Comparing two frequencies for phacoemulsification for cataract.

COMPARISON OF EFFECTIVE PHACOEMULSIFICATION TIME AND CORNEAL ENDOTHELIAL CELL LOSS USING TWO DIFFERENT ULTRASOUND FREQUENCIES

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2017/03/008015

Enrollment

154

Registered

2017-03-06

Start date

Unknown

Completion date

Unknown

Last updated

2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: null- cataract

Interventions

Intervention1: high frequency: phacoemulsification using 42KHz Control Intervention1: low frequency: phacoemulsification using 28 KHz

Eligibility

Inclusion criteria

Inclusion criteria: Grade 4.0-6.9 (LOCS III grading) of senile cataract.

Exclusion criteria

Exclusion criteria: Patients with pre-operative endothelial cell density count less than 1500 cells/mm2. All eye pathologies that can compromise the visual recovery. Eyes with any kind of corneal dystrophy or corneal scars preventing visualisation of cataract for reliable grading. Raised intraocular pressure ( > 21 mmHg). Previous intraocular surgery.

Design outcomes

Primary

Measure	Time frame
effective phacotimeTimepoint: peroperative	—

Secondary

Measure	Time frame
central corneal thickness(CCT)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;coefficient of variation of cell size(CV)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;endothelial cell density(CD)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;hexagonal cell count(6A)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative	—

Measure

Time frame

central corneal thickness(CCT)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;coefficient of variation of cell size(CV)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;endothelial cell density(CD)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative;hexagonal cell count(6A)Timepoint: preoperatively,1 week, 1 month,3 months, 6 months,9 months, 1 year postoperative

—

Countries

India

Contacts

Public ContactDr Ritu Kumari

PGIMER & RMLHospital

praveenk002@yahoo.com9810405681

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026