Accuracy of intraoperative VLynk aberrometry versus preoperative biometry in short and long eyes.
- Conditions
- cataract
- Registration Number
- DRKS00028106
- Lead Sponsor
- Doctor, investigateur coordinateur in OFTALVIST Alicante and Promoter's representative of OFTALVIST (Oftalmología Vistahermosa, SL)
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 98
are willing and able to attend all study visits;
- be over 40 years of age, regardless of sex or race;
- have good ocular health, without any pathology that compromises visual acuity (VA, with the exception of residual refractive error).
- patients with indication for monofocal lens implantation.
- Eyes with an axial length of less than 22.1 mm (short eye).
- Eyes with an axial length greater than 25 mm (long eye).
- corneal opacity;
- previous radial keratotomy or other corneal surgery in addition to LASIK or PRK (e.g., corneal transplantation, DSAEK, lamellar keratoplasty). In these cases, a degree of freedom is added to the imprecision of the lens power calculation, adding bias to the study. They are therefore excluded from the study.
- previous anterior or posterior chamber surgery;
- vitrectomy;
- Laser iridotomy;
- diabetic retinopathy;
- history of retinal detachment;
- subjects who have an acute or chronic disease that confounds the results of this investigation (e.g., immunocompromised, connective tissue disease, clinically significant atopic disease, diabetes, or any other similar disease);
- keratoconus;
- amblyopia and/or strabismus.
- Pregnancy. Pregnancy has a known effect on refractive stability and VA so pregnant women are excluded.
Study & Design
- Study Type
- observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Collect clinical refractive data using the ORA VLynk intraocular lens power calculation system and compare with theoretical intraocular lens power calculations using ocular biometry with a commercial IOLMaster 700 biometer (Carl Zeiss Meditec, CE marked) in short (less than 22.1 mm) and long (greater than 25 mm) axial length eyes with implantation of a commercial monofocal lens.
- Secondary Outcome Measures
Name Time Method To assess the differences between eyes with short axial length (less than 22.1 mm) and long axial length (greater than 25 mm).