WEBVTT 00:00.000 --> 00:02.700 By 26 weeks the eyes produce tears. 00:06.533 --> 00:11.833 The pupils respond to light as early as 27 weeks. 00:11.867 --> 00:14.133 This response regulates the amount of light 00:14.167 --> 00:18.067 reaching the retina throughout life.