This clinical photograph, taken via slit lamp microscopy, displays the anterior segment of a human eye with a focus on corneal pathology. The image reveals diffuse keratic precipitates (KPs) distributed primarily across the central area of the corneal endothelium. These precipitates are characterized by a 'mutton-fat' appearance, manifesting as whitish, waxy, and irregularly shaped inflammatory deposits. Such findings are indicative of granulomatous uveitis, often associated with conditions like Cytomegalovirus (CMV) hypertensive anterior uveitis or sarcoidosis. The slit lamp beam highlights the depth of these deposits on the posterior corneal surface. Additionally, a mild inflammatory reaction is noted within the anterior chamber, though cell and flare are not individually resolvable at this magnification. This visual evidence serves as a critical diagnostic marker for differentiating types of intraocular inflammation and monitoring treatment response in patients with secondary glaucoma or viral uveitis.

A close-up clinical photograph of the anterior segment of a human eye using slit-lamp biomicroscopy. The image demonstrates active acute granulomatous anterior uveitis. Key findings include multiple keratic precipitates (KPs) on the posterior corneal surface (retrodescemetic area), indicated by white arrows. These precipitates vary in morphology from small granular spots to larger, more opaque deposits. The distribution is localized across the lower portion of the corneal endothelium, which is characteristic of inflammatory cellular accumulation in the anterior chamber. The visual evidence of these 'mutton-fat' style precipitates serves as a hallmark for granulomatous inflammation, often associated with systemic conditions such as sarcoidosis or tuberculosis. The image also displays typical slit-lamp lighting effects, including corneal reflections and a visible beam showing the depth of the anterior chamber.

Clinical photograph utilizing slit-lamp biomicroscopy of the right (OD) and left (OS) eyes, demonstrating a granulomatous anterior uveitis. The images focus on the corneal endothelium and anterior chamber, employing a narrow slit beam to assess transparency and structural integrity. Notable pathology includes multiple large, waxy, 'mutton-fat' keratic precipitates (KPs) distributed primarily across the inferior corneal endothelium. These precipitates are variable in size and cause visible light scattering as the slit beam passes through the corneal layers. The presence of these large inflammatory cell aggregates is a hallmark clinical sign of granulomatous inflammation, often associated with systemic conditions such as sarcoidosis, tuberculosis, or specific parasitic infections. The surrounding cornea remains relatively clear, but the inferior concentration of KPs suggests a typical Arlt's triangle distribution. This visual material is intended for ophthalmology education, focusing on the diagnostic features of inflammatory eye disease and the technique of slit-lamp examination.

Multi-modal ophthalmic imaging of a patient with granulomatous uveitis and posterior segment involvement. (A) Slit-lamp anterior segment photograph showing numerous mutton-fat keratic precipitates on the corneal endothelium, a fibrinous pupillary membrane, and 360-degree posterior synechiae. (B) Wide-field fundus photography showing yellow-white macular infiltrates and prominent vitreous haze. (C) Spectral-domain optical coherence tomography (SD-OCT) cross-section demonstrating intraretinal hyperreflectivity, disorganization of retinal layers, and retinal pigment epithelium (RPE) elevation; a white double-headed arrow highlights significant choroidal thickening beneath the active lesion. (D) Wide-field fluorescein angiography (FA) illustrating hyperfluorescence of the active macular lesion and late-phase optic disc leakage. The images collectively demonstrate a severe inflammatory process, such as ocular toxoplasmosis or sarcoidosis, characterized by both anterior chamber reaction and active chorioretinitis.