Juxta-papillary hemangioma in Von-Hippel's disease

Bilateral peripapillary exophytic retinal hemangioblastoma is exceedingly rare. To our knowledge, only one case has been described previously [Darr et al., 1966]. The clinical may resemble chronic papilloedema and a misdiagnosis may be made delaying the institution of appropriate therapy. We recently examind a patient who appeared to have this rare form of Von-Hippel's disease and we report the ophthalmoscopic and fluorescein angiographic findings both before and after argon laser photocoagulation

Vitreous dynamic in cystoid macular edema

Eyes suffering from various conditions, such as aphakia, diabetic retinopathy, peripheral uveitis, branch vein occuluslon, or retinitis pigmentosa, are predisposed to vitreous detachment. When vitreous detachment occurs, the vitreous can remain attached to the macula due to a frim vitreomacular adhesion. This partial posterior vitreous detachment associated with continuous vitreous traction to the macular area can lead to the development of cystoid macular edema. Two types of vitreous traction have been observed: traction with narrow vitreous strand, and traction with broad vitreoretianal adhesion. Another suggested mechanism by which the posterior vitreous can cause cystoid macular edema is vitreous contraction without vitreous detachment, producing tractional forces at sites of firm vitreoretinal adhesions that are located at the optic disc and macula. Cystoid macular edema is often accompanied by leakage from dilated retinal capillaries at the optic disc

Angiofield composite prior to laser photocoagulation

Recently the macular photocoagulation study group, demonstrated a reduction in serious visual loss when exudative macular degeneration is treated with laser photocoagulation. Although on optimized treatmant method has not yet been developed, a large number of patients are daily receiving laser therapy for SRNV using different modalities of treatments. Angiofield composite provides an accurate comparative methodology of data that may be obtained from treatment results employing different photocoagulation techniques. Such a comparative methodology is mandatory to delineate an optimal technique and instrumentation for laser photocoagulation of SRNV

Prognostic value of vitreous biomicroscopic evaluation in eyes with macular pucker

The vitreous in 43 eyes with macular pucker after retinal detachment surgery was studied using the El Bayadi- Kajiura preset lens mounted on a slit lamp. The posterior vitreous was found to be attached in one eye [2%] completely in 29 eves [68%] and partially detached, with residual vitreoretinal adhesion in disc- macula area, in 13 eyes [30%] Eyes with macular pucker and partial posterior vitreous detachment had a significantly higher [P 0.05] incidence of refractive errors of less than or equal to-4 diopters, a higher incidence of dye leakage in the macular area by fluorescein angiography, a shorter time- lapse between retinal detachment surgery and development of macular pucker, and a worse visual outcome than did eyes with complete posterior vitreous detachment