Ocular Immunology and Inflammation最新文献

Purpose: To characterize the dynamic changes of fundus in Vogt-Koyanagi-Harada (VKH) disease through enhanced spectral-domain optical coherence tomography (EDI-OCT) and explore the predictors of visual prognosis.

Methods: In this retrospective cohort study, a total of 2152 VKH patients referred to our uveitis center from January 2013 to April 2022 were screened; 151 new-onset VKH patients (299 eyes) and 82 healthy controls (164 eyes) were included. The manifestations of fundus at baseline, 1 month, 3 months, and 12 months after treatment were analysed and their relevance to visual prognosis were evaluated.

Results: After retinal detachment (RD) (97.3%) and optic disc swelling (100%) presented at baseline, retinal reattachment (81.6%) and the granular hyperreflective depositions at the retinal pigment epithelium (RPE) (61.5%) were observed at month 1. The RPE and ellipsoid zone rearrangement accompanying interdigitation zone attenuation (57.9%) was noted finally. Choroidal thickness of patients was higher than that in the controls at baseline and month 1 (both P < 0.001). Best-corrected visual acuity (BCVA) (logarithm of the minimum angle of resolution [logMAR]) (P < 0.001; OR, 4.01), subretinal fibrinoid exudate (P < 0.001; OR, 3.9) and RPE folds (p = 0.001; OR, 2.39) at baseline, and the RD at month 1 (P < 0.001; OR, 3.42) were associated with visual prognosis.

Conclusions: New-onset VKH patients after treatment exhibited dynamic changes in the fundus especially the outer retina during a 12-month period. The BCVA, subretinal fibrinoid exudate, and RPE folds at baseline, and RD at month May 1, serve as predictors of visual prognosis.

Purpose: Orbital/periorbital tuberculosis (TB) is an uncommon manifestation of extrapulmonary TB, presenting diagnostic challenges due to its varied clinical features that can mimic other diseases. This report aims to present a rare case of periorbital TB in a young man.

Methods: Case report.

Results: A 36-year-old man presented with painless left periorbital swelling and discharge following facial trauma. Despite initial treatment with antibiotics elsewhere, symptoms persisted. Imaging revealed a periorbital abscess with adjacent bone involvement. Microbiologic studies demonstrated Mycobacterium tuberculosis complex growth, confirming TB. There was no evidence of systemic TB. The patient received anti-tuberculosis therapy. At the 8-month follow-up, he remained symptom-free.

Conclusion: Orbital/periorbital TB, although rare, should be taken into consideration in regions with high TB prevalence when dealing with chronic, non-resolving periorbital lesions. Advanced imaging and molecular diagnostics play crucial roles in confirming the diagnosis, especially given the low sensitivity of traditional culture methods for extrapulmonary TB.

Aim: We report a unique finding of iris nodules in a woman with endogenous endophthalmitis due to Acinetobacter baumannii with no history of ocular surgery or trauma and good visual outcome.

Materials & methods: Retrospective case report.

Results: A 39-year-old woman with a history of type 2 diabetes mellitus presented with a decrease in vision in the right eye of 1-month duration. On examination, her BCVA was CF2m (OD) and 6/6 (OS). Right eye examination showed medium-to-large-sized keratic precipitates, iris nodules, and vitritis. PCR on the aqueous showed faint positivity for Propionibacterium acne and was negative to panfungal genome. Despite two intravitreal injections of vancomycin (1 mg/0.1 ml) and intravenous cefazolin 1 g bd for 5 days, there was progression to hypopyon. Vitrectomy with lensectomy was done. The vitreous culture grew Acinetobacter baumannii. She was given multiple intravitreal ceftazidime (2.25 mg/0.1 ml) with dexamethasone (0.4 mg/0.1 ml) injections. She was also put on tab bactrim DS twice a day for 3 months along with tab doxycycline 100 mg twice a day for 3 months by the infectious disease specialist. As the inflammation improved, the iris nodules were the last to resolve completely in 6 weeks. At 15-month follow-up, her eye was quiet, and vision was 6/9 (OD) with aphakic correction.

