[Leica] EYES!

[scottgregory at mac.com (Scott Gregory)]

Thanks Tina for the explanation. A fully detached retina is serious that's 
why I asked. My son had that happen 3 years ago and had to undergo 5 
surgeries :(
Scott

> On Oct 30, 2013, at 4:19 PM, Tina Manley <images at comporium.net> wrote:
> 
> I'm probably describing it wrong.  It is a membrane which has detached from
> the retina.  I saw a specialist about it three years ago and they were
> waiting for it to completely detach because there is a danger it will tear
> the macula as it detaches.  It's good news that has detached without
> tearing.  From Wiki:
> 
> A *posterior vitreous detachment (PVD)* is a condition of the eye in which
> the vitreous membrane <http://en.wikipedia.org/wiki/Vitreous_membrane>
> separates
> from the retina <http://en.wikipedia.org/wiki/Retina>. It refers to the
> separation of the posterior hyaloid membrane from the retina anywhere
> posterior to the vitreous base 
> <http://en.wikipedia.org/wiki/Vitreous_base> (a
> 3-4mm wide attachment to the ora
> serrata<http://en.wikipedia.org/wiki/Ora_serrata>.)
> Synchysis: there is associated vitreous liquefaction. Syneresis: there is
> collapse of the vitreous due to collection of synchytic fluid between the
> posterior hyaloid membrane and the internal limiting membrane of the 
> retina.
> 
> Broadly speaking, the condition is common for older adults and over 75% of
> those over the age of 65 develop it. Although less common among people in
> their 40s or 50s, the condition is not rare for those individuals. Some
> research has found that the condition is more common among
> women.[1]<http://en.wikipedia.org/wiki/Posterior_vitreous_detachment#cite_note-1>
> [2] 
> <http://en.wikipedia.org/wiki/Posterior_vitreous_detachment#cite_note-2>
> 
> The vitreous <http://en.wikipedia.org/wiki/Vitreous_humour> 
> (Latin="glassy")
> is a gel which fills the eye <http://en.wikipedia.org/wiki/Human_eye> 
> behind
> the lens <http://en.wikipedia.org/wiki/Lens_(anatomy)>. Between it and the
> retina <http://en.wikipedia.org/wiki/Retina> is the vitreous
> membrane<http://en.wikipedia.org/wiki/Vitreous_membrane>.
> Over time the vitreous changes, shrinking and developing pockets of
> liquefaction, similar to the way a
> gelatin<http://en.wikipedia.org/wiki/Gelatin> dessert
> shrinks, or detaches, from the edge of a pan over time. At some stage the
> vitreous membrane may peel away from the retina. This is usually a sudden
> event, but may also occur slowly over months.
> 
> Age and refractive error play a role in determining the onset of PVD in a
> healthy person. PVD is rare in
> emmetropic<http://en.wikipedia.org/wiki/Emmetropic> people
> under the age of 40 years, and increases with age to 86% in the 90s.
> Several studies have found a broad range of incidence of PVD, from 20% of
> autopsy cases to 57% in a more elderly population of patients (average age
> was 83.4 years).
> 
> People with myopia <http://en.wikipedia.org/wiki/Myopia> (nearsightedness)
> greater than 6 diopters <http://en.wikipedia.org/wiki/Diopters> are at
> higher risk of PVD at all ages. Posterior vitreous detachment does not
> directly threaten vision. Even so, it is of increasing interest because the
> interaction between the vitreous body and the retina might play a decisive
> role in the development of major pathologic vitreoretinal conditions, such
> as epiretinal membrane <http://en.wikipedia.org/wiki/Epiretinal_membrane>.
> 
> 
> Probably more than you want to know!
> 
> 
> Tina
> 
> 
>> On Wed, Oct 30, 2013 at 4:08 PM, Scott Gregory <scottgregory at mac.com> 
>> wrote:
>> 
>> Tina I thought a detached retina meant one cannot see??
>> 
>> Scott
>> 
>>> On Oct 30, 2013, at 3:58 PM, Tina Manley <images at comporium.net> wrote:
>>> 
>>> Great news from the eye doctor!  The reason my glasses don't work any
>> more
>>> is because they are way too strong.  My eyes have gotten better ;-)  In
>>> fact, I can probably do without glasses for focusing my Leica because my
>>> left eye only needs -.75 and I think the Leica already has -.5 built in,
>>> right?  I'm going to try it anyway.  As soon as the eye drops wear off.
>> I
>>> can't see anything right now!
>>> 
>>> The detaching retina which was pulling on the macular part of my eye has
>>> completely detached, which is a good thing.  It's not stretching anymore
>>> and there is no danger of a hole in the macula.
>>> 
>>> New glasses on order but won't be ready until after the trip to Italy.
>>> 
>>> Thanks for all of the advice!
>>> 
>>> 
>>> Tina
>>> 
>>> --
>>> Tina Manley
>>> http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com
>>> 
>>> _______________________________________________
>>> Leica Users Group.
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>> 
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> 
> 
> -- 
> Tina Manley
> http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com
> 
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