Here's the deal, changing the size of the TM and adding the text isn't a change really, the TM change it better visually ... but when people ask what they think of the logo I type into google two things "(Name of company) logo" followed up by "(graphic element) (vector or clipart)" if there's a graphic element. I know I don't have to google the eye to know that every 15 year old with a pirated version of illustrator jumps straight to drawing eyes. So, my honest opinion is ... How does the eye relate if the visual impact of a simplified eye is so overdone they expect to see it blend in when compared to logos of other places that use eyes in the same field. Now that doesn't mean you need someone getting punched in the face for your logo ... would be cool, but think of your customer base. You're logo is professional looking, clean lined and colored and simple ... just hard to find you since again ... google is your best friend here ... people rely on google or bing to find you most of the time ... they google your name ... which leads to 3 people in a similar field.