Here's why you shouldn't worry if your kitten's eyes open a little later:
* Individual Variation: Just like humans, kittens develop at slightly different paces.
* Normal Development: 10 days is well within the typical range for eye opening, so it's nothing to be concerned about.
* Other Signs of Health: Pay attention to other signs of good health in your kitten, like gaining weight, nursing well, and being active.
However, if you're concerned about your kitten's health for any reason, always consult with a veterinarian. They can examine your kitten and determine if any issues are present.