Normal Sharingan

[Minato of Konoha]

Will the light fade from the normal Sharingan if you overuse it or is it just for Mangekyou & above? I seem to forgotten a lot :confused:

[Kurokami]

Just MS, the regular sharingan can be always be used by an Uchiha.

[Nero Uchiha]

The Mangekyo puts major stress on the eyes because of the strength of the jutsu it uses, every strong jutsu has a downside, the Sharingans downside is that it uses a lot of chakra, the Eternal Mangekyo Sharingan doesn't have one apart from you need a family members MS to get it which can be emotional e.g. Madara n___n hope that helps

[The Western Wheel]

Only by looking to much with a normal sharingan into the sun, or if you weld with it, without protection.

Only the MS can go blind by over usage

[★Sir Derp Obito]

Only mangekyo sharingan not normal or ems

[Hyuugafan]

The Mangekyo puts major stress on the eyes because of the strength of the jutsu it uses, every strong jutsu has a downside, the Sharingans downside is that it uses a lot of chakra, the Eternal Mangekyo Sharingan doesn't have one apart from you have to go through extreme emotional pain, only Shisui and Itachi seem to have over come it n___n hope that helps

What He Said

[Animeniak]

Only the MS, the EMS is ,well, eternal. But the normal Shringan will not fade(as far as I know).