Especificamente, a PIO e determinada pela producao, circulacao e drenagem do humor aquoso, pelo fluxo trabecular e uveoscleral e ainda pela pressao venosa episcleral
(Rufer e colaboradores, 2013).
In numerous studies, the increase in episcleral
venous pressure (EVP) that occurs when lying down was proposed as an explanation of this change in IOP.
The canal communicates directly with the episcleral
On complete ocular examination, mild conjunctival hyperemia and episcleral
injection were noted, with moderate aqueous flare, corneal edema and iridal hyperemia (rubeosis iridis) consistent with anterior uveitis, and 5 small air bubbles (Fig IB).
 Possible explanations for these changes include alteration in episcleral
venous pressure/ aqueous outflow, diminishing scleral rigidity, and systemic acidosis encountered during pregnancy.
On performing an examination, he had proptosis, periorbital puffiness, dilated episcleral
vessels, sluggish pupillary reflex, external ophthalmoplegia, and diminished vision.
In addition to anti-inflammatory effect, cross-linked sodium hyaluronate gel may inhibit the postoperative fibrosis and scar formation by its space-occupying property through mechanically separating the subconjunctival and episcleral
The mechanism of IOP reduction in the NPDS is complex and involves subconjunctival bleb, intrascleral bleb, suprachoroidal outflow, and episcleral
vein outflow of aqueous from Schlemm's canal [14, 15].
Ologen is a three-dimensional porous collagen-glycosaminoglycan copolymer, taken from the matrix of porcine collagen, helps the reorganization of subconjunctival scar formation by separating the subconjunctival and episcleral
tissues and inducing fibroblasts and myofibroblasts to grow in the structure after surgical excision of pterygium.
Preclinical and clinical studies have also demonstrated that Rhopressa lowers episcleral
venous pressure, which contributes approximately half of IOP in healthy subjects.
The four corners of the graft were anchored with episcleral
bites to maintain position.
Elevated IOP provoked by episcleral
vein cauterization also increased this survival pathway .