4/16/2023 0 Comments Pellucid definition![]() (1) Ofcom will conduct research, such as mystery shopping, to assess the transparency of contractual information given to customers by providers at the point of sale".(a.) Admitting the passage of light open porous as, a transparent veil.(a.) Having the property of transmitting rays of light, so that bodies can be distinctly seen through pervious to light diaphanous pellucid as, transparent glass a transparent diamond - opposed to opaque.(20) American ophthalmologists are generally not familiar with the condition because most of the literature concerning pellucid degeneration is European.(19) The decreased KS staining was not localized in stromal scar tissue found in the keratoconus and pellucid marginal degeneration corneas.(18) The ocular lens somehow remains pellucid despite bombardment by ultraviolet radiation and endogenous hydrogen peroxide (present in the humoral fluids which bathe this tissue).(17) We believe that penetrating keratoplasty offers an excellent surgical result for patients with pellucid marginal corneal degeneration.(16) Monoclonal antibody against keratan sulfate (KS) was used for immunofluorescent staining of sections of human corneas from 8 normal eyes, 19 with keratoconus, 4 with pellucid marginal degeneration, 5 with primary macular corneal dystrophy, and 1 with recurrent macular corneal dystrophy.(15) This article reports a case of bilateral corneal pellucid marginal degeneration.(14) Dissolution of the pellucid membrane by brief ATP treatment reveals a zygotic surface which changes from day to day.(13) Quantitation of relative staining intensity found keratoconus and pellucid marginal degeneration corneas to be 49% and 40% as intensely stained, respectively, as normal corneas, a statistically significant decrease (P less than 0.01).(12) Crescent-shaped, deep corneal scars were observed in seven (39%) of 18 patients with pellucid marginal corneal degeneration.(11) When idiopathic peripheral corneal thinning remains clear, it is regarded as pellucid degeneration vascularization, scarring, and lipid keratopathy are regarded as Terrien's marginal degeneration.(10) Five eyes in four patients with pellucid marginal corneal degeneration were treated by lamellar crescentic resection of the thinned area inferiorly.(9) The morphologic changes with age concern the height of the 3rd ventricle, the extension of the pellucid septum and the stereotaxic topography.(8) There were 53 patients with keratoconus, 5 with pellucid marginal corneal degeneration, 2 with keratoglobus, and 1 with superior corneal thinning.(7) A successful corneal wedge resection was performed to correct the visual impairment in the left eye of a 30-year-old male who suffered from bilateral pellucid marginal degeneration.(6) Pellucid marginal degeneration of the cornea is a bilateral, clear, inferior, peripheral corneal-thinning disorder.(5) Follicles were classified on the basis of the number of layers of follicle cells, the presence and degree of development of the zone pellucide, and the presence of an antrum.(4) Pellucid marginal corneal degeneration is a bilateral disease characterized by a narrow band of corneal thinning localized 1-2 mm from the inferior limbus.(3) We performed central pachymetry on two patients with pellucid and Terrien's corneal marginal degeneration with mean central corneal thicknesses of.(2) Our computer-based corneal topography analysis system was used to study the keratoscope photographs (keratograms) from two patients with classic pellucid marginal degeneration and a third patient with no inferior corneal thinning, whose keratoscope mire pattern was suggestive of the condition.(1) Three patients had pellucid marginal corneal degeneration complicated by corneal edema. ![]() (a.) Transparent clear limpid translucent not opaque. ![]()
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