Purpose Coast´s disease is an idiopathic unilateral exudative retinal vasculopathy characterized by telangiectasias and irregular dilatation of retinal vessels leading to intra‐and subretinal exudation and lipid deposition. Typically occurs in childhood but sometimes could be found in adults.
Methods 34 years old male referred diminished visual acuity (VA) of the left eye (LE). VA was RE 10/10, LE 3/10. Anterior pole and IOP were normal. LE fundoscopy showed peripheral telangiectasias, vascular sheathing and subretinal exudation. Macular edema existed beyond the vascular arcades surrounded by lipid exudation. Optical coherence tomography (Stratus OCT) showed an increase macular thickness (370µ), and fluorescence angiography showed early hyperfluorescence the telangiectasias, and mild late hyperfluorescence of the subretinal fluid.
Results Coats´ disease was diagnosed and photocoagulacion was performed. Two months later, VA was 9/10 with diminution of lipid exudation. Macular thikness was 232µ.
Conclusion The diagnosis of Coats´ disease is established by the appearance of the retina. OCT and AGF are useful for monitoring the progression. Coats´ disease the adulthood remains localized, and with slower progression. Laser treatment is still the first option.