Methods and systems for testing contrast sensitivity using gradient patterns in virtual reality environments

A non-transitory computer readable storage medium, storing one or more programs for execution by one or more processors of an electronic device including an HMD, the one or more programs including instructions for:

• executing a visual assessment application, including generating a user interface corresponding to a three-dimensional (3D) virtual environment;
• displaying a plurality of visual stimuli at a first distance in the 3D virtual environment, the plurality of visual stimuli having a first optotype size and a plurality of first shadings, the first distance and the first optotype size defining a first acuity level;
• obtaining one or more user responses;
• based on the one or more user responses, determining a first contrast perception level corresponding to the first acuity level,;
• determining a shading range for a second acuity level based on the first contrast perception level;
• and
• determining a plurality of second shadings in the shading range;
• and
• displaying the plurality of visual stimuli at a second distance in the 3D virtual environment, the plurality of visual stimuli having a second optotype size and the plurality of second shadings.

An electronic device, comprising:

• an HMD;
• one or more processors;
• and
• memory for storing one or more programs for execution by the one or more processors, the one or more programs including instructions for:
• executing a visual assessment application, including generating a user interface corresponding to a three-dimensional (3D) virtual environment;
• displaying a plurality of visual stimuli at a first distance in the 3D virtual environment, the plurality of visual stimuli having a first optotype size and a plurality of first shadings, the first distance and the first optotype size defining a first acuity level;
• obtaining one or more user responses;
• based on the one or more user responses, determining a first contrast perception level corresponding to the first acuity level, ;
• determining a shading range for a second acuity level based on the first contrast perception level;
• and
• determining a plurality of second shadings in the shading range;
• and
• displaying the plurality of visual stimuli at a second distance in the 3D virtual environment, the plurality of visual stimuli having a second optotype size and the plurality of second shadings.