How to lead a blind person

Question 1

what are the causes of visual impairment

Answer 1

• refractive error
• catarat
• glaucoma
• diabetic eye disease

Question 2

What do you need to be to be registered sight impaired

Answer 2

Visual acuity of 3/60 to 6/60 with a full field vision

VA of up to 6/24 with a moderate reduction of field vision

VA of up to 6/18 with severe visual field constriction

Question 3

what do you need to be regiersted severely sight impaired

Answer 3

VA 3/60 or worse with a full visual field

VA between 3/60 and 6/60 with a severe reduction of field of vision

VA of 6/60 or above but with a very reduced field vision