What kind of Eved is this Pasuk referring to?
Rashi and Targum Yonasan: It is referring to an Eved Cana'ani. 1
Divrei Eliyahu, Kol Eliyahu: Whenever it says "Eved O Amah", it refers to Cana'ani. Refer also to 21:20:1:1. An Eved Ivri is only an adult, and an Amah Ivriyah is only a minor! (I.e. presumably, it would not discuss them together. However, you are forced to say that "ha'Ivri O ha'Ivriyah" (Devarim 15:12) equates them! - PF) Refer to 21:7:2:1*.
What are the implications of "ve'Chi Yakeh Ish es Ein Avdo"
Mechilta: It implies that the Eved only goes free if his master strikes his eye, but not if he blinded him by striking next to it, causing him to.go blind. 1 .
Or next to his ear, causing him to go deaf. See Torah Temimah, note 178.
What are the implications of "Veshichasah"?
Kidushin, 25b: It implies that the Eved or Shifchah only goes free if his master intended to destroy his eye 1
Kidushin 24b learns from "v'Shichasah" that he must intend to destroy it. R. Gamliel thought that his sLa'ave would go free because he accidentally blinded his sLa'ave's eye (Bava Kama 74b)!
Moshav Zekenim: R. Gamliel holds that he need not intend to destroy it.