The objective of this study is to develop the comprehensive visual function evaluation method in severe visually impaired patient.
Age range
20 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Slit-lamp-microscopy
Timeframe: Up to 3 months
Optical Coherence Tomography (OCT) test
Timeframe: Day 1
Early Treatment Diabetic Retinopathy Study (ETDRS)
Timeframe: Up to 3 months
The 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ-25)
Timeframe: Up to 3 months
The 11-item National Eye Institute Visual Function Questionnaire (NEI VFQ-11)
Timeframe: Up to 3 months
Nottingham Adjustment Scale Japanese Version (NAS-J)
Timeframe: Up to 3 months
Daily living task dependent on vision (DLTV) questionnaire
Timeframe: Up to 3 months
Table test
Timeframe: Up to 3 months
Monitor test
Timeframe: Up to 3 months
Pupillary function test
Timeframe: Up to 3 months
Full field stimulus threshold testing (FST)
Timeframe: Up to 3 months
White flash visual evoked potential (VEP) test
Timeframe: Up to 3 months
Color flash VEP test
Timeframe: Up to 3 months
Electrically evoked response (EER) test
Timeframe: Up to 3 months
White flash Electroretinography (ERG) test
Timeframe: Day 1
Multifocal ERG test
Timeframe: Up to 3 months