I have one silver marans chick who has been a bit lathargic the past few days and today she has a crusty looking eye. Only one eye is effected and she eats and drinks normal. I have her on medicated chick starter and clean water with a bit of vitamin and electrolite in it. She is on clean pine shavings bedding just as all my chicks have always been. Nothing is defferent from anything I have ever done in the past. I have isolated her in a box to herself now and she has a lamp with a red 40 watt bulb to warm her. Any suggestions would be great. I've never encountered anything like this in all the years I have had chickens and all my other chicks from this hatch are fine so am completely stumped

