Cataract
Conditions
Keywords
Improvement of adjustment accuracy of intraocular lenses and imaging quality
Brief summary
It is planned to implant the intraocular lenses XL Stabi ZO and Invent ZO into the eyes of patients for whom a cataract operation is medically indicated. The lenses are marketed and CE certified. Their implantation is clinical routine. In the trial the accuracy of prediction of target refraction and the difference between calculated and measured contrast vision will be examined for both lens types.
Interventions
DEVICEInvent ZO
monofocal aspheric IOL for implantation into capsular bag
DEVICEXL Stabi ZO
monofocal aspheric IOL for implantation into capsular bag
Sponsors
Carl Zeiss Meditec AG
Study design
Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Indication for cataract operation * Written informed consent of patient after information
Exclusion criteria
* Immobility * Limited capacity of understanding * Diseases that hamper a follow-up examination * Astigmatism \>2.0 D * Patients with ocular diseases who may be expected to show a vision of less than 0.63 (decimal) two months after cataract surgery with implantation of intraocular lens * Complications during surgery, especially complications with positioning of the intraocular lens and with capsulorhexis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Difference between calculated and measured contrast vision. | postop. |
| Accuracy of prediction of target refraction | postop. |
Countries
Germany
Outcome results
None listed