Lack of effective anti-flicker (PWM) solutions in high-end iPhone displays and impact on user health.

I am writing to formally express my dissatisfaction regarding the display technology currently employed in the latest iPhone iterations, including the most recent iPhone 17. As a loyal Apple ecosystem user since the iPhone 3G, I have consistently updated my devices; however, I am now effectively "trapped" using the iPhone 11 due to its IPS LCD screen.

The transition to OLED/AMOLED panels has introduced a significant barrier for users sensitive to Pulse Width Modulation (PWM). Despite the premium positioning of your products, the "flicker" associated with these displays causes me severe nausea, headaches, and physical discomfort. While I acknowledge that the iPhone 17 introduced a PWM toggle, its efficacy is negligible in practical use compared to competitors.

Key Points of Concern:

• Comparative Disadvantage: Competitors such as Xiaomi (with their "Anti-flicker" tool) and other manufacturers have successfully implemented DC Dimming or high-frequency PWM dimming to mitigate these health issues.
• Health Impact: There is growing evidence that long-term exposure to low-frequency modulation contributes to eye strain and the acceleration of myopia.
• Market Neglect: Approximately 10% of the global population suffers from some degree of PWM sensitivity. By not providing a robust hardware or software solution, Apple is effectively alienating a significant portion of its professional user base.

I urge Apple to prioritize "Eye Care" features that go beyond True Tone and Night Shift. We require a functional solution that eliminates or significantly reduces flicker to make these premium devices usable for everyone.

I look forward to seeing this issue addressed in future software updates or hardware iterations.

Sincerely,