whay causes a sty on the human eye?
831223
from nasty dirty hands that have had been in contact with another whom has had one
705647
I'm going to guess a stye.  Use warm compresses on the affected eye and wash your hands constantly.  Styes are very contagious.  Contact your eye doctor.  He/She may prescribe a special eye drop for this.
312392
It is a stye.  There are two types of styes.  They are internal and external styes also called hordeolum.  The external stye is the common type that people see along the follicle.  The internal type is less common that the external but still can be common, is found further back from the follicles.  The treatment is typically conservative.  DO NOT TAKE THE ADVICE OF SOME OF THESE PEOPLE ON HERE....DO NOT POP IT!!!  Simple warm wet compresses to the area for 20 min at a time 4-6 times a day will help to get rid of it.  Also some tylenol will help for the pain.  However, if it starts feeling like it is scratching the eye itself or if your vision starts to change then it would be a very good idea to go ahead and see your doctor.  Take care!
808888
Don't squeeze it.  That can give you a much more serious infection.  Keep on with the warm compresses, 2-4x/day for 20 minutes each.  Gently wash the eye with some very mild soap or shampoo once a day (with your eye shut).\n\nOr go to the doctor... it takes about five minutes to treat stys (they gently cut them open to drain them, then give you an antibiotic ointment)
697893
It s an eye disease that causes blindness and can be brought on from a series of different diseases., like diabetes.
479743
(m)\n\nThe cornea is the clear part of the eye. The outer surface of the normal cornea is covered by a thin sheet of tissue called "epithelium". A corneal abscess occurs when bacteria or fungus enter the cornea through an injury in the epithelium. The epithelium may heal too quickly and essentially "seal" the bacteria or fungus inside the cornea. The bacteria or fungus grown within the cornea and from an abscess.\n\n\nfor more details see the following website\n\nhttp://eyeclinicforanimals.com/abscess.php
808292
It is an infection of the eyelid that is very common. This is from a Spanish medical dictionary http://www.pediatraldia.cl/orzuelos.htm\n\nIf you had asked the question in English you would have gotten more replies.
373942
Fusarium keratitis is bascially a fungal infection of the cornea (the clear front of the eye).  The fungus causes large ulcers right over the pupil, which are very difficult to treat.  As the ulcers heal, the cornea scars and becomes opaque (leading to blindness).  Patients usually have the option of a corneal transplant to restore vision to the affected eye.
121456
Various possibilities (among others):\n\n1) Could be psychological\n2) Could be allergic \n3) There may really be something in your eye - not always can you see foreign objects lodged in the eye\n4) You might have touched your eye with a dirty and/or sweaty figure or something\n5) It maybe irritation/complications due to contact lens use\n6) It maybe the onset of a Herpes Virus infection\n7) It maybe the onset of a case of conjunctivitis\n8) You maybe needing glasses and/or eye treatment\n\nBottom line:\n\nTry washing/rinsing your eyes with clean water for sometime, but only after having washed and rinsed your hands thoroughly first.  Then make sure you dry your eyes with a fresh clean towel.    If the sensation continues, seek medical care (i.e. go for an Eye Checkup/Exam) – never self medicate.
1152463
the swelling could be caused by any number of medical conditions, but the most common causes are either pinkeye(conjuctivitis) or having a sty on your eye. If your eye is red and matted together when you wake up, this could be pinkeye. If this is the case you need to contact your doctor and have it checked out. If it is a sty, there is really not much you can do, except put warm compresses on it.
1115042
You are risking your eyesight by overwearing your contact lenses. you may get lucky this time, next time or forever but why take the risk. You can get a corneal ulcer that can cause severe pain, infection and even blindness. Contacts are a medical device and should be taken seriously. Your optometrist should read you the riot act every time you see them. you are risking your sight, knucklehead.
465168
It is an inflammation of the conjunctiva(the outermost layer of the eye and the inner surface of the eyelids), often due to infection. It may also be caused by adenoviruses.
747719
poke in the eye, std other than HIV, eternal damnation.
1040597
A stye is an infection of the follicle of your eyelash,you probably rubbed your eye with a nono-too -clean finger.\nCheck for the eyelash that is infected....it will be the most painful,get a pair of tweezers and pull it out!\nThen wash your entire face with warm water and soap,take 2 aspirin ----(they are anti-inflammatory and help to reduce the swelling) ---and go to sleep.\nGuaranteed to work in less than 36 hours.
4469
Is it actual blood dripping out of your eye or just redness?  Redness can be caused by a number of things (bacteria, viruses, allergies, irritation, etc).  See an optometrist or ophthalmologist so that it can be treated appropriately.
779182
Conjunctivitis (commonly called "pinkeye" in the USA and "Madras Eye" in India) is an inflammation of the conjunctiva (the outermost layer of the eye and the inner surface of the eyelids), often due to infection. It may also be caused by adenoviruses.\n\nViral conjunctivitis is spread by aerosol or contact of a variety of contagious viruses, including many that cause the common cold, so that it is often associated with upper respiratory tract symptoms. Clusters of cases have been due to transfer from inadequately-sterilised ophthalmic instruments that make contact with the eye\n\nAllergic conjunctivitis occurs more frequently among those with allergic conditions, with the symptoms having a seasonal correlation. It can also be caused by allergies to substances such as cosmetics, perfume, protein deposits on contact lenses, or drugs. It usually affects both eyes, and is accompanied by swollen eyelids.\n\nBacterial conjunctivitis is most often caused by pyogenic bacteria such as Staphylococcus or Streptococcus from the patient's own skin or respiratory flora. Others are due to infection from the environment (e.g. insect-borne), from other people (usually by touch - especially in children), but occasionally via eye makeup or facial lotions. An example of this is conjunctivitis due to the bacteria Haemophilus influenzae biogroup aegyptius.\n\nIrritant, toxic, thermal and chemical conjunctivitis are associated with exposure to the specific agents, such as flame burns, irritant plant saps, irritant gases (e.g., chlorine or hydrochloric acid ('pool acid') fumes), natural toxins (e.g., ricin picked up by handling castor oil bean necklaces), or splash injury from an enormous variety of industrial chemicals, the most dangerous being strongly alkaline materials.\n\nXerophthalmia is a term that usually implies a destructive dryness of the conjunctival epithelium due to dietary vitamin A deficiency—a condition virtually forgotten in developed countries, but still causing much damage in developing countries. Other forms of dry eye are associated with aging, poor lid closure, scarring from previous injury, or autoimmune diseases such as rheumatoid arthritis, and these can all cause chronic conjunctivitis.
935208
well it probably be an infection in your cornea