User blog:Merlinfan/Sorcerers' eyes in Series 1

I was reading the trivia on the "High Priestesses" page, where it says that Nimueh is the only High Priestess whose eyes have not been seen glowing gold when performing magic, and suddenly I realised that Merlin is the only sorcerer in Series 1 whose eyes have actually glowed gold. I think that that's a detail the producers or script writers added to show that Merlin was an unusual and unique warlock, with an extra power that no one else had.

That is very clear when Merlin is confronting Edwin in "A Remedy to Cure All Ills". The dark sorcerer throws an ax at him, which the young warlock is able to stop with his mind. Edwin tries to strengthen his magic with a verbal spell, and the camera closes up to show his eyes, WHICH DO NOT GLOW. Then we see Merlin's eyes AND THEY DO GLOW. Merlin has a stroger or different magic (showed by his glowing eyes) that is able to counteract Edwin's attack.

However, I think that in Series 2 they thought the glowing eyes looked cool on every sorcerer and witch and decided to add this detail as a physical sign that distinguished all wielders of magic.

Now, what do you think? To you, is my theory correct? Let me know!