Are the eyes healthy looking? Inflammed, or reddened conjunctiva is often blamed on Vitamin A deficiency. Whether or not that's always the case is debatable, however if that is the problem, corrected diet will fix the it.
You can also have a close look into the pupil and cornea to inspect for corneal damage, debris, or defect within the globe. Not that you'll have an ophthalmoscope or will be able to do much if you find anything, but it's something to do on the weekend

Ian