Transverse vs torsional ultrasound: prospective randomized contralaterally controlled study comparing two phacoemulsification-system handpieces

Figures & data

Table 1 Phaco-system settings

Machine settings	AMO WhiteStar Signature phaco system	Alcon Infinity with Ozil phaco system
Sculpt	Aspiration: 22 cc/min	Aspiration: 27 cc/min
	Vacuum: 40 mmHg (peristaltic)	Vacuum: 150 mmHg (peristaltic)
	Power: 50% (transverse/longitudinal)	Power: 20% (torsional amplitude)
	65 cm/H2O (bottle height)	95 cm/H2O (bottle height)
Chop	Vacuum: 250 mmHg (Venturi)	Vacuum: 320 mmHg (peristaltic)
	Power: 40%	Aspiration: 32 cc/min
	70 cm/H2O (bottle height)	Power: 60% (torsional amplitude) 95 cm/H2O (bottle height)
Epinucleus	Aspiration: 38 cc/min	Aspiration: 30 cc/min
	Vacuum: 350 mmHg (peristaltic)	Vacuum: 230 mmHg (peristaltic)
	Power: 20%	Power: 60%
	60 cm/H2O (bottle height)	95 cm/H2O (bottle height)

Abbreviation: AMO, Abbott Medical Optics.

Figure 1 Phaco-power setting FX vs Ozil.

Figure 2 Mean volume balanced salt solution (BSS) used.

Figure 3 Mean endothelial cell (EC) loss throughout postoperative period.

Abbreviation: SEM, standard error of mean.

Figure 4 Mean change in corneal pachymetry throughout postoperative period.

Note: **P<0.05.
Abbreviation: SEM, standard error of mean.

Figure 5 Corneal edema at 1 day postoperatively (PO).

Note: No eyes had corneal edema 1 week PO.

Figure 6 Macular thickness results.

Note: **P<0.05.
Abbreviation: SEM, standard error of mean.

Figure 7 Postoperative uncorrected visual acuity (UCVA) throughout the postoperative period.