These muscles are responsible for shrinking and expanding the size of the pupil and iris in order to control the amount of light going into the eye. These muscles also protect the sensitive receptors ...
SINGAPORE – Madam Sng Soh Gek, 76, had a shock in early August 2023 when she realised that there was a dim, blurry spot in the vision of her right eye. She was worried that she would suffer a ...