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Principle of cryotherapy Art by @mahuness www.ophthalmobytes.com #ophthalmology #ophthal #doctor #health #medical #vision #education #optometry #medicalstudent #optometrist #medicine #eye #ophtho #ophthalmologist #ophthalmo #med #medicaleducation #ophthalmologyresident #ophthalmologyresidency #medicaldoctor #doc #apaoyo #medicine #cryotherapy #retina #retinalbreak #retinaldetachment
𝘞𝘩𝘪𝘵𝘦 𝘞𝘪𝘵𝘩𝘰𝘶𝘵 𝘗𝘳𝘦𝘴𝘴𝘶𝘳𝘦 Incidence increases with age and increased axial length 𝐀𝐩𝐩𝐞𝐚𝐫𝐚𝐧𝐜𝐞: ● Translucent white- gray appearance of the equator/ peripheral retina seen without scleral depression ● Bilateral, Maybe circumferential ● Bounded posteriorly by reddish brown line ● Sharply demarcated margins ● Misdiagnosed as retinal detachment/retinoschisis ● Scleral indentation reveals that retina is opposed to underlying RPE ● May have
Posterior Vitreous Detachment It is a separation of the posterior vitreous cortex from the neurosensory retina - the vitreous collapses anteriorly towards the vitreous base. Initially there is liquefaction and syneresis → rupture in the posterior hyaloid → liquified vitreous flows out → separates the posterior hyaloid from the retina Begins as a partial PVD at the perifoveal region → progresses to optic disc and formation of Weiss ring Vitreous traction at firm sites of adhes
