Tikkunim for the past, present, and future
Some Tikkunim for sins of the eyes, collected and translated by www.jewishsexuality.com.
(Note: These aren't just Tikkunim for the past, but will help you also to control your eyes in the future).
A person who was wont to gaze lustfully at women or at forbidden images should accustom himself to cast his gaze downward at all times, and particularly during times of prayer, when the Shechinah is present. (Reshit Chochmah, Gate of Kedusha, 8:15 and 45; Sefer Haredim, Mitzvah T'shuva, Ch.1; also, Rabanu Yoneh, Gate of T'shuva, Gate One, 35)
To the extent that one looked upon unholy things, he should strive to gaze upon holy things like tzitzit, Torah texts, prayer books, blessings, and the like. It is especially helpful to look at the Torah text when one is called up for the reading of the Torah, and to look closely at the written parchment in order to make out the letters when the Torah scroll is held up [hagbah] in synagogue.
Also, seeing things like a synagogue, the study hall of a yeshiva, the Torah scrolls in the ark holding the Torahs, all bring a holy, healing light to the eyes. (Pele Yoetz on Seeing; see also Writings of Rabbi Pinchus from Pelachek, student of the Gra)
Looking at the two Hebrew letters of "shin" embossed on the Tefillin of the head before one puts them on is good for the eyes and the faculty of "Daat." (Ben Yehoyeda, Shabbat 118)
Looking at one's Rabbi, at a Torah Sage, and at the pure, holy face of a Tzaddik, is a rectification for the eyes. This is especially true when one sees them on Shabbat and Festivals. (Reshit Chochmah)