Back to Freepaper Session

Evaluation of customised tip exposure for a safe and effective vertical chop in various grades of cataract using a calibrated phacotip

Session Details

Session Title: Phaco Techniques

Session Date/Time: Saturday 05/10/2013 | 08:30-10:30

Paper Time: 09:56

Venue: Main Lecture Hall (Ground Floor)

First Author: : V.Vohra INDIA

Co Author(s): :    P. Malik   T. Dewan   M. Gupta        

Abstract Details

Purpose:

To evaluate safety and effectiveness of calibrated phacotip (SRF CMP2) at varying amounts of phacotip exposure and penetration, in increasing grades of nuclear cataract for achieving a safe and effective vertical chop by comparing incisional fluid loss and endothelial cell count.

Setting:

Department Of Ophthalmology ,Dr.RML Hospital And PGIMER, New Delhi, India

Methods:

This is an observational comparative study based on the normogram suggested by prior study conducted using SRF CMP1 phacotip , showing correlation between phacodepth and grades of cataract while executing vertical chop. We enrolled 195 patients awaiting cataract surgery in 3 groups according to LOCS III grading; Group A (0.1-3.9), Group B(4.-5.5) and Group C(5.6-6.9) . During phacoemulsification, sleeve position on the specially designed calibrated phaco tip SRF CMP2 was kept as 2.4mm (group A), 2.6mm(group B) and 2.8mm (group C). Outcome variables compared between the 3 groups were: achievement of effective vertical chop, incisional fluid loss, incidence of posterior capsular rent and one month endothelial cell count.

Results:

The study population had a mean age of 60.85 ± 0.512 years. A successful vertical chop was achieved in all cases. Average incisional fluid loss seen in group A was 24.10 ± 0.93mL, group B was 24.62 ± 0.90mL and group C was 25.34 ± 0.96 mL. However no statistically significant difference in incisional fluid loss was noted between the three groups (p =0 .643) at higher sleeve position in increasing grades of cataracts. Also no significant difference was seen in the endothelial cell count of the three groups at 1 month (p=0.444), nor did the incidence of posterior capsular rent rise amongst the 3 groups.

Conclusions:

Using a calibrated phacotip ( SRF CMP2) for phacotip penetration, titrated according to nuclear hardness, doesn’t significantly affect the incisional fluid loss , endothelial cell count and incidence of posterior capsular rent thus making vertical phacochop more safe and effective.

Financial Interest:

NONE