Yes, that bulb can cause eye problems. If you have it running length wise side too side, horizontal it should be fine. If you are hanging it vertical it will cause problems and stop using it.
For the heat pad, it should not cover the whole bottom of the hide. He should be able too move off of it but still be able too remain in the hide. Tortoise are more accustomed to their heat coming from above not below so he may not regulate well.
Thank you. I thought I responded to your answer but may not have so....yes, I will be sure to hang the bulb length wise. Also, I will reorganize my hide to have half of it over the pad and the other not. That was my first instinct - but it was a cloudy day when I originally set it up I appreciate your insight!