The term visual impairment is identified in base64 scheme by the sequence dmlzdWFsIGltcGFpcm1lbnQ=, while the MD5 signature is equal to 59b2b3f9481b7822129f59a6e7af34d2. The ASCII encoding of visual impairment in hexadecimal notation is 76697375616c20696d706169726d656e74.