Most kittens start to open their eyes between about 2 and 16 days after birth, with many having both eyes at least partly open by around 10–14 days. Their vision then continues to develop, and by about 3 weeks old they can usually focus with both eyes, though their sight is still immature.

How Long Does It Take for a Kitten to Open Its Eyes?

Quick Scoop

  • Most kittens begin to open their eyes sometime in the second week of life (anywhere from day 2 to day 16).
  • By roughly 2 weeks , both eyes are usually open, though they may still look cloudy and very sensitive to light.
  • By about 3 weeks , many kittens can focus and track movement with both eyes.
  • All newborn kittens have blue eyes at first; their permanent color usually appears around 8 weeks.

So, in everyday terms: expect the first peeks sometime in week 1–2, with eyes properly open and working better during week 2–3.

Mini Timeline: Day-by-Day Feel

  • Days 0–3: Eyes tightly closed, no peeking; kittens sleep and nurse almost constantly.
  • Days 4–7: Some kittens may start to show tiny slits or “cracks” at the inner corners of the eyelids.
  • Days 7–10: Many kittens will have one or both eyes partly open; the eyes often look dark blue and a bit cloudy.
  • Days 10–14: For most litters, both eyes are open, but kittens are still very sensitive to bright light and may squint.
  • Around 3 weeks: Kittens can usually focus with both eyes and start coordinating sight with shaky walking and exploring.
  • Around 8 weeks: Eye color typically shifts from baby-blue to the kitten’s adult shade (green, gold, etc.).

Think of it as a slow fade-in effect, not a sudden “eyes closed one day, fully open the next.”

What’s Normal vs. When to Worry

Most variations are totally normal, but there are a few red flags to watch for.

Normal variations

  • One eye opens before the other.
  • Littermates opening on different days.
  • Mild clear moisture as the lids separate.

Call a vet promptly if:

  • Eyes are still completely closed after about 16 days , or only slightly cracked but very swollen.
  • You see yellow/green discharge , crusting that seals the eyes shut again, or a very puffy eyelid.
  • The kitten seems lethargic, not nursing, or cries when you touch near the eyes.

Eye infections in tiny kittens can move fast, so getting treatment early can save their vision.

Gentle Care Tips While You Wait

  • Do not pry the eyes open. The lids need to separate naturally; forcing them can injure the cornea and invite infection.
  • Keep the nesting area clean and softly lit. Bright light can be uncomfortable; dim, calm spaces are best in the early weeks.
  • Let mom do most of the work. The queen’s grooming helps keep the face and eyes clean.
  • If mild crust appears , you can ask a vet about using warm, damp cotton to gently soften and wipe it—never use human eye drops or medications without veterinary guidance.

A simple example: if your kitten is 9 days old and one eye is half open while the other is still closed, that’s usually okay—just watch daily and keep the area clean and quiet.

Tiny FAQ and Current “Forum-Style” Notes

  • “My kitten is 1 week old and eyes are still shut—is that normal?”
    Yes, many kittens won’t start opening until days 7–10, and some take up to day
  • “Is there anything I can do to speed it up?”
    Not really; eye opening is a developmental milestone that follows its own pace. Focus on warmth, nutrition, and cleanliness.
  • “What’s ‘latest’ about this topic?”
    Recent veterinary posts still give the same core window (2–16 days, focus by around 3 weeks, adult eye color around 8 weeks), so the basics haven’t changed even in 2023–2024 articles.

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