Cataract
Conditions
Keywords
Microcoaxial phacoemulsification, 1.8mm, 2.2mm
Brief summary
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.
Detailed description
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.
Interventions
PROCEDUREMicrocoaxial Phacoemulsification
Phacoemulsification through small clear corneal incision
Sponsors
Iladevi Cataract and IOL Research Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
50 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
Uncomplicated age related cataracts, NO grade II III, IV (LOCS III classification) \-
Exclusion criteria
* Ocular comorbidity, glaucoma, uveitis, shallow anterior chamber, maximal pupillary dilatation \<6mm, high myopia (axial length \> 25mm), previous ocular trauma or surgery, pseudoexfoliation, traumatic cataract, subluxated cataract
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ingress of Trypan blue from the Ocular Surface into the Anterior Chamber | Immediately at the end of surgery | 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 |
Secondary
| Measure | Time frame |
|---|---|
| Surgically Induced Astigmatism | At baseline and 3 months postoperatively |
| Corneal Endothelial Cell Loss | Baseline and 3 months postoperatively |
| Change in Central Corneal Thickness | Baseline and 1 week |
| Anterior Chamber Inflammation | Baseline and 1 week |
Countries
India
Contacts
Primary ContactAbhay R Vasavada, MS,FRCS
Backup ContactVaishali A Vasavada, MS
Outcome results
None listed