[Dome-shaped macula: appearance on ultrasound and optical coherence tomography]. / Macula en dôme : aspects échographique et tomographique.

INTRODUCTION: The purpose of our work is to demonstrate the role of optical coherence tomography and ocular ultrasound in the diagnosis of the dome-shaped macula in high myopia. OBSERVATION: We report the case of a patient with high myopia who presented with a decrease in visual acuity and metamorphopsia in the left eye. She underwent visual acuity measurement, biomicroscopic examination and measurement of axial length. B-mode ultrasound and optical coherence tomography showed a projection of the macula in the convexity of the myopic staphyloma confirming the diagnosis of dome-shaped macula. DISCUSSION AND CONCLUSION: Dome-shaped macula is a recently discovered entity, which may be responsible for a decrease in visual acuity in patients with high myopic posterior staphyloma. Ultrasound and optical coherence tomography are very helpful in making the diagnosis.

[Compressive optic neuropathy secondary to a pituitary macroadenoma]. / Neuropathie optique compressive secondaire à un macroadénome hypophysaire.

INTRODUCTION: Pituitary adenoma is a common benign tumor representing 8 to 10% of intracranial mass lesions. The compressive optic neuropathy associated with a pituitary adenoma can be clinically indistinguishable from glaucomatous optic neuropathy. CASE REPORT: A 56-year-old man with no significant past medical history had noticed a rapid decrease in visual acuity for 6 months. Funduscopic examination revealed glaucoma-like bilateral, asymmetric optic cupping. Brain MRI examination revealed a pituitary tumor compressing the optic chiasm. CONCLUSION: The diagnosis of a compressive optic neuropathy associated with a pituitary adenoma can be difficult, since it often simulates chronic glaucoma. However, several features should alert the clinician to the possibility of a compressive optic neuropathy and prompt neuroimaging, in order to obtain earlier diagnosis and treatment.

Cancer associated retinopathy with periphlebitis and bilateral vitreous hemorrhage.

INTRODUCTION: Cancer associated retinopathy (CAR) is an uncommon paraneoplastic syndrome associated with epithelial neoplasm. Ocular symptoms of this syndrome are varied. CASE REPORT: A 40-year-old man with an existing smoking history noticed a bilateral visual loss.Fundus examination showed a bilateral vitreous hemorrhage.In the left eye, there were narrowed retinal arterioles and peripapillary neovessels. An X-ray chest revealed a lung lesion which on biopsy proved to be a bronchial squamous cell carcinoma. After conducting several explorations,we have diagnosed CAR. CONCLUSION: Vitreous hemorrhage is one of the symptoms of CAR. Thus, systems review, searching for an extraocular cancer, X-ray chest and ERG are recommended in this case.