Related Experiment Video
Updated: Feb 11, 2026

Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Comparison between the prechopping method with a reverse chopper and the routine stop-and-chop method in treating
1Beijing Tongren eye center, Beijing keynote laboratory of ophthalmology and visual science, Beijing Tongren hospital affiliated to capital medical university, 100730 Beijing, China.
Abstract:
The aim of this study was to compare the safety and efficacy between the prechopping method using a Reverse Chopper (iHPC) and the routine stop-and-chop (RSC) method in phacoemulsification of cataracts with grade IV hard nuclei (HNC (≥IV)). A total of 32 patients (32 eyes) scheduled for Phaco combined with intraocular lens (Phaco-IOL) for HNC (≥IV) from March 2015 to January 2016 were enrolled and randomly divided into two groups (the iHPC group, n=16 and the RSC group, n=16) so as to compare the effective intraoperative Phaco time, corneal edema 1-3 days after surgery, best corrected visual acuity (BCVA), and rate of loss of corneal endothelial cells (CECs) 1 month after surgery. The effective intraoperative Phaco time in the iHPC group was shorter (42.56s vs. 78.63s, P=0.000), the degree of corneal edema 1-3 days after surgery was less (P<0.01), the ratio of cases with BCVA>0.6 was higher, and the CEC loss rate was lower (13.36±2.85% vs. 25.77±3.81%, P=0.000). Compared with RSC, iHPC can reduce CEC injury in Phaco surgery, and the patients can recover their vision faster.
More Related Videos
Related Concept Videos
Methods of Documentation IV: Focus Charting
It typically involves three columns for recording information:
Renal Drug Clearance: Comparison Between Renal Excretion Methods
Renal clearance is often associated with the renal glomerular filtration rate (GFR), which represents the rate at which plasma is filtered through the glomeruli in the kidney. When drug reabsorption is minimal and there is no active secretion, renal clearance is closely related to the...
The Nucleus
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
The Nucleus
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
The Sense of Self: Reflected Self-Appraisal and Social Comparison
Methods of Sterilization I: Physical Methods
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...

