Cataract surgical techniques have significantly changed in recent years with the widespread adoption of smaller and smaller clear corneal incisions for phacoemulsification. Microincision surgery has many advantages, including reduced surgically induced astigmatism, faster visual recovery, and reduced intra and postoperative inflammation. Curently, microcoaxial phacoemulsification is being performed through 1.8 as well as 2.2 mm incisions. However, there is still a debate as to which is the best absolute incision size for microcoaxial cataract surgery. The aim of this study is to evaluate incision stability following microcoaxial phacoemulsification performed through 1.8 and 2.2 mm systems, as well as compare intraoperative performance and postoperative outcomes following microcoaxial phacoemulsification performed through these two incision sizes.
Cataract surgical techniques have significantly changed in recent years with the widespread adoption of smaller and smaller clear corneal incisions for phacoemulsification. Microincision surgery has many advantages, including reduced surgically induced astigmatism, faster visual recovery, and reduced intra and postoperative inflammation. In the recent times, microcoaxial phacoemulsification has gained popularity. The main advantage of this newer technique is that it uses the same methods as the conventional method but with smaller incisions. Curently, microcoaxial phacoemulsification is being performed through 1.8 as well as 2.2 mm incisions. However, there is still a debate as to which is the best absolute incision size for microcoaxial cataract surgery. The aim of this study is to evaluate incision stability following microcoaxial phacoemulsification performed through 1.8 and 2.2 mm systems, as well as compare intraoperative performance and postoperative outcomes following microcoaxial phacoemulsification performed through these two incision sizes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
110
Phacoemulsification through small clear corneal incision
Phacoemulsification through clear corneal incision
Microcoaxial Phacoemulsification through 1.8mm incision
Microcoaxial phacoemulsification through 2.2mm incision
Iladevi Cataract & IOL Research Centre
Ahmedabad, Gujarat, India
RECRUITINGIngress of Trypan blue from the Ocular Surface into the Anterior Chamber
At end of surgery, stromal hydration of all incisions will be performed.0.0125% trypan blue will be instilled on the conjunctival surface.After 2 minutes, the surface will be irrigated with balanced salt solution. 0.1ml aqeous aspirate will be obtained from the anterior chamber.Concentration of trypan blue in the aspirate will be ascertained by UV visible spectrophotometry. Log dilutions of concentration of trypan blue will be used for statistical analysis
Time frame: Immediately at the end of surgery
Surgically Induced Astigmatism
Time frame: At baseline and 3 months postoperatively
Corneal Endothelial Cell Loss
Time frame: Baseline and 3 months postoperatively
Change in Central Corneal Thickness
Time frame: Baseline and 1 week
Anterior Chamber Inflammation
Time frame: Baseline and 1 week
Anterior Chamber Inflammation
Time frame: Baseline and 1 month
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