Development of Visual Function Evaluation Method (2)

Calibration of Visual Function Evaluation Tests in Patients With Severe Vision Loss

The objective of this study is to develop the comprehensive visual function evaluation method in severe visually impaired patient.

Inclusion Criteria:

• Subjects with severe visual disturbance (count-fingers or worse vision for severe eyes) at the time of obtaining the consent and at screening

Exclusion Criteria:

• Subjects should not have participated in any other clinical trial or clinical study involving visual function evaluation within 6 months
• History of surgery, past history, and complications (cardiac/ hepatic/ renal/ respiratory/ hematological diseases, optic nerve diseases causing marked loss of visual field, and uveitis etc.) that potentially affect evaluation and safety of the study
• Pregnant women
• Subjects who are judged that continuation of the study is difficult during the study period
• Subjects who are employed by the company sponsoring this study, an organization or institution related to this study