The group of patients with first - level blindness who became blind acquiredly and have only light perception or no light perception in both eyes.
Conditions
Interventions
People with visual impairment of Category 1 blindness caused by acquired factors:NA
Sponsors
Eye & ENT hospital of Fudan University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. Aged between 18 and 65 years old (inclusive); 2. Possess a certain level of cognitive ability and be capable of effective communication; 3. Be acquiredly blind; 4. Be in the group of category 1 blind patients with only light perception or no light perception in both eyes; 5. Voluntarily participate in this study and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. A history of mental illness; 2. Severe cognitive or communication disorders; 3. Congenital blindness; 4. Visual acuity not meeting the criteria for category 1 visual impairment; 5. Subjects with monocular visual impairment; 6. Patients who refuse to sign the informed consent form.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Investigation and Analysis on Product Demand for Visual Prostheses Related to Visual Function Realization;Investigation and Analysis on Product Demand for Visual Prostheses Related to Device Design;Determine the expected benefits and acceptable risk-benefit ratio based on the survey data; | — |
Secondary
| Measure | Time frame |
|---|---|
| Demographic and socio-economic characteristics;Impact on quality of life;Clinical characteristics; | — |
Countries
China
Contacts
Public ContactWu Jihong
Eye & ENT hospital of Fudan University
Outcome results
None listed