Medically reviewed by Christine L. Larsen, MD Medications, trauma, and medical conditions can lead to abnormally small pupils ...

Cones work in bright light and register detail ... One consequence of having extremely light sensitive eyes, is that they must be adequately protected during the day. Some animals accomplish ...

Leveraging your hardwired biology in this way is the most powerful way to improve your sleep. Just one more reason why your ...

with long hours of bright light in the summer and almost total darkness in winter. One theory is that in the winter, pressure inside the animal's eye builds due to the effort of keeping the pupils ...

The first thing I realised when I started using the CurrentBody Skin LED Eye Perfector was that the lights are extremely bright. I wouldn’t say I have sensitive eyes, but I found that I needed ...