Assiut univercity
Asyut, 71111, Egypt
Completed
NCT Number: NCT07252154
Modified Nuclear Phacoemulsification in Brown Cataract
Irrigation of the nucleus with saline for 30 seconds after creating the central groove.
Completed
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Conditions
Age range
50 year–70 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
Primary location
About this study
The hard nucleus is physiologically immune against water flow from out to inside the nucleus but we discovered that it is not immune against the flow of water from inside the nucleus to outside. So, we are doing phacoemulsification as usual, but we stop when the gutter becomes half the thickness of the nucleus, then we use the tip of the phaco as irrigation for 30 seconds. the nucleus will become softer.
. As we know, the nucleus of the lens has the highest concentration of crystalline (high osmotic pressure), so the water will flow from the center of the nucleus to the outer surface without any resistance, and all adhesions and bonds between lens fibers will be broken at once, and the nucleus becomes softer.
Who can participate
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- Brown cataract
Exclusion criteria
- white cataract
- soft cataract
Treatment and study plan
phacoemulsification
Proceduredoing phacoemulsification as usual but we stop when the gutter becomes half the thickness of the nucleus then we use tip of the phaco as irrigation for 30 seconds. the nucleus will become more softer
Primary outcomes
-
phaco time
Time frame: 60 seconds
time of ultrasound power
Sponsors and collaborators
Lead sponsor
Assiut University
Other
Registry information
Official study title
Modified Technique for Nuclear Phacoemulsification in Brown Cataractous Nucleus
Important dates
- Study start
- 2025
- Primary completion
- 2025
- Study completion
- 2025
- First posted
- Nov 26, 2025
- Registry last updated
- Nov 26, 2025
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.