Runway lights or landing light???
I landed without the landing light many times - during and after PPL training, but I would not attempt an approach and landing into a black hole with only a beacon to indicate the approximate location of a runway...
We had two factors on our side. A full moon, and the GPS / OBS button. Three if you count the Jack Henry hanger with the door wide open flooding the front of the runway with light. That did more harm to night vision in my opinion than helping with approach.
Good news is I got the night work in and don't plan on flying at night. Risk of not seeing emergency landing spots is just not worth it to me. Maybe I will change that opinion with experience, but I have little of that right now.