ฉัน　ห้ามปราม　เพราะ　เขา　เอาแต่　เล่น　เกม　จน　ตาแฉะ　ซึ่ง　บั่นทอน　สุขภาพ　ค่ะ

I dissuade him because he does nothing but play games until his eyes are sore, which undermines his health.