Clinical trials: Ocular Refraction, open to volunteers
Refractive Assessment, Refractive Disorders
Algorithm-assisted Subjective Refraction Program Dedicated to Children
Current refraction assessment in children is dependent on the Eye Care Specialist and lacks standardization. Essilor has developed new algorithm assisted subjective refraction software dedicated to children of 6-12 years old and…
- Conditions
- Refractive Assessment, Refractive Disorders, Hyperopia and Myopia, Astigmatism
- Trial name
- NCT07046065
- Testing
- Non-cycloplegic Objective refraction, Non-cycloplegic conventional subjective refraction, Non-cycloplegic subjective refraction (Kids refraction software vA with Vision-R™)
- Where
- Portugal
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- Essilor International
Children Aged 3-5 Years, Vision Screening
Shared Reading for Pediatric Ophthalmic Education
We use generative AI to make personalized books for young children about going to the eye doctor. We want to see if reading these stories helps kids feel more comfortable and improves their overall experience at the clinic.
- Conditions
- Children Aged 3-5 Years, Vision Screening, Cycloplegic Refraction
- Trial name
- NCT07590791
- Testing
- Generative AI-customized educational book, standard printed educational leaflet, Commercially available children's book
- Where
- Taiwan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Mackay Memorial Hospital
Intraocular Lens Implantation, Cataract
Intraoperative Aberrometry vs Conventional Intraocular Lens Calculation, a Prospective Study.
the goal of this intervention study is to compare prospectively the accuracy of the power calculation between both groups, the intraoperative aberrometry (ORA) vs barrett universal II preoperative calculation (control group) .
- Conditions
- Intraocular Lens Implantation, Cataract, Humans, Ocular, Refraction
- Trial name
- ORAVSCTRL (NCT06219252)
- Testing
- Intraoperative aberrometer, Preoperative intraocular lens calculation
- Where
- Mexico
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Refractive Errors
Consistency of an Automated Subjective Refraction Program Between Personnel With Diverse Professional Backgrounds and Senior Optometrists
This study aims to evaluate the performance of automated subjective refraction performed by operators with different professional backgrounds.
- Trial name
- NCT07891884
- Testing
- Nurse-Operated Automated Subjective Refraction, Village Doctor-Operated Automated Subjective Refraction, Lay Personnel-Operated Automated Subjective Refraction
- Volunteers
- 254 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refractive Errors
Evaluation of the Agreement Between Automated Program-Operated Phoropter Subjective Refraction and Optometrist-Performed Subjective Refraction
This study aims to evaluate the performance of an automated subjective refraction system that operates a digital phoropter. By comparing its results with those obtained through conventional subjective refraction performed by an…
- Trial name
- NCT07891897
- Testing
- Automated Program-Controlled Subjective Refraction, Optometrist-Performed Subjective Refraction
- Volunteers
- 508 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Ophthalmic Diseases (Specific Types Not Restricted), Cataract
Research on a New Intelligent Mobile Screening and Diagnosis Pattern for Ocular Diseases
The global distribution of primary ophthalmic medical resources is uneven, and the traditional eye disease screening model has problems such as low efficiency, high cost and limited coverage.
- Conditions
- Ophthalmic Diseases (Specific Types Not Restricted), Cataract, Refraction Error, Diabetic Retinopathy (DR)
- Trial name
- NCT07003165
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Myopia, Moderate
Software Refraction With Mobilerone Versus Retinoscopy
Software refraction in the mobilerone for myopia and astigmatism is a novel medical device for myopia adults and elder children with or without astigmatism.
- Conditions
- Myopia, Myopia, Moderate, Astigmatism
- Trial name
- SRMR (NCT06059521)
- Testing
- Software refraction with Eye Test Technology in a mobilerone, Retinoscopy
- Where
- 3 sites in China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Refractive Errors, Myopia
Correlation Between Preoperative Refraction and Anterior Segment Parameters With ICL Vault
This prospective non-comparative interventional study aims to analyse the pre-operative factors affecting the range of optimal ICL vaulting.
- Conditions
- Refractive Errors, Myopia, Myopic Astigmatism
- Trial name
- NCT05670626
- Testing
- Refractive Surgery
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Hyperopic Astigmatism
Effect of WRAD Lens on Axial Growth and Refraction in Low-hyperopic Chinese Children
Myopia is one of the most common visual impairments worldwide.This not only poses long-term risks to individual health but also imposes significant medical and economic burdens on society.
- Trial name
- NCT07682974
- Testing
- With-the-Rule Astigmatic Defocus Lens, With-the-Rule Astigmatic Defocus Lens (Non-plano), Single Vision
- Volunteers
- 117 people, healthy volunteers welcome
- Sponsor
- He Eye Hospital