Updated on 2026/06/20

写真a

 
Suga Ryota
 
Affiliation
Tamanagayama Hospital, Department of Ophthalmology, Assistant Professor
Title
Assistant Professor
External link

Papers

  • Concurrent cytomegalovirus iridocyclitis and vitreoretinal lymphoma in the same eye during long-term infliximab therapy: a case report. International journal

    Hitoshi Goto, Shiho Kunimatsu-Sanuki, Ryota Suga, Junko Hori

    Journal of ophthalmic inflammation and infection   2026.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    BACKGROUND: We report a rare case of cytomegalovirus (CMV) iridocyclitis and vitreoretinal lymphoma (VRL) that developed sequentially in the same eye during long-term infliximab (IFX) therapy for ulcerative colitis. This case highlights both the risk of opportunistic ocular infections and lymphoproliferative disorders coexisting in the same eye and the diagnostic challenges associated with prolonged immunosuppression. CASE PRESENTATION: A 65-year-old man presented to the ocular inflammatory service at Nippon Medical School Tama-Nagayama Hospital with deteriorating vision in the left eye. His medical history included IFX therapy for 11 years for ulcerative colitis, a 7-year history of bilateral primary open-angle glaucoma, and recurrent iridocyclitis in the left eye. Slit-lamp examination revealed mutton-fat keratic precipitates and dense vitreous opacities. Multiplex PCR of the aqueous humor detected CMV and Epstein-Barr virus (EBV). The cytological grading of the vitreous fluid was class IIIb. Cytokine analysis revealed an interleukin (IL)-10/IL-6 ratio of > 1.0, and immunoglobulin heavy chain gene rearrangement revealed monoclonality. Based on these findings, the patient was diagnosed with concurrent CMV iridocyclitis and VRL in the same eye. EBV positivity in the aqueous humor may have been associated with VRL development under prolonged immunosuppression. Topical ganciclovir was initiated for CMV iridocyclitis. The patient underwent bilateral ocular radiotherapy (40 Gy) and systemic chemotherapy with rituximab, methotrexate, procarbazine, and vincristine after IFX cessation. Although inflammatory and infiltrative lesions resolved, his final visual acuity was 20/200 due to glaucomatous visual field loss. CONCLUSIONS: The present case highlights both the risk of opportunistic ocular infections and lymphoproliferative disorders associated with prolonged immunosuppression and the diagnostic challenge when both conditions coexist in the same eye. Careful monitoring and close collaboration between ophthalmologists and internists are essential for the early diagnosis and appropriate management of such patients.

    DOI: 10.1186/s12348-026-00594-x

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  • Factors associated with the avoidance of glaucoma surgery in secondary glaucoma due to ocular inflammatory disease. International journal

    Yusuke Nishio, Mutsuhiro Tauchi, Ryota Suga, Naka Shiratori, Kenji Nakamoto, Fumiki Okamoto, Junko Hori

    Journal of ophthalmic inflammation and infection   15 ( 1 )   98 - 98   2025.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    BACKGROUND: Many cases of hypertensive uveitis progress to visual field narrowing due to difficulty controlling intraocular pressure. The purpose of this retrospective study was to identify factors related to avoidance of trabeculectomy (TLE) in patients with hypertensive uveitis. METHODS: Participants comprised patients diagnosed with ocular inflammatory disease at Nippon Medical School Tama Nagayama Hospital, Ocular Inflammation Service between April 2018 and September 2022. Logistic regression analysis was performed using avoidance of TLE as the objective variable and the following as explanatory variables: age, sex, use of biologics, granulomatous type, background disease, and treatment. RESULTS: A total of 745 eyes in 480 patients were investigated. Mean age was 57.1 ± 19.6 years, with a male-to-female ratio of 205:275. Hypertensive uveitis was identified in 200 patients (41.7%). The most common causative disease was scleritis (26.5%), followed by sarcoidosis (16.7%), Vogt–Koyanagi–Harada disease (6.0%), Behcet’s disease (5.2%), herpetic keratouveitis (5.0%), HLA-B27-associated uveitis (2.3%), cytomegalovirus iritis/corneal endotheliitis (1.7%), and Posner–Schlossman syndrome (0.6%). The disease type for the remaining 21.9% was unclassifiable. Anti-inflammatory treatments were: topical steroid (100%), sub-conjunctival or sub-Tenon injection of steroid (16.8%), oral steroid (16.6%), oral immunosuppressants (9.1%), and biologics (8.2%). Sixty-eight eyes (9.1%) had a history of TLE. Factors associated with avoidance of TLE were use of biologics (odds ratio [OR] 2.93, p = 0.01) and use of oral immunosuppressants (OR 1.42, p = 0.08). CONCLUSION: Around 9.1% of hypertensive uveitis cases progress to needing TLE. Use of biologics and oral immunosuppressants may help avoid TLE among patients with hypertensive uveitis.

