By Alexa Kaczka
The new iPhone 4S from Apple could be helping to improve people's eyesight - or at least maintain it, it has been claimed.
Speaking to Forbes, Dr Vance Thompson, board-certified ophthalmologist, said that the phone's inability to allow users to adjust font size for email summaries could actually be a bonus.
This is because it is important for people to look at text of all different sizes so that eyes can retain their elasticity and the optical organ can stave off the onset of certain vision conditions, the expert pointed out.
He noted that those aged over 40 often lose retina elasticity, but the iPhone's inability to make it easier to focus on text gives their eyes a greater work out and could therefore have a positive effect in the long term.
Marc Weber Tobias, who interviewed Dr Thompson, summarised: "The simple answer to being able to read without special glasses until a later age is to exercise your eyes, which will allow the lens to become thinner or thicker on demand."
by Alexa Kaczka