| Name | va_rightcode_gprd |
| Chapter | Diseases of the eyes and ears/Visual acuity |
| Definition | The cut-off between "Normal" and "Reduced visual acuity" is between 6/9 and 6/12, which is the legal requirement for driving. The definitions of "Sight impaired" and "Severely sight impaired" are based on definition of partially sighted or registered blin |
| Data Type | Categorical |
| Data sources | GPRD |
| Repeated | Yes |
| Valid event date range | 01/01/1900 - 25/03/2010 |
| Agreed | 20/09/2012 (Revision 1) |
| Category | Definition |
| 0 | Data Not Entered |
| 1 | Normal |
| 2 | Reduced visual acuity (VA 6/12 to 6/36) |
| 3 | Sight impaired (VA 3/60 to 6/60) |
| 4 | Severely sight impaired (VA worse than 3/60) |
| Implementation | Category assigned based on code list. |