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Refractive Lens Surgery

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204 J.L. Alio · A. Galal · J.-L.R. Prats, et al.<br />

1. Group I: MICS versus regular phacoemulsification<br />

(100 eyes) in the following parameters:<br />

(a) Incision size<br />

(b) Cataract grade<br />

(c) Endothelial cell count<br />

(d) Laser flare<br />

(e) Pachymetry<br />

(f) Mean emulsification time<br />

(g) Mean power<br />

(h) Mean effective phacoemulsification time<br />

2. Group II: MICS versus regular phacoemulsification<br />

(40 eyes of 24 patients) in the following<br />

parameters:<br />

(a) Postoperative astigmatism<br />

(b) Intraoperative saline consumption<br />

21.3.4 Results of LUS-MICS<br />

Microincision cataract surgery using ultrasound<br />

or laser offers the advantage of having<br />

a superior biological effect on the ocular<br />

structures compared with conventional pha-<br />

coemulsification procedures. A study of the<br />

parameters that control the procedure in<br />

both techniques found the following.<br />

Working in a closed compartment while<br />

operating through the microincisions is characteristic<br />

of MICS surgery. The pressure of<br />

the anterior chamber was found to be higher<br />

in MICS surgery than in conventional phacoemulsification.<br />

The vacuum used during surgery was<br />

found to be higher in MICS surgery, which is<br />

essential in performing this type of surgery.<br />

The percentage of phacoemulsification<br />

differed according to the machine used. The<br />

grades of cataract operated with different<br />

machines were compared.A lower percentage<br />

of phacoemulsification was performed when<br />

using MICS 30- and 300-burst modes (Accurus<br />

system),but using the 300-burst mode delivered<br />

less power to the ocular tissue when<br />

the power was calculated (Fig. 21.2).<br />

Microincision cataract surgery offers the<br />

advantage of lowering the percentage of cells<br />

loss during the procedure. Comparing the re-<br />

Fig. 21.2. Comparison of MICS with<br />

conventional phacoemulsification

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