al surface. Hence, it is actually possible to distinguish between four grade I, invades the

al surface. Hence, it is actually possible to distinguish between four grade I, invades the corneal surface. Hence, it truly is feasible to distinguish in between 4 grades: grades: grade I, invades thelimbus; grade II, exceeds the limbusthe limbus and approaches the JAK Compound pupillary the corneal corneal limbus; grade II, exceeds and approaches the pupillary location; grade region; grade the pupil; and grade IV, exceeds the pupil. the pupil. III, reaches III, reaches the pupil; and grade IV, exceeds Tan et al. [1] morphologically classified pterygium into three categories: atrophic, Tan et al. [1] morphologically classified pterygium into three categories: atrophic, fleshy, and intermediate. Inside the atrophy category, episcleral vessels under the pterygium fleshy, and intermediate. Inside the atrophy category, episcleral vessels under the pterygium physique are simply distinguished. Inside the fleshy category, pterygium shows a higher thickness body are quickly distinguished. Inside the fleshy category, pterygium shows a higher thickness in order that the episcleral vessels under the physique aren’t visualized. Inside the the intermediate cateso that the episcleral vessels below the body are usually not visualized. In intermediate category, gory, the vessels can bewith difficulty. the vessels is often seen observed with difficulty. Inside the histopathological characterization ofof pterygium, the epithelial tissue does the histopathological characterization pterygium, the epithelial tissue does not present significant variations withwith respect to healthier conjunctiva. It normally shows not present considerable differences respect to wholesome conjunctiva. It normally shows varying degrees of acanthosis or alterations in in keratinization in form of of parakeratosis varying degrees of acanthosis or alterationskeratinization in thethe type parakeratosis or hyperkeratosis. OnOn the contrary, the stromaclassically described as a thickening of the or hyperkeratosis. the contrary, the stroma is is classically described as a thickening of connective tissue, and and it truly is characterized by elastotic alterations inthickness of the subthe connective tissue, it is actually characterized by elastotic alterations inside the the thickness of the epithelial stroma and associated lymphocyte-predominant inflammation (Figure 2) with subepithelial stroma and associated lymphocyte-predominant inflammation (Figure respect to wholesome conjunctiva. Therefore, immature or fragmented elastic fibers are observed fibers with collagen fibers of variable thicknesses and mature-looking lymphocytes with each other with collagen fibers of variable thicknesses and mature-looking lymphocytes totogether with some scattered macrophages the tissue. gether with some scattered macrophages inin the tissue. Within the subepithelial tissue of pterygium, significant regions of extracellular matrix (ECM) with fibrillar and amorphous material could be observed, which are not observed in healthful fibrillar conjunctiva. These areas don’t have an affinity for eosin or for Masson’s trichrome light affinity green dye, thus, discarding their collagenous nature. These places show some ETB Purity & Documentation basophilia some basophilia or appear with out evident staining, and they’re identified determined by elastotic alterations identified on elastotic alterations (Figure two). In the subepithelial tissue, angiogenesis is very evident, and in the stromal (Figure 2). In the subepithelial tissue, angiogenesis is quite evident, and inside the stromal tissue, a big quantity of blood vessels are observed. The lymphatic vessels are also very patent, dilated,