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.
Macular degeneration destroys cells called retinal pigment epithelium, or RPE, a key component of sharp, detailed central vision. Freeman had the most common form, known as dry macular degeneration. The treatments for dry macular degeneration are really few, if any. There are no approved treatments for macular degeneration, said Dr. Steven Schwartz, an UCLA eye surgeon. Dr. Schwartz modified human embryonic stem cells in the lab and turned them into the RPE cells that were needed. He transplanted those new cells by injection into one of Sue Freeman's eyes.