Clinical trials: Biometrics Measurement
Myopia
Assessment of Measurement Variability Across Automated Biometry Devices
This is a non-interventional prospective, comparative study of white-to-white, corneal thickness, and anterior chamber depth measurements as taken on the Orbscan II compared to the IOL Master 700 (Zeiss), IOL Master 500 (Zeiss)…
- Trial name
- NCT06045325
- Testing
- Orbscan II, IOL Master 700, IOL Master 500
- Where
- United States
- Volunteers
- 204 people, healthy volunteers welcome
- Sponsor
- Berkeley Eye Center
Small for Gestational Age Infant, Fetal Growth Restriction
Developing and Testing AI Models for Fetal Biometry and Amniotic Volume Assessment in Fetal Ultrasound Scans.
Routine fetal ultrasound scan during the second trimester of the pregnancy is a low-cost, noninvasive screening modality that has been proven to lower fetal mortality by up to 20%.
- Conditions
- Small for Gestational Age Infant, Fetal Growth Restriction, Oligohydramnios, Polyhydramnios
- Trial name
- NCT05059093
- Testing
- Classification and segmentation deep learning models
- Where
- 6 sites in Morocco
- Volunteers
- 122 people, healthy volunteers welcome
- Sponsor
- Deepecho
Pseudoaphakia
Time Study for Biometry Measurements With the Lenstar and IntraOcularLens (IOL) Master 500
The objectives of this study are to determine the time needed to complete a full set of measurements (Total Ophthalmic Exam, Subject Data Entry and Acquisition of the Measurement) by each test device, the Lenstar 900 Version i4…
- Trial name
- NCT01550939
- Testing
- Ophthalmic Biometer
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Haag Streit USA
Smoking ( Cigarette), Cornea
Acute Ocular Effects of Cigarette Smoking
This prospective study aims to evaluate the short-term effects of smoking on corneal tomographic and biometric measurements in healthy adults.
- Conditions
- Smoking ( Cigarette), Cornea, Anterior Eye Segment Measurements
- Trial name
- NCT07580040
- Testing
- Cigarette Smoking Exposure, No Smoking Exposure
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Istanbul University
Healthy
Influence of Artificial Tears on Keratometry and Biometry Measurements With Different Devices
The goal of this clinical trial is to learn about the influence of artificial tears on measurements of healthy eyes with three different devices.
- Trial name
- NCT06358456
- Testing
- Artificial tear, No artificial tears
- Where
- Germany
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Biometrics Measurement
Validation of In-Ear Sensor
The purpose of this study is to clinically validate noninvasive in-ear sensor.
- Trial name
- NCT04680871
- Testing
- In-Ear Sensor
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Starkey Laboratories, Inc
Cataract, Lens Opacities
Feasibility Investigation of Biometry and Tomography Measurements in a Heterogeneous Patient Cohort
The planned clinical investigation will be conducted to acquire raw data for the development of the algorithm. The data acquisition is intended to obtain first impressions of the potential performance of the changed hardware and…
- Conditions
- Cataract, Lens Opacities, Artificial Lens Implant, Corneal Astigmatism
- Trial name
- BioBase (NCT05458661)
- Testing
- Clinical Prototype BioBase (SN 07 and SN 08)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec AG
Child Development
Dongguan Eye Study of Schoolchildren and Adolescents（DESSA）
This is a study to report the change of ocular biometry of schoolchildren and adolescents as well as its association with birth parameters in China.
- Trial name
- NCT03409094
- Where
- China
- Volunteers
- healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Birth Weight, Fetal Body Weight
Cross Sectional Area of Umbilical Cord Versus Hadlock's Formula in Prediction of Neonatal Birth Weight
Ultrasound measurement of cross sectional area of umbilical cord might offer advantage over Hadlock's formula for accurate estimation of actual birth weight at term gestation leading to prevention of large number of maternal and…
- Trial name
- NCT05362175
- Testing
- Obstetric ultrasound
- Where
- Egypt
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Ain Shams University