The human question
Tap, shower, pool and hot-tub water can carry organisms that cause serious corneal infection. The useful question is not whether a health idea sounds impressive, but whether it helps a real person make a safer decision. Culture, disability, cost, care access, medication and the demands of an ordinary week all change what is practical.
What the evidence says
Cleaning systems work only when used as directed; topping off old solution and sleeping in lenses raise risk. That distinction matters because a population average is not a personal forecast. Study design, follow-up, absolute benefit, harms and who was excluded deserve as much attention as a headline result.
A gentle experiment
A gentle experiment: Keep a clean case and backup glasses in your bag. Decide what you will observe before you start, keep the experiment small, and do not confuse discomfort with virtue. A repeatable step usually teaches more than an ambitious plan abandoned after one difficult day.
Where the advice changes
Where the advice changes: Pain, light sensitivity, discharge or sudden blurred vision needs same-day eye care. Symptoms, medicines, pregnancy, disability, eating-disorder history and chronic conditions can all change the safest route. Online education cannot examine or diagnose an individual.
What real life requires
Real life rarely follows a clean before-and-after arc. Improvement may mean fewer hard days, more confidence, a better question for a clinician or the ability to return after a setback. Adaptation is part of good care, not evidence that you failed the plan.