The time it takes for a newborn puppy to open its eyes varies from person to person, but is generally 14-21 days after birth. Every puppy is different, though, depending on its breed, growing environment, and care. If it is more than 21 days and the puppy's eyes are still closed, it may be necessary to seek professional help from a veterinarian. 
While waiting for the puppy to open its eyes, the owner can adopt some reasonable care methods. First of all, maintaining the right ambient temperature is key in case the puppy catches a cold. If the indoor temperature is on the low side, consider using an insulated lamp or electric blanket. It is also important to keep the kennel clean and tidy, as well as to clean up excrement and dirt regularly, as well as change the urine pads and wash the kennel. Feeding is also a big point. Puppies need adequate nutrition and hydration. You can use special pet milk powder or goat milk powder, diluted according to the proportion on the instructions and fed. Remember to make sure your puppy drinks enough water and warms the milk to a suitable temperature before feeding. 
In addition to the diet, the owner also needs to pay attention to the puppy's physical condition. Check the eyes, nose, ears, and feces for normalcy. If there is any abnormality, you should seek help from a veterinarian in time. At the same time, it is also necessary to weigh the puppy regularly and record its growth, so that problems can be detected and dealt with in time. During eye opening, puppies may experience discomfort due to light and sound. Therefore, it is necessary to give them a quiet and dark environment to avoid overstimulation and interference. It is also important to keep an eye on the puppy's mood changes, and if there is a prolonged period of restlessness or abnormal behavior, it should be dealt with promptly. 
After the puppy opens its eyes, the owner still needs to take care of it. Keep the indoor environment clean and tidy, and clean the kennel and surrounding areas regularly. Bathe your puppy regularly, groom and trim its nails to maintain its physical hygiene and prevent injury. When puppies begin to explore their surroundings, take care of them and prevent them from coming into contact with dangerous objects and toxic substances. As puppies are curious and prone to ingestion or contact with harmful objects, extra caution is required. In terms of training, simple bowel movements and eating training can be started after opening the eyes. Feed and defecate training at a fixed time and place to gradually develop good habits. At the same time, be careful to treat your puppy gently and patiently, and not overly punish or harshly scold them. In addition to training, owners also need to pay attention to the emotional needs of puppies, give them enough attention and love, interact and play with them, and establish intimate relationships. Through interaction and communication with the owner, the puppy can better adapt to the new environment and grow up healthily.