"100 Eye Grade" isn't a standard term in ophthalmology (the study of eyes). The number 100 in relation to eyesight usually appears as part of a visual acuity measurement like 20/100.
Understanding Visual Acuity: 20/100 Vision
The term 20/100 refers to visual acuity. This means you need to be 20 feet away from an object to see it as clearly as someone with normal vision can see it from 100 feet away. 20/100 vision is significantly worse than 20/20 vision (normal vision). As the second number increases, the vision is worse.
Several references mention "Grade 100," but in the context of rigging hardware, not eyesight. These Grade 100 hooks and slings are heavy-duty equipment used for lifting, rated to hold a specific weight capacity.
- Example: A "Grade 100 Eye Sling Hook" is a strong, forged steel hook used in lifting heavy objects. The "Grade 100" designation indicates its strength and safety rating.
Clarifying the Question
The original question, "What is 100 eye grade?" is ambiguous. It requires additional context to provide a precise answer. It could refer to:
- Visual Acuity: In this case, 20/100 would indicate significantly impaired vision.
- Rigging Hardware: Here, "Grade 100" specifies the strength rating of a lifting component.
