Stokes's vision began to fail as agonising snow blindness
In addition to avalanches, residents had to avoid snow blindness
, frostbite, and traveling even short distances in very deep snow.
Above, right, with message from home at the top BUSINESSMAN CLIMBER TWICE DODGED DEATH BUSINESSMAN Neil McDonald risked his life on Everest to save a fellow climber who was suffering snow blindness
nSunscreen and sunglasses are other necessities, especially above the tree line where sun and snow combined can cause snow blindness
Inadequate eye protection can lead to photokeratitis, or snow blindness
, which is an extremely painful condition.
He said photokeratitis, or snow blindness
, occurs when sun kills the outer layers of the cornea, the clear part at the front of the eyeball.
It can create what we call snow blindness
for the customer -- meaning they have seen so much they can't remember the distinctive features of one gown from another, or they just get exhausted.
Amongst other things, Parker will pack polarised goggles to protect him from snow blindness
and an insulated jacket which has been tested to keep him warm and dry in temperatures as low as -60*C.
Suffering from increasing snow blindness
and frostbite, he amputated nine of his toes with a pocket knife, fearing that gangrene was spreading through his body.
Bonita, from Wokingham in Berkshire, risked frostbite, hypothermia and snow blindness
when she became the youngest British woman to reach the summit of Mount Everest.
Peter was perfectly coherent at this time and calmly explained that the condition was not snow blindness
as he had no pain and he recognised the blindness from a previous episode.
Met Office spokesman John Hammond said accidents early in the day in adverse weather conditions are common, adding: "This snow blindness
can be a problem at this time of year when people are driving to work and the sun is bright but low in the sky.
The cornea of the eye is more vulnerable to UV light than skin and tends to suffer such acute disorders as snow blindness
, in which the cornea or the conjunctiva is inflamed, and even cataracts, or clouded lenses, if such blindness is repeated, Sasaki warns, calling for the use of goggles rather than sunglasses to protect the eyes.
The native Inuit taught him how to combat snow blindness
and build a shelter.
Suffering snow blindness
on the southern journey on the way back to Cape Evans, he fell into eight crevasses in one 25-minute period.