Patient Information

Choroidal metastasis refers to a secondary tumour localisation within the choroid, the vascular membrane situated between the retina and the sclera of the eye. Dr Julien Gozlan, ophthalmologist surgeon specialising in the retina in Paris 16, manages patients presenting with this ocular condition, which is often an indicator of a distant cancer. This article details the mechanisms of choroidal metastasis, the symptoms that should raise concern, the essential diagnostic examinations and current therapeutic options, presented in a reassuring and educational approach.

A choroidal naevus is a benign pigmented lesion located at the back of the eye, often discovered incidentally during a routine ophthalmological examination. Comparable to a skin mole, this naevus develops in the choroid, the vascular membrane that nourishes the retina. Dr Julien Gozlan, ophthalmologist surgeon specialising in the retina in Paris 16, explains in this article what a choroidal naevus is, how it is diagnosed, what the monitoring criteria are, and in which cases specific management is required.

Myopic foveoschisis is a degenerative macular condition specific to high myopia, characterized by progressive splitting of the retinal layers at the fovea. Long underdiagnosed, this condition is now identified thanks to optical coherence tomography (OCT). Dr Julien Gozlan, ophthalmic surgeon specializing in vitreoretinal surgery at Cabinet Ophtalmologique Paris – Auteuil, offers a comprehensive overview of this disease: definition, pathophysiological mechanisms, symptoms, imaging diagnosis, surgical indications, operative techniques, and visual prognosis.

Choroidal neovascularization in high myopia is one of the most feared ocular complications in highly myopic patients. Dr Julien Gozlan, an ophthalmologist and surgeon specializing in retinal diseases at Cabinet Ophtalmologique Paris – Auteuil, manages this macular condition using state-of-the-art diagnostic equipment including OCT and OCT angiography. This article details the pathophysiological mechanisms of myopic choroidal neovascularization, its symptoms, current diagnostic methods, treatment with intravitreal anti-VEGF injections, and long-term visual prognosis.

Retinal artery occlusion is an ophthalmological emergency characterised by sudden loss of vision, comparable to a stroke of the eye. This rare but serious condition results from the interruption of blood flow in an artery supplying the retina, causing ischaemia that can lead to irreversible damage within hours. Dr Julien Gozlan, retina specialist at Cabinet Ophtalmologique Paris – Auteuil, explains in this article the different forms of retinal artery occlusion, their causes, warning symptoms, diagnostic examinations performed (fundus examination, OCT, OCT angiography), emergency management, visual prognosis and the critical importance of the associated cardiovascular workup.

OCT angiography (or OCT-A) is a recent imaging technique that allows visualization of blood circulation in the retina and choroid without dye injection. It complements standard macular OCT and fluorescein angiography. Dr Julien Gozlan, ophthalmic surgeon in Paris 16, explains the principle, indications, and limitations of OCT angiography.

Indocyanine green angiography (ICG) is an imaging examination that highlights the choroidal circulation, located beneath the retina. Complementary to fluorescein angiography and macular OCT, indocyanine green angiography aids in diagnosing choroidal conditions and guides their treatment.

Fluorescein angiography is a retinal imaging examination that allows observation of blood circulation and identification of leaks, hemorrhages, or ischemia. Performed in the office, this examination helps establish a precise diagnosis and guide the treatment of macular conditions such as AMD, or retinal vascular disorders such as CRVO. Dr Julien Gozlan explains its principle, indications, procedure, and risks.

OCT (optical coherence tomography) is a retinal imaging exam that has become essential in ophthalmology. It allows highly precise analysis of the macula – the central area of the retina responsible for fine vision. Dr Julien Gozlan, ophthalmic surgeon in Paris 16, explains what macular OCT involves, when it is indicated, and how the examination is performed.