According to a recent study, when the surface temperature of the eye and eyelids drops to 86 degrees Fahrenheit (30 degrees Celsius) this could cause or worsen dry eye. The cold temps outside your body cause the oily substance secreted by lid glands to become too thick to spread properly onto the eye surface.
Macular degeneration, also known as age-related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred or no vision in the center of the visual field. Early on there are often no symptoms.
For the wet form of macular degeneration, injections of Macugen, Lucentis, Avastin or Eylea are made directly into the eye. The above-mentioned cancer drug Avastin is considerably less expensive and appears to produce similar results in macular degeneration treatment, though it is not FDA-approved for this use.