Intraocular gas application in the diagnosis and treatment of valsalva retiopathy in a case with premacular hemorrhage

0.3 cc pure C3F8 gas was instilled intravitreally with the aim of pneumatic displacement in order to make a differential diagnosis for the Valsalva retinopathy and hemorrhage due to SMD to a 72 year old male patient who had scar tissue development due senile macular degeneration (SMD) in the left eye and had sudden decrease in visual acuity because of premacular hemorrhage in right eye. The physical examination performed the other day on the patient who had been laid down in the supine position for 24 hours, revealed the drainage of hemorrhage by ensuing posterior vitreus detachment and complete resolution of the premacular hemorrhage. This paper aims to report that the diagnosis can be established in premacular hemorrhage cases exhibiting diagnositc uncertainity, by posterior vitreus detachment developing as a result of pneumatic displacement and thus the treatment is instituted accordingly.