A Study of the Effect of Different Doses of Difluprednate Eye Drops on the Intraocular Pressure After Phacoemulsification

Kafrelsheikh University

Status and phase: Enrolling; Phase 4

Conditions: Uveitis, Anterior

Treatments: Drug: Difluprednate Eye Drops

Study type: Interventional

Funder types: Other

Identifiers

NCT05649111

50-11-16

Details and patient eligibility

About

The study aims at detecting the minimum effective daily dose and duration of difluprednate that can be used to treat postoperative inflammation after phacoemulsification without increasing the intraocular pressure, and whether it can be safely given within the first 24 hours after the operation.

Full description

Conventional phacoemulsification will be performed by the same surgeon for all the cases using the stop and chop technique. Anterior chamber examination for flare and cells using slit-lamp biomicroscopy according to the SUN recommendations and intraocular pressure measurement using Goldmann applanation tonometer will be done for all the cases before surgery and on the 1st, 3rd, 7th, 14th days as well as one month after the procedure.

All cases will receive Nepafenac 0.1% ( Nevanac 0.1%) 3 times per day on the last preoperative day, one tablet of Acetazolamide 250 mg (Cidamex 250mg) within the first 3 hours after the procedure and Moxifloxacin (Vigamox 0.5%) 0.1 ml intracameral and post-operative drops 3 times per day for 10 days and will be divided into:

In this pilot study:

• Group A : will receive Difluprednate 4 times per day for 1 week, then twice per day for 1 week and then once per day for 5 days starting 24 hours after the operation
• Group B : will receive Difluprednate 3 times per day for 4 days, then twice per day for 4 days and then once per day for 4 days starting 4 hours after the operation

Enrollment: 20 estimated patients

Sex: All

Ages: 40 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age 40-80
• Grade 1 to 4 nuclear cataract LOCS II
• Cumulative dissipated energy CDE 1 to 10
• Done by a single surgeon using the chopping technique

Exclusion criteria

• History of uveitis
• the use of topical or systemic steroids on the last post-operative day
• Intraoperative or postoperative complications
• Intraoperative iris manipulations or phaco traume

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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20 participants in 2 patient groups

Group A

Active Comparator group

Description:

will receive Difluprednate 4 times per day for 1 week, then twice per day for 1 week and then once per day for 5 days starting 24 hours after the operation

Treatment:

Drug: Difluprednate Eye Drops

Group B

Active Comparator group

Description:

will receive Difluprednate 3 times per day for 4 days, then twice per day for 4 days and then once per day for 4 days starting 4 hours after the operation

Treatment:

Drug: Difluprednate Eye Drops