    DOI: 10.1186/s12348-025-00551-0

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Misc.

  • テノン嚢後方縫い付け法によるプリザーフロマイクロシャント挿入術の術後6ヵ月成績

    西尾 侑祐, 中元 兼二, 田内 睦大, 須賀 亮太, 白鳥 宙, 堀 純子

    日本緑内障学会抄録集   36回   79 - 79   2025.9

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    Language:Japanese   Publisher:日本緑内障学会  

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  • Clinical Features of Optic Neuritis at Nippon Medical School Tama

    須賀亮太, 川原稔己, 白彩香, 田内睦大, 西尾侑祐, 後藤均, 堀純子

    日本眼科学会雑誌   129   2025

  • プリザーフロマイクロシャント挿入術の術後短期成績

    西尾 侑祐, 中元 兼二, 田内 睦大, 須賀 亮太, 白鳥 宙, 堀 純子

    日本緑内障学会抄録集   35回   151 - 151   2024.9

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    Language:Japanese   Publisher:日本緑内障学会  

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  • 硝子体手術後に発症したSoemmering輪を伴う悪性緑内障の1例

    須賀 亮太, 田内 睦大, 西尾 侑祐, 仲野 裕一郎, 中元 兼二, 堀 純子

    日本緑内障学会抄録集   35回   166 - 166   2024.9

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    Language:Japanese   Publisher:日本緑内障学会  

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  • 角膜の免疫応答におけるT cell/transmembrane,immunoglobulin and mucin-4の役割

    田内睦大, 須賀亮太, 山本恵, 國重智之, 堀純子

    日本眼感染症学会・日本眼炎症学会・日本コンタクトレンズ学会総会・日本涙道・涙液学会プログラム・講演抄録集   60th-57th-7th   2024

  • Herpes simplex virus (HSV)-related acute retinal necrosis (ARN) in the fellow eye three years after remission of ARN secondary to HSV encephalitis

    白彩香, 西尾侑祐, 川原稔己, 須賀亮太, 田内睦大, 鈴木恵理, 仲野裕一郎, 堀純子

    臨床眼科   78 ( 10 )   2024

  • サイトメガロウイルス関連前眼部炎症性疾患に伴う続発緑内障の治療経過

    西尾侑祐, 白彩香, 川原稔己, 六鹿好志久, 田内睦大, 須賀亮太, 中元兼二, 堀純子

    日本眼感染症学会・日本眼炎症学会・日本コンタクトレンズ学会総会・日本涙道・涙液学会プログラム・講演抄録集   60th-57th-7th   2024

  • 水痘帯状疱疹ウイルスによる閉塞性網膜血管炎の2例

    須賀亮太, 川原稔己, 白彩香, 田内睦大, 西尾侑祐, 堀純子

    日本眼感染症学会・日本眼炎症学会・日本コンタクトレンズ学会総会・日本涙道・涙液学会プログラム・講演抄録集   60th-57th-7th   2024

  • IgG4関連疾患に随伴した眼球突出を呈した後部強膜炎の1例

    川原稔己, 須賀亮太, 田内睦大, 西尾侑佑, 堀純子

    日本眼感染症学会・日本眼炎症学会・日本コンタクトレンズ学会総会・日本涙道・涙液学会プログラム・講演抄録集   60th-57th-7th   2024

  • Reaction of Biologics to Ocular Inflammatory Disease and Modifying Factors

    須賀亮太, 川原稔己, 白彩香, 田内睦大, 鈴木恵理, 西尾侑祐, 仲野裕一郎, 堀純子

    日本眼科学会雑誌   128   2024

  • Epidemiologic study of intraocular inflammation patients across five years at a tertiary center in western Tokyo

    須賀亮太, 川原稔己, 白彩香, 田内睦大, 鈴木恵里, 西尾侑祐, 仲野裕一郎, 堀純子

    臨床眼科   78 ( 10 )   2024

  • Factors Associated with Avoidance of Trabeculectomy for Uveitic Glaucoma

    西尾侑祐, 中元兼二, 田内睦大, 毛利玲於奈, 須賀亮太, 富山竜帆, 鈴木恵理, 堀純子

    日本眼科学会雑誌   127   2023

  • A case of acanthamoeba keratitis in both