Cataract, Humans, Intraocular Lens Implantation, Ocular, Refraction
Conditions
Keywords
biometry, aberrometry, prospective study
Brief summary
the goal of this intervention study is to compare prospectively the accuracy of the power calculation between both groups, the intraoperative aberrometry (ORA) vs barrett universal II preoperative calculation (control group) . Researchers will compare ORA group vs control to see changes in spherical equivalent and uncorrected distance visual acuity
Detailed description
Studies have described a small difference between ORA (intraoperative aberrometer) and preoperative calculation with latest generation formulas ( Barrett Universal II ), the investigators intend to compare both groups prospectively, during the process randomization and blinding of the participants will be made. The investigators will report spherical equivalent and uncorrected distance visual acuity values at 90 days of the postoperative period.
Interventions
DEVICEIntraoperative aberrometer
the patient intraocular lens will be optimized during the aphakic period after cataract extraction and before intraocular lens implantation, this will produce a possible change in the dioptric power of the intraocular lens
OTHERPreoperative intraocular lens calculation
the intraocular lens in this group will be calculated preoperatively with Barrett Universal II formula
Sponsors
Instituto de Oftalmología Fundación Conde de Valenciana
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Masking description
None of the patients will be informed in what group they are assigned
Eligibility
Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* patients with senile cataract, patients undergoing phacoemulsification, complete biometric profile, axial length calculated by interferometer.
Exclusion criteria
* glaucoma, uncontrolled diabetic retinopathy, pseudoexfoliation syndrome, aged macular degeneration , dry eye syndrome, other ocular pathologies.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| spherical equivalent | 90 days of the postoperative period | Spherical equivalent values at 90 days of the postoperative period |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| uncorrected distance visual acuity | 90 days of the postoperative period | uncorrected distance visual acuity at 90 days of the postoperative period |
Countries
Mexico
Contacts
Primary ContactDIEGO ZAMORA - DE LA CRUZ, MD
Outcome results
None listed