Archived posting to the Leica Users Group, 2013/10/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I hope he's OK now! Surgery was one option for this but never seriously suggested or considered. Thanks, Tina On Wed, Oct 30, 2013 at 6:39 PM, Scott Gregory <scottgregory at mac.com> wrote: > 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. > >>> See http://leica-users.org/mailman/listinfo/lug for more information > >> > >> _______________________________________________ > >> Leica Users Group. > >> See http://leica-users.org/mailman/listinfo/lug for more information > > > > > > -- > > Tina Manley > > http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com > > > > _______________________________________________ > > Leica Users Group. > > See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > -- Tina Manley http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com