Comparison of Two Different Optical Biometric Systems

Democritus University of Thrace

Status: Enrolling

Conditions: Ocular Biometry; Cataract; Intraocular Lens; Presbyopia

Treatments: Device: Argos (Alcon Laboratories, Inc.); Device: IOLMaster 500 (Carl Zeiss Meditec AG)

Study type: Observational

Funder types: Other

Identifiers

NCT05411341

ES9/Th3/05-05-2022

Details and patient eligibility

About

Primary objective of this study is to evaluate and compare the measurements of two different optical biometrics systems in patients who will undergo cataract surgery or presbyopia surgery using intraocular lenses (IOL-PC).

Full description

This is a prospective study including patients visiting the outpatient Ophthalmology clinic of the University General Hospital of Alexandroupolis, who suffer from diagnosed cataract or presbyopia and are going to undergo implantation of intraocular lenses surgery. The patients will be fully informed about the procedure and the purpose of the study and a written informed consent will be provided by all participants. They will then undergo an ocular biometry examination using two optical biometric systems, Argos (Alcon Laboratories, Inc.) and IOLMaster 500 (Carl Zeiss Meditec AG). IOL Master 500 (Carl Zeiss Meditec AG) is a non-invasive optical biometer that uses partial coherence interferometry (PCI) with a wavelength of 780 nm to measure the AL of the eye. Argos (Alcon Laboratories, Inc.) is a novel non-invasive optical biometer that uses swept source optical coherence tomography (SS-OCT) with a wavelength of 1050 nm. The measurements of the two systems that will be compared are the axial length, the keratometry values, the anterior chamber depth (ACD), the horizontal corneal diameter (white to white [WTW]) and the lens power in diopters (D).

Enrollment: 100 estimated patients

Sex: All

Ages: 18 to 85 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Patients with cataract and/or presbyopia who will undergo intraocular lens implantation.

Exclusion criteria

• Dense cataract that does not allow measurements to be taken with an optical biometrics system.

Trial design

100 participants in 1 patient group

Study Group

Description:

100 patients with diagnosed cataract or presbyopia who will undergo implantation of intraocular lenses surgery

Treatment:

Device: IOLMaster 500 (Carl Zeiss Meditec AG)

Device: Argos (Alcon Laboratories, Inc.)