Commonly presenting symptoms of PORN include:

Blurry vision
Acute onset bilateral visual loss OR painless progressive visual loss
Decreased vision with pain
Floaters
Headaches

Diagnosis
The diagnosis of Progressive outer retinal necrosis (PORN) syndrome is made primarily through history and physical exam. A patients medical history of AIDS increases the likelihood of PORN as the diagnosis. An eye exam will show specific hallmark features, including opacified lesions in the peripheral retina without inflammation. There are medical tests that can aid in diagnosing the severity of the disease process, however are not necessary for initial diagnosis. Imaging studies: may help diagnose the extent of retinal involvement
Optical coherence tomography (OCT): this test allows ophthalmologists to look at outer and inner layers of the retina
Fundus autofluorescence: shows areas of unhealthy cells in the retina
Blood work: the labs can show how immuno-compromised an individual is
Vitreous Tap: Analysis of the fluid in the eye can show the causative organism, such as VZV.Other possible diseases to consider when a patient presents with symptoms similar to PORN include:  CMV retinitis, ARN, Syphilitic retinitis, Toxoplasma retinochoroiditis, tuberculosis, toxocariasis, fungal or bacterial endophthalmitis Inflammatory: Sarcoidosis, Behcets, other retinal vasculitides, Neoplastic: intraocular lymphoma, leukemia, metastasis. Prognosis
If left untreated, PORN syndrome can become bilateral, affecting both eyes. The retina can also atrophy, or decay, over time as the blood supply decreases. This leads to retinal detachment, a process where the retina breaks off the back of the eye. Retinal detachments are considered surgical emergencies, as they can lead to blindness if not promptly fixed.
An infected aneurysm is an aneurysm arising from bacterial infection of the arterial wall. It can be a common complication of the hematogenous spread of bacterial infection.William Osler first used the term "mycotic aneurysm" in 1885 to describe a mushroom-shaped aneurysm in a patient with subacute bacterial endocarditis. This may create considerable confusion, since "mycotic" is typically used to define fungal infections. However, mycotic aneurysm is still used for all extracardiac or intracardiac aneurysms caused by infections, except for syphilitic aortitis.The term "infected aneurysm" proposed by Jarrett and associates is more appropriate, since few infections involve fungi. According to some authors, a more accurate term might have been endovascular infection or infective vasculitis, because mycotic aneurysms are not due to a fungal organism.Mycotic aneurysms account for 2.6% of aortic aneurysms. For the clinician, early diagnosis is the cornerstone of effective treatment. Without medical or surgical management, catastrophic hemorrhage or uncontrolled sepsis may occur. However, symptomatology is frequently nonspecific during the early stages, so a high index of suspicion is required to make the diagnosis.Intracranial mycotic aneurysms (ICMAs) complicate about 2% to 3% of infective endocarditis (IE) cases, although as many as 15% to 29% of patients with IE have neurologic symptoms.Mycotic abdominal aorta aneurysm (MAAA) is a rare and life-threatening condition. Because of its rarity, there is a lack of adequately powered studies and consensus on its treatment and follow up. A management protocol on the management of mycotic abdominal aortic aneurysm was recently published in the Annals of Vascular Surgery by Premnath et al.