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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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NCT05232214
The aim of the study is to compare the agreement and repeatability of ocular biometric parameters obtained using three swept-source optical coherence tomography (ss-OCT) device (Argos, IOLMaster 700 and ANTERION). This is a prospective, single centre study, that would include a number of 50 eyes of 50 patients, which attend pre-surgical examination. Three measurements per biometry device will be performed on the day of the first eye surgery. The measurements will be performed in a randomised fashion with three ss-OCT devices (IOLMaster 700, Argos and ANTERION). Inclusion criteria are: 40 years or above, age-related cataract, 20 eyes with AL\< 22.0 mm and 30 eyes with AL\>25.5 mm. Exclusion criteria are: patients with ocular or systemic pathologies that would interfere with the measurements (e.g. dense cataract, corneal pathology, nystagmus). The main outcome of the study will be: the difference (Limits of agreement) between the devices for the following parameters: keratometry (Ks, Kf, Km), CCT (µm), ACD (mm), LT (mm), AL (mm). Secondary outcomes will be: repeatability coefficient and coefficient of variation between the three device, measurement time for each device, and the feasibility for the Argos device.
NCT04329754
In this study the rotational stability and performance - with respect to glistening and PCO formation - of a new hydrophobic acrylic IOL (IPure, PhysIOL, Belgium) will be compared to a gold standard IOL (AMO ZCB00) in a randomized controlled fashion. Fifty eyes of 50 patients will be included. 25 patients will receive the iPure and 25 patients will receive the standard IOL. Study hypothesis: The iPure IOL shows better rotational stability compared to the standard IOL. A clinically relevant difference for rotational stability is defined as 2°.