Comments on: Eye Pathology: Guess the Dx http://www.mexicomedstudent.com/2007/08/662 Every journey has a pitstop. Welcome to mine. Sat, 24 Oct 2009 23:12:27 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: Eyedoc http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-121402 Eyedoc Wed, 26 Nov 2008 19:57:52 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-121402 A "stye" or more properly a "hordeolum" is an infection of a gland of the eyelids. An external hordeolum is an infection of a gland of zeis. An internal hordeolum is an infection of a meibomian gland. Both are erythematous and tender on palpation. A chalazion is an inflammation of the meibomian glands and can occur following an acute infection. The lid is not warm and erythematous and the lesion is non-tender on palpation. The inflammation is in the form of a granuloma, can become chronic and may require surgical incision and drainage. In this case, the correct diagnosis is internal hordeolum. Topical antibiotics are never indicated unless a conjunctivitis is present and oral antibiotics are very seldom indicated with the exception of tetracylines which alter meibomian secretions and help to control lid inflammation by reducing tissue metalloproteinases. Topical corticosteroids are of no use in either case. Hot compresses are treatment of choice for both hordeola and chalazia. A “stye” or more properly a “hordeolum” is an infection of a gland of the eyelids. An external hordeolum is an infection of a gland of zeis. An internal hordeolum is an infection of a meibomian gland. Both are erythematous and tender on palpation. A chalazion is an inflammation of the meibomian glands and can occur following an acute infection. The lid is not warm and erythematous and the lesion is non-tender on palpation. The inflammation is in the form of a granuloma, can become chronic and may require surgical incision and drainage. In this case, the correct diagnosis is internal hordeolum. Topical antibiotics are never indicated unless a conjunctivitis is present and oral antibiotics are very seldom indicated with the exception of tetracylines which alter meibomian secretions and help to control lid inflammation by reducing tissue metalloproteinases. Topical corticosteroids are of no use in either case. Hot compresses are treatment of choice for both hordeola and chalazia.

]]> By: enrico http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-63302 enrico Thu, 06 Sep 2007 18:50:57 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-63302 scalpel: Well, I considered the definition of a stye to be simply a generic, bacterial eyelid soft-tissue infection, not necessarily one originating from the sebaceous gland of an eyelash. In that case, I may be wrong. If I may be so bold, I have to say the difference is not academic when you consider that a stye, when ruptured/relieved, will obviously release infectious <em>Staph</em> or what have you into the area, and the risk of re-infection by rubbing, etc. is quite high. Also, pus is not a normal substance for the eye to deal with, and I'm sure this would only exacerbate more itching, irritation, risk of spread, etc. None of these are a concern with an simple chalazion. scalpel: Well, I considered the definition of a stye to be simply a generic, bacterial eyelid soft-tissue infection, not necessarily one originating from the sebaceous gland of an eyelash. In that case, I may be wrong.

If I may be so bold, I have to say the difference is not academic when you consider that a stye, when ruptured/relieved, will obviously release infectious Staph or what have you into the area, and the risk of re-infection by rubbing, etc. is quite high. Also, pus is not a normal substance for the eye to deal with, and I’m sure this would only exacerbate more itching, irritation, risk of spread, etc. None of these are a concern with an simple chalazion.

]]> By: scalpel http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-63012 scalpel Tue, 04 Sep 2007 13:47:02 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-63012 A stye is an infection of a sebaceous gland of the eyelid. A meibomian gland is a specialized form of sebaceous gland. So an infected meibomian gland is in fact a stye.. If it looks like a stye, and the treatment is the same as that for a stye, then the difference seems to be academic. A stye is an infection of a sebaceous gland of the eyelid. A meibomian gland is a specialized form of sebaceous gland. So an infected meibomian gland is in fact a stye..

If it looks like a stye, and the treatment is the same as that for a stye, then the difference seems to be academic.

]]> By: OphthalmologyVideoFan http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-62527 OphthalmologyVideoFan Thu, 30 Aug 2007 23:07:28 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-62527 Hmm ... well written question! Chalazions are very common, and seem to present in so many ways with many confounding factors! If you want to see what a chalazion can look like when it is draining, check out the draining chalazion video at: <a href="http://www.rootatlas.com/wordpress/video/495/draining-chalazion-of-the-eyelid-video/" rel="nofollow">http://www.rootatlas.com/wordpress/video/495/draining-chalazion-of-the-eyelid-video/</a> The video takes a little while to load, but an impressive amount of pus oozes out of this thing. Hmm … well written question! Chalazions are very common, and seem to present in so many ways with many confounding factors! If you want to see what a chalazion can look like when it is draining, check out the draining chalazion video at:
http://www.rootatlas.com/wordpress/video/495/draining-chalazion-of-the-eyelid-video/

The video takes a little while to load, but an impressive amount of pus oozes out of this thing.

]]> By: enrico http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-62452 enrico Thu, 30 Aug 2007 00:18:32 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-62452 Dr. Schwab: of course. Not quite so exotic, though, as you can see. No more comments -- perhaps the pictures are a bit <em>too</em> freaky, like I'm looking at you all like that. ;) My view was just that of my camera lens, and I didn't even have the benefit of seeing myself on the LCD panel. It was a convenient way to play with the 'macro' mode on my camera, though... Dr. Schwab: of course. Not quite so exotic, though, as you can see.

No more comments — perhaps the pictures are a bit too freaky, like I’m looking at you all like that. ;) My view was just that of my camera lens, and I didn’t even have the benefit of seeing myself on the LCD panel. It was a convenient way to play with the ‘macro’ mode on my camera, though…

]]> By: Jon Mikel http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-62258 Jon Mikel Mon, 27 Aug 2007 18:18:04 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-62258 Chalazion (Meibomian gland obstruction)? Chalazion (Meibomian gland obstruction)?

]]> By: Sid Schwab http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-62223 Sid Schwab Mon, 27 Aug 2007 04:34:19 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-62223 Looks like a hordeolum to me. But I'm no eye guy. Too easy. I imagine you have something more exotic up your sleeve. Looks like a hordeolum to me. But I’m no eye guy. Too easy. I imagine you have something more exotic up your sleeve.

]]> By: Celeste http://www.mexicomedstudent.com/2007/08/662/comment-page-1#comment-62044 Celeste Fri, 24 Aug 2007 18:57:05 +0000 http://www.mexicomedstudent.com/2007/08/662#comment-62044 Blocked tear duct. Just a guess, though. Blocked tear duct. Just a guess, though.

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