This condition is more commonly known as pink eye. Black Eye Corneal Abrasion Conjunctivitis Otitis Externa

## Step 1
The problem is asking us to identify the common name for a medical condition known as "pink eye". The options provided are "Black Eye", "Corneal Abrasion", "Conjunctivitis", and "Otitis Externa".
## Step 2
"Black Eye" is a condition that occurs when blood vessels under the skin of the eyelid break, causing a dark discoloration around the eye. This is not the same as "pink eye".
## Step 3
"Corneal Abrasion" is a condition where the cornea, the clear front part of the eye, is scratched or irritated. This is not the same as "pink eye".
## Step 4
"Conjunctivitis", also known as "pink eye", is an inflammation or infection of the conjunctiva, the transparent membrane that lines your eyelid and covers the white part of your eyeball. This condition can cause the eyes to appear pink or red.
## Step 5
"Otitis Externa", also known as "swimmer's ear", is an infection in the outer ear canal, which is the passage leading from the eardrum to the outer ear. This is not the same as "pink eye".
## Step 6
Based on the above analysis, the correct answer is "Conjunctivitis".