An interventional study of Intraoperative aberrometer and Preoperative intraocular lens calculation in Intraocular Lens Implantation, Cataract and Humans, sponsored by Instituto de Oftalmología Fundación Conde de Valenciana. Recruiting at 1 site in Mexico. Open to participants aged 40 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-14.
Sponsored by Instituto de Oftalmología Fundación Conde de Valenciana · Not applicable, Interventional, and Treatment
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
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.
1,701 studies on the registry are indexed under Cataract; 230 are open to participants now.
This study's planned enrollment of 300 is above the median of 80 across 1,155 interventional studies indexed under Cataract.
Browse Cataract studies →Instituto de Oftalmología Fundación Conde de Valenciana is the lead sponsor of 45 studies on the registry; 10 are open to participants now.
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Exclusion Criteria:
the intraocular lens calculation in this group will be optimized by the intraoperative aberrometer (ORA)
Device: Intraoperative aberrometer
Barrett universal II will be used in the control group.
Other: Preoperative intraocular lens calculation
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
Also known as: ORA
the intraocular lens in this group will be calculated preoperatively with Barrett Universal II formula
Also known as: Barrett Universal II
spherical equivalent
Spherical equivalent values at 90 days of the postoperative period
Time frame: 90 days of the postoperative period
uncorrected distance visual acuity
uncorrected distance visual acuity at 90 days of the postoperative period
Time frame: 90 days of the postoperative period
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Instituto de Oftalmología Fundación Conde de Valenciana