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persistent pupillary membrane☺
http://en.wikipedia.org/wiki/Persistent_pupillary_...
Persistent pupillary membrane (PPM) is a condition of the eye involving remnants of a fetal membrane that persist as strands of tissue crossing the pupil. The pupillary membrane in mammals exists in the fetus as a source of blood supply for the lens. It normally atrophies from the time of birth to the age of four to eight weeks.[1] PPM occurs when this atrophy is incomplete. It generally does not cause any symptoms. The strands can connect to the cornea or lens, but most commonly to other parts of the iris. Attachment to the cornea can cause small corneal opacities, while attachment to the lens can cause small cataracts. Using topical atropine to dilate the pupil may help break down PPMs.
In dogs, PPM is inherited in the Basenji but can occur in other breeds such as the Pembroke Welsh Corgi, Chow Chow, Mastiff, and English Cocker Spaniel.[1] It is also rarely seen in cats, horses, and cattle.
http://imgur.com/gallery/h7yn1
Please consider the environment before printing this message, 50% of the above is useless!-
Re: persistent pupillary membrane☺Scritto daaltgutente che non utieneil 2013-10-17 13:40:13.0 alle 2013-10-17 13:40:13.0Trollate totali: 11540>
> Persistent pupillary membrane (PPM) is a condition of the eye involving remnants of a fetal membrane that persist as strands of tissue crossing the pupil. The pupillary membrane in mammals exists in the fetus as a source of blood supply for the lens. It normally atrophies from the time of birth to the age of four to eight weeks.[1] PPM occurs when this atrophy is incomplete. It generally does not cause any symptoms. The strands can connect to the cornea or lens, but most commonly to other parts of the iris. Attachment to the cornea can cause small corneal opacities, while attachment to the lens can cause small cataracts. Using topical atropine to dilate the pupil may help break down PPMs.
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> In dogs, PPM is inherited in the Basenji but can occur in other breeds such as the Pembroke Welsh Corgi, Chow Chow, Mastiff, and English Cocker Spaniel.[1] It is also rarely seen in cats, horses, and cattle.
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> http://imgur.com/gallery/h7yn1
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Wow, gli occhi del gatto sono di una bellezza straordinariamente inquietante!
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Re: persistent pupillary membraneScritto daNon Autenticatoil 2013-10-17 19:31:28.0 alle 2013-10-17 19:31:28.0Scritto da: dada216
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> Persistent pupillary membrane (PPM) is a condition of the eye involving remnants of a fetal membrane that persist as strands of tissue crossing the pupil. The pupillary membrane in mammals exists in the fetus as a source of blood supply for the lens. It normally atrophies from the time of birth to the age of four to eight weeks.[1] PPM occurs when this atrophy is incomplete. It generally does not cause any symptoms. The strands can connect to the cornea or lens, but most commonly to other parts of the iris. Attachment to the cornea can cause small corneal opacities, while attachment to the lens can cause small cataracts. Using topical atropine to dilate the pupil may help break down PPMs.
>
> In dogs, PPM is inherited in the Basenji but can occur in other breeds such as the Pembroke Welsh Corgi, Chow Chow, Mastiff, and English Cocker Spaniel.[1] It is also rarely seen in cats, horses, and cattle.
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> http://imgur.com/gallery/h7yn1
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ecco come faceva alessandro magno ad avere un occhio azzurro e uno nero
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