Carlos told Gaby that it is only temporary and that his sight will return, but found out from Edie that Carlos's sight will never return.

What episode does Carlos get his vision back?

"A Vision's Just a Vision" is the 97th episode of Desperate Housewives.

Does Carlos regain his sight in Desperate Housewives?

Season 5. Five years after Season 4, Carlos' life has changed dramatically. ... Early in the season, Carlos learns that his sight can be restored. He happily anticipates seeing his wife for the first time in years and his daughters for the first time.