Intraoperative Aberrometry vs Conventional Intraocular Lens Calculation, a Prospective Study.
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Intraoperative aberrometer, Preoperative intraocular lens calculation.
- Who it may be relevant to
- Registry conditions: Intraocular Lens Implantation, Cataract, Humans, Ocular, Refraction. Basic parameters: from 40 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Mexico
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Intraoperative Aberrometry vs Conventional Introcular Lens Calculation ( Barrett Universal II / Barrett True K ), Refractive and Visual Outcomes, a Prospective Study.
Overview
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
- Device Intraoperative 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 - Other Preoperative intraocular lens calculation
the intraocular lens in this group will be calculated preoperatively with Barrett Universal II formula
Primary outcome measures
- spherical equivalent [Time frame: 90 days of the postoperative period]
Secondary outcome measures (1)
- uncorrected distance visual acuity [Time frame: 90 days of the postoperative period]
Eligibility criteria
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.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Treatment
Study locations
Mexico · 1 center
- Instituto de oftalmología Fundación Conde de Valenciana — Mexico City
Identifiers
NCT: NCT06219252 · CI-005-2023