Chemical and physical analysis of phaco handpiece tip surfaces before and after cataract surgery
- 1 August 2017
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of Cataract & Refractive Surgery
- Vol. 43 (8), 1107-1114
- https://doi.org/10.1016/j.jcrs.2017.05.027
Abstract
Purpose To evaluate the surface chemical composition and roughness of different phaco tips before and after their use during cataract surgery. Setting Eye Clinic, University of Trieste, Trieste, Italy. Design Experimental study. Methods Of the 66 tips studied, 33 (15 new, 15 after single use, and 3 after multiple uses) were studied with X-ray photoemission spectroscopy and 33 (15 new, 15 after single use, and 3 after multiple uses) were examined using scanning electron microscopy with energy dispersive X-ray spectroscopy analysis and contact profilometry. All analyses were performed on the far end of the tip. Results Used phaco tips showed signs of wear at the end of the tip, with the deposition of debris. The cutting edge appeared to be rounded and irregular. After surgery, an increase in the surface roughness was detected. The chemical analyses showed modification of the superficial alloy composition and the biological origin of some debris deposited after surgery. The deterioration and wear observed were more remarkable after multiple surgical procedures. Conclusions Used phaco tips showed relevant signs of deterioration and deposition of biological material, mostly involving the cutting edge. Reusable tips might release remnants of previous procedures. The adoption of single-use disposable phaco tips seems to be highly advisable.Keywords
This publication has 16 references indexed in Scilit:
- Comparison of different types of phacoemulsification tips. II. Morphologic alterations induced by multiple steam sterilization cycles with and without use of enzyme detergentsJournal of Cataract & Refractive Surgery, 2016
- Comparison of different types of phacoemulsification tips. I. Quantitative analysis of elemental composition and tip surface microroughnessJournal of Cataract & Refractive Surgery, 2016
- Thermal characterization of phacoemulsification probes operated in axial and torsional modesJournal of Cataract & Refractive Surgery, 2015
- Comparison of Two Different Ultrasound Methods of PhacoemulsificationAmerican Journal of Ophthalmology, 2014
- Phacoemulsification efficiency with a radiused phaco tipJournal of Cataract & Refractive Surgery, 2014
- Outcomes of torsional microcoaxial phacoemulsification using tips with 30-degree and 45-degree aperture anglesJournal of Cataract & Refractive Surgery, 2014
- The phaco machineCurrent Opinion in Opthalmology, 2013
- Incidence and long-term outcomes of toxic anterior segment syndrome at Aravind Eye HospitalJournal of Cataract & Refractive Surgery, 2011
- Role of cavitation in the phacoemulsification processJournal of Cataract & Refractive Surgery, 2008
- Metallic fragment deposits during phacoemulsificationJournal of Cataract & Refractive Surgery, 1998