The dog's eyes are also related to its own physical condition. For example, puppies are stronger, develop faster and drink more milk. Usually develop early and open your eyes faster. It is usually possible to open your eyes around the ninth day. Remember not to open the puppy's eyes artificially before it opens. This is because puppies are born without sight and hearing. It is a dark environment when it is in the bitch's stomach. If you open your eyelids rashly, the stimulation of strong light is likely to damage the puppy's eyes.