Premier League fans will have noticed that Liverpool manager Jurgen Klopp was on the touchline without his trademark glasses in their 3-0 victory over Norwich.It was a sight that Liverpool fans would have first noticed during their pre-season training camp when they were taken aback by pictures of the German without his famous specs.And the Daily Mirror have reported that the Liverpool manager has had treatment on his eyes since the end of last season.Jurgen Klopp had an operation on his eyes meaning he no longer needs his famous specsIt has surprised some fans who are used to seeing Klopp with his trademark glassesA source told them: 'He's had a bit of treatment on his eyes which went really well. It means he doesn't need to wear his glasses all the time. But he still may wear them occasionally in the dugout.'Some fans were shocked on social media to see Klopp without his frames.Twitter user Callumpal96 tweeted: 'Jurgen Klopp looks weird without his glasses. Like Pep with hair. Just doesn't look right.'May Elmi tweeted: 'I'm seeing Jurgen Klopp without his glasses tonight. Is it a new style or did he break them again?! LOL.'Klopp famously broke his glasses while emphatically celebrating Adam Lallana's late winner in a 5-4 victory over Norwich in 2016.LFCMumble offered a word of caution though as they commented: 'I just hope Jurgen Klopp's glasses weren't lucky glasses.'Liverpool got their season off to a flyer with a comfortable 3-0 victory away at NorwichI'm seeing Jurgen Klopp without his glasses tonight. Is it a new style or did he break them again?! LOL#NORLIV MAY ELMI (@mahamadsonic) August 14, 2021Jurgen Klopp looks weird without his glasses. Like Pep with hair. Just doesn't look right Cxllum (@_CallumPal96) August 14, 2021Klopp, has spoken about previous treatment he has received, including on his teeth which he joked about comparisons with Roberto Firmino.He said: 'I went to the dentist because I had some problems so really it was like you have to come in or it will get worse.'So I had to have antibiotics and medicine and I said 'could we do something new like crowns', and they said, 'yeah, of course we can'.I just hope Jurgen Klopps glasses werent lucky glasses LFC Mumble (@lfcmumble) August 14, 2021 'It was not as if I saw Bobby Firmino's teeth and said 'I want them' but I like them though. Firmino has world class teeth.'Klopp has got his eyes set on reclaiming the Premier League title with Liverpool this season.They got their season off to a flyer with a convincing victory thanks to goals by Diogo Jota, Roberto Firmino and Mo Salah.