Frequent eye blinking or twitching is usually harmless and often caused by factors like stress, tiredness, too much screen time, dry eyes, or excess caffeine intake. You can manage it by getting enough sleep, reducing screen exposure, taking regular eye breaks, and cutting down on tea or coffee. Using lubricating eye drops may also help if dryness is present. However, if the twitching continues for a long time or worsens, consult an eye specialist for proper evaluation.