Ophthalmology Inflammatory Disorders 758edabb Most common organism causing chorioretinitis in HIV is- A CMV retinitis B Tocoplasma retinochoroiitis C Syphilitic retinitis D Pneumocystis carini High-Yield Explanation Ans. is 'a' i.e., CMV retinitis o "Cytomegalovirus (CMV) is the most common cause of chorioretinitis in patients who are HIV positive.