RESUMEN
Cluster headaches are a series of short, excruciating, and unilateral pain that happens for a short period at a time over days, weeks, or months and may awake people from sleep. It is situated behind, in, or around one eye only with possible radiation to the forehead at the same side. Cluster headache is characterized by many ocular features. However, extraocular muscle involvement is unusual in this type of headache. We present a case of chronic cluster headache associated with diplopia due to oculomotor nerve palsy in a 24-year-old man, which responded successfully to oral steroid. This presentation is rare. Therefore, ophthalmologists and neurologists should consider it in their list of a differential diagnosis. A short course of oral prednisolone has a role in the management of patients in such cases.
RESUMEN
BACKGROUND: Sickle cell disease (SCD) is a multisystemic disorder with variable systemic involvement which varies according to genotype. In this study, our aim is to compare ocular complications between HbSS, HbSC, HbS/ß+ thalassemia, HbS/ß0 thalassemia, SS alpha thalassemia, and S/ß0 + alpha thalassemia genotypes. METHODS: Data of patients included in this study was recruited from the Cooperative Study of Sickle Cell Disease (CSSCD). Patients with major sickle cell hemoglobinopathies (SS, SC, Sß- thalassemia, SS alpha thalassemia) were eligible for enrollment, after that, a detailed eye exam was performed. We categorized ocular complications into conjunctival sign, iris atrophy, and both proliferative and non-proliferative sickle cell retinopathy. RESULTS: A total of 1867 patients were included in this study, with a mean age of 27.7 (± 11.7) years. They were 830 (44.5%) males and 1037 (55.5%) females. The most common genotype was SS with 971 (52%) patients, and the least common form was sickle cell with both alpha and beta thalassemia major with 42 (2.2%) patients. We found a significant difference in the frequency of proliferative sickle cell retinopathy, where SC genotype had the highest frequency and S B0 thalassemia genotype had the lowest frequency. We also found a significant difference in the frequency of conjunctival sign, where SS genotype had the highest frequency and the S B+ thalassemia has the lowest frequency. CONCLUSION: We identified ocular complications for major sickle cell hemoglobinopathies, where we confirmed previous small study's findings and identified ocular complications of less common hemoglobinopathies.