Neuroretinitis in secondary syphilis

Syphilitic Posterior Uveitis: Correlative Findings and Significance

Twenty-one patients with syphilitic posterior uveitis were investigated retrospectively to study the disease spectrum, associations with neurosyphilis, and therapeutic implications. Ophthalmologic manifestations of syphilitic posterior uveitis are differentiated into acute and chronic uveitides. The several distinct acute uveitic syndromes are usually florid and are associated with early syphilis, with VDRL-positive syphilitic meningitis, and frequently with human immunodeficiency virus coinfection. The chronic posterior uveitides are often insidious, a manifestation of late syphilis, and associated commonly with subclinical neurosyphilis. All patients with acute cases and 54% of patients with chronic cases in our study received penicillin therapy appropriate for neurosyphilis. The frequent association of syphilitic posterior uveitis with neurosyphilis and the analogous spirochetal sequestration beyond the blood-brain and the blood-ocular barriers suggest that all patients with syphilitic posterior uveitis, irrespective of ocular disease intensity, should undergo evaluation of cerebrospinal fluid and be treated with penicillin regimens appropriate for neurosyphilis.

Optic disk edema associated with peripapillary serous retinal detachment: an early sign of systemic Bartonella henselae infection

PURPOSE

To describe optic disk edema associated with peripapillary serous retinal detachment as an early sign of systemic Bartonella henselae infection.

METHODS

Multicentered, retrospective case series.

RESULTS

Five women and two men presented with optic disk edema producing peripapillary serous retinal detachment. Each patient had a markedly elevated serum anti-B. henselae antibody titer. Patient age ranged from 11 to 44 years, with a mean and median of 26.6 and 28 years, respectively. The time from the onset of systemic symptoms to the onset of visual symptoms varied from 3 days to 1 month. The peripapillary serous retinal detachment resolved within 1 to 3 weeks in each case, producing a macular star in four of seven patients. Initial vision was 20/200 or worse in five of seven patients and improved in four of these five patients to 20/30 or better.

CONCLUSIONS

Systemic B. henselae infection should be considered in patients who develop optic disk edema associated with a peripapillary serous retinal detachment, even in the absence of classic neuroretinitis with a macular star.

Optic disk edema with a macular star

Optic disk edema with a macular star is a descriptive term encompassing a heterogeneous group of disorders. The clinical features include sudden visual loss, swelling of the optic disk, peripapillary and macular exudates that may occur in a star pattern, and cells in the vitreous. Herein we describe the clinical features, potential etiologic factors, differential diagnosis, work-up, and natural history of this entity. Although optic disk edema with a macular star is usually idiopathic, infectious causes, especially syphilis, Lyme disease, cat-scratch disease, and toxoplasmosis, should be considered. The macular exudate likely results from primary optic nerve disease, not from inflammation of the retina; therefore, we prefer the term "idiopathic optic disk edema with a macular star" for idiopathic cases rather than "neuroretinitis." When optic disk swelling and macular star are associated with focal or multifocal inflammatory lesions in the retina (retinitis), especially if an infectious cause is documented, the term "neuroretinitis" is appropriate. The prognosis for visual recovery is usually good, but residual visual loss may be severe in a few cases. Patients with a recurrent type of the disease may not experience pronounced improvement in optic nerve function. The macular exudate may not develop in cases of disk edema until 2 weeks after the patient's initial assessment; thus, patients who have acute papillitis with a normal macula should be reexamined within 2 weeks for development of a macular star. The presence of a macular star militates strongly against subsequent development of multiple sclerosis.

Toxoplasmosis neuroretinitis

BACKGROUND

Neuroretinitis is a distinct clinical entity consisting of moderate to severe visual loss, optic nerve head edema, macular exudate in a stellate pattern, and variable vitreous inflammation. Although the etiology is usually postviral or idiopathic, an acute infectious cause occasionally is demonstrated.

METHODS

Five juvenile or young adult patients with neuroretinitis are presented with serologic evidence of Toxoplasma gondii infection. Four of the five patients were treated with systemic antibiotics and corticosteroids; one patient was not treated.

RESULTS

With a mean follow-up period of 50 months, visual acuity returned to 20/25 or better in four patients, with one patient regaining visual acuity of 20/60. Two patients had one or more recurrent episodes of neuroretinitis, distinguishing toxoplasmosis from idiopathic neuroretinitis, which is usually a monophasic illness.

CONCLUSION

Toxoplasmosis infection is a rare, but potentially treatable, form of neuroretinitis and should be included in the differential diagnosis of "Leber's idiopathic stellate retinopathy."

Ocular syphilis

The ability of syphilis to mimic different ocular disorders can lead to misdiagnosis and delay in appropriate antimicrobial therapy. The authors describe their experience over the past 5 years with the ocular manifestations of syphilis in 25 patients who comprised 2.45% of 1020 new patients. Uveitis was the most common ocular manifestation seen. All patients had positive results from FTA-ABS tests, whereas only 68% had reactive serum VDRLs. Two of five patients tested for human immunodeficiency virus (HIV) antibody were reactive. The authors recommend routine FTA-ABS and VDRL screening in patients with uveitis or unexplained ocular inflammation. They also recommend testing for HIV antibody in luetics and aggressive treatment with high-dose aqueous penicillin for syphilis.

Retroviruses and their play-pals

A 28-year-old man with a previous history of Neissena infection presented with diminished vision, disc swelling, and panuveitis. Serologic tests revealed positive titers for both HIV and syphilis. Current epidemiology and treatment of such cases are discussed.