Conclusion: We report a rare finding of iris nodules in a patient with culture proven Acinetobacter baumannii endogenous endophthalmitis.

Purpose: To describe a rare case of posterior scleritis associated with late-onset Takayasu arteritis.

Methods: A case report of a 75-year-old female presenting with posterior scleritis, eventually diagnosed with late-onset Takayasu arteritis was described. Several medical evaluation visits were conducted, including ophthalmological and rheumatological follow-up. Multiple diagnostic tests were carried out, and the cornerstones of the treatment were corticosteroids and the IL-6 inhibitor tocilizumab.

Results: The patient was admitted to our hospital's emergency room with right unilateral eyelid edema, chemosis and red eye. She had previously experienced two episodes that were misdiagnosed as preseptal cellulitis. The presence of choroidal folds and the T sign on the ultrasound exam were highly suggestive of posterior scleritis. Later, the patient was diagnosed with Takayasu arteritis, a type of large vessel vasculitis. Treatment with steroids was started, which was later switched to IL-6 inhibitors to achieve better control of the systemic disease.

Conclusion: Posterior scleritis is often misdiagnosed, necessitating high clinical suspicion. Multimodal diagnosis is important to establish an accurate diagnosis. Up to 34% of cases may be associated with a systemic disease. This is the first case described in the literature of posterior scleritis associated with late-onset Takayasu arteritis.

Purpose: To report an unusual case of retained caterpillar hair in the vitreous cavity presenting as recurrent Intermediate Uveitis with cystoid macular edema.

Method: Case Report.

Results: A 40-year-old male presented to our uveitis clinic with recurrent episodes of redness and diminution of vision in his left eye for 3 years. He was diagnosed and treated elsewhere as a case of recurrent intermediate uveitis and was referred to our center for a second opinion to initiate immunosuppressive therapy. A detailed history revealed that a caterpillar had fallen into his left eye 3 years back, followed by severe irritation, pain, and redness. He received topical antibiotics and corticosteroids, and retained caterpillar hair was removed from the ocular surface. During the last 3 years, the patient had multiple episodes of inflammation despite being treated with oral and topical corticosteroids. At the current visit, a meticulous clinical examination at our centre revealed multiple, migrated, retained caterpillar hair in the vitreous cavity. The patient was diagnosed with Ophthalmia Nodosa (Type V) and managed with surgical intervention (vitreous surgery). The case highlights an unusual presentation of ON and the role of pars plana vitrectomy in its successful management.

Conclusion: We highlight a rare and unusual presentation of ophthalmia nodosa and its successful management.

Purpose: To report a challenging case of serologically confirmed posterior uveitis due to leptospirosis.

Methods: Review of medical records.

Results: Thirteen-year-old boy presented focal necrotizing retinochoroiditis after flood exposure. Laboratory work-up confirmed leptospirosis infection and proper antibiotic treatment was done. The patient evolved well. but during late follow-up he developed nummular keratitis.

Conclusion: Leptospirosis is a possible etiology of necrotizing posterior uveitis. The use of antimicrobial therapy is controversial but was used in this case, in association with corticosteroids, leading to resolution of retinal inflammation. Despite treatment, the patient developed late corneal opacities, which did not lead to visual impairment.

Purpose: The aim of this study was to evaluate the prevalence, type and treatment outcomes of ocular involvement in patients with brucellosis.

Methods: This prospective, single-center study enrolled patients admitted to the infectious disease outpatient clinic with diagnosed brucellosis between July 15, 2022 and July 15, 2023. Diagnosis was based on clinical symptoms and a standard Brucella tube agglutination test (≥1/160) or a positive blood culture. Ophthalmologic examinations were performed at baseline and in the first month of treatment. Third and sixth month follow-up examinations were also performed for patients with ocular findings.

Results: Ocular involvement occurred in 60 (24.8%) of 242 patients. Conjunctivitis was the most common ocular involvement and was observed in 39 patients (16.1%). Uveitis was the second most common ocular involvement in 14 patients (5.8%). Scleritis was the least common ocular involvement and was observed in only one patient. Patients with ocular involvement were older (p = 0.027) and had higher rates of weight loss and spondylodiscitis (p = 0.044 and 0.001, respectively). Among laboratory parameters, erythrocyte sedimentation rate and lactate dehydrogenase levels were significantly higher in patients with ocular involvement (p = 0.001 and 0.036, respectively). There were no significant differences in other demographic, clinical, and laboratory characteristics between patients with and without ocular involvement. In 56 (93.3%) patients, the ocular findings improved during the follow-up examination.

Conclusion: Brucellosis, a systemic infection, can manifest with ocular involvement. Early detection and treatment through ophthalmological examination are crucial in managing brucellosis.

Purpose: To report a case of ophthalmomyiasis interna posterior which was asymptomatic and had pigment clumps in the inner retina at the macula.

Methods: Single-centre, observational, retrospective case report.

Results: A routine refractive error check-up for an asymptomatic 52-year-old Asian Indian woman, who had relied on glasses for 8 years, unfolded a captivating narrative within her retina. This coloured fundus photo unveils mid-peripheral retinal disease with multiple outer retinal atrophic tracts, circumlinear patterns, and intricately intertwined RPE atrophic tracts. These were hyper-autofluorescent on blue autofluorescence. The inferonasal periphery had two-disc diameters of pigmented retinal-choroidal atrophic scar. The macula revealed a collection of black intraretinal pigments in parafoveal areas. The distinct clinical presentation, marked by multiple tracts and unilateral manifestation without disc pallor, hinted at the intriguing possibility of self-resolved "Ophthalmomyiasis interna posterior."

Conclusion: The course of disease in ophthalmomyiasis interna posterior can be self-limiting and asymptomatic. The presence of inner retinal pigments at foveal and parafoveal areas, possibly due to pigment migration from the peripheral outer retinal tracts, is a rare presentation.

Purpose: To study and compare the clinical characteristics and outcome of ocular syphilis between HIV positive and HIV negative patients.

Methods: Retrospective hospital-based case series from a tertiary eye care hospital in India. Patients with uveitis and positive syphilis serology were included. Demographics, clinical features, investigations, imaging and treatment modalities were noted.

Results: Hundred and five (105) eyes of 66 patients were analyzed. Males were predominantly affected (n = 57/66, 86.4%). Secondary syphilis was the most common stage of presentation (n = 48/66, 72.7%). Two groups were identified: HIV positive (HIVP) patients (n = 39/66, 59%) and HIV negative (HIVN) patients (n = 27/66, 41%). 12/39 (30.8%) patients were newly diagnosed with HIV at the time of ocular presentation. Panuveitis was the most common presenting feature in both groups (n = 66/105 eyes, 62.8%). Diffuse necrotizing retinitis was more common in HIV patients (HIVP - 15 Vs HIVN - 5 eyes). Ocular co-infections were more common in HIV patients, ocular tuberculosis, the commonest in both groups. Intravenous penicillin and titrated dose of systemic steroids were the mainstay of treatment. Improvement in mean logMAR was noted from 1.415 to 0.828 with p-value < 0.001. At final follow-up, 71.8% patients showed visual improvement. Complete resolution of ocular inflammation was noted in 95.5% patients.

Conclusion: Ocular syphilis poses a diagnostic challenge considering the varied presentations and clinical course both in immunocompromised and immunocompetent groups. Clinical presentations are not always classical. High index of suspicion with supportive laboratory investigations and with characteristic OCT features helps diagnosis. All uveitis patients, especially with those suspected with infectious etiology, need to be tested for syphilis serology to prevent vision loss in this resurgent disease.