이것은 갑자기 날아온 축구공 등에 놀라 눈을 감는 현상하고 같다. This is similar to the phenomenon that someone close his eyes surprised at something like an unexpected flying soccer ball. 등(等) means "etc" e.g. 그녀의 취미로는 음악, 춤, 운동과 요리 등이 있다. Her hobbies include music, dancing, sport, and cooking. 증상에는 두통, 목 따가움 등이 있다. Symptoms include a headache and sore throat. 축구공에 놀라다 : surprised at soccer ball. 축구공 등에 놀라다 : surprised at soccer ball etc.

이것은 갑자기 날아온 축구공 등에 놀라 눈을 감는 현상과 같다. It could be.. This is like closing your eyes to a soccer ball that suddenly flew in. This is a phenomenon(현상) of closing your eyes in surprise at soccer balls that suddenly flew in. In this case 등에 놀라 could be translated 'surprise at Sth' In general terms, we don't use that expression often. But here is ~등에's example Ex) Act on the Promotion of Information and Communications Network Utilization and Information Protection, etc 정보통신망 이용촉진 및 정보보호 등에 관한 법률. In this case ~등에 translated 'etc'