What is the general guideline for determining disability ratings for visual impairments?

• A. Using uncorrected vision
• B. Best practicable correction
• C. Average of both eyes
• D. Last known correction

Answer: (B)

The general guideline for determining disability ratings for visual impairments focuses on the concept of "best practicable correction." This standard is utilized because it aims to assess an individual's vision capability with optimal correction measures, such as glasses or contact lenses, rather than relying solely on uncorrected vision. The principle behind this approach is that it acknowledges advancements in optical aids and recognizes that many individuals with visual impairments can significantly improve their functioning with appropriate corrections.

Using best practicable correction provides a more accurate representation of an individual's visual capabilities in real-world scenarios where corrective measures can be employed. This ensures that disability ratings reflect the practical abilities of a person rather than their inability to see without assistance, which can vary widely among individuals. Assessing vision in this manner leads to more equitable and applicable disability determinations.

Other choices such as using uncorrected vision would provide a less favorable rating for those who can benefit from correction, averaging both eyes may not reflect the severity of impairment in one eye compared to the other, and last known correction may not accurately capture current capabilities or improvements in vision due to new corrective options.