 sec	6 min 49 sec ± 1 min 48 sec
P value	0.007	0.379	0.062	0.007

Abbreviations: IP, intelligent phacoemulsification; SD, standard deviation; min, minutes; sec; seconds.

Figure 1 Changes in the amount of fluid used during surgery with or without IP (Intelligent Phacoemulsification) software with respect to cataract density.

Note: Error bars: ±2.0 SE.

Table 4 Subgroup analysis of surgical parameters in eyes operated on using and not using intelligent phacoemulsification software by the three different surgeons

Parameter	Surgeon 1 (SHU)			Surgeon 2 (SCU)			Surgeon 3 (AA)
	With IP	Without IP	P	With IP	Without IP	P	With IP	Without IP	P
Cumulated dissipated energy	15.4 ± 10.7	12.9 ± 9.2	0.974	11.6 ± 6.9	15.1 ± 12.4	0.869	14.1 ± 11.6	13.9 ± 10.5	1.000
Estimated fluid	103 cc ± 39	101 cc ± 35	0.994	113 cc ± 31	111 cc ± 37	1.00	116 cc ± 63	128 cc ± 43	0.965
Aspiration time	05 min 2 sec ± 1 min 45 sec	5 min 9 sec ± 1 min 41 sec	1.000	5 min 42 sec ± 1 min 21 sec	6 min ± 1 min 55 sec	0.992	05 min 33 sec ± 2 min 41 sec	5 min 49 sec ± 1 min 29 sec	0.999
Case time	10 min 39 sec ± 2 min 45 sec	10 min 26 sec ± 5 min 40 sec	0.999	12 min 12 sec ± 2 min 59 sec	12 min 24 sec ± 6 min 6 sec	1.000	15 min 9 sec ± 10 min 58 sec	14 min 29 sec ± 6 min 4 sec	0.527

Abbreviations: IP, intelligent phacoemulsification; min, minutes; sec, seconds.