Ser Duncan the Tall does not canonically lose an eye in either the original Dunk & Egg novellas or in the established book lore of A Song of Ice and Fire.

Quick answer

In the books and current official backstory, Ser Duncan the Tall is never described as one‑eyed, nor is there any confirmed event where he loses an eye. If a recent episode or adaptation hinted at eye damage, that is either:

  • A dramatic, visual near‑death beat.
  • Or something that has not (yet) been confirmed to result in permanent blindness or the loss of an eye.

So, as far as canon source material goes: no, Ser Duncan does not lose his eye. Any “dead eye” or lifeless‑looking eye you may have seen is an interpretive or speculative element, not a firmly established fate.

Mini‑sections

1. What happens to his eye on the show?

Recent discussion threads about the new Ser Duncan show talk about how, during the big fight, Dunk looks dead on the ground with only one eye open and “showing no life,” followed by a sudden gasp and revival. Some fans read this as a hint of divine intervention rather than a literal, permanent eye injury.

Key points from those discussions:

  • Viewers note he appears lifeless, including in the eyes, and then suddenly breathes again.
  • Theories tie this to the Seven (especially the Mother) rather than to a lasting physical maiming.
  • No one cites an explicit line saying “he lost his eye” or “he’s now one‑eyed”; the talk is more about symbolism, resurrection vibes, and battle trauma.

So the on‑screen portrayal seems to use his eye as a visual symbol of “between life and death,” not as a confirmed, permanent eye loss.

2. What do the books say?

In the novellas by George R. R. Martin:

  • Dunk is a tall hedge knight of humble origin who becomes Ser Duncan the Tall.
  • We hear about scars, hardship, and eventually his legendary status as Lord Commander of the Kingsguard, but never about him missing an eye.
  • Later book characters who reference him also never mention him as one‑eyed or otherwise facially disfigured in that particular way.

Given how often missing eyes are mentioned for other characters in this universe, that silence is strong evidence that he does not canonically lose one.

3. Why the confusion?

There are a few reasons fans ask “does Ser Duncan lose his eye”:

  • The franchise has lots of brutal eye injuries, so people expect similar things from new spin‑offs.
  • The show’s fight staging makes one of Dunk’s eyes look lifeless, prompting speculation about a symbolic death and rebirth.
  • Fans are wary of adaptations changing details from the relatively short, tightly written source material and are watching closely for any big deviations.

Right now, though, that speculation hasn’t turned into a clear, confirmed maiming on screen or in any official description.

4. Likely direction going forward

Unless future episodes explicitly show the eye being lost, bandaged long‑term, or referenced as damaged, the safest reading is:

  • The scene was about near‑death and miracle‑style survival, not permanent eye loss.
  • Canon Dunk (in text) keeps both eyes.

If the show ever does decide to have him lose an eye, that would be a change from book canon , not something drawn from the existing novellas. TL;DR: In the original Dunk & Egg stories and current official lore, Ser Duncan the Tall does not lose an eye; any show hints so far are symbolic or speculative, not confirmed permanent blindness.

Information gathered from public forums or data available on the internet and portrayed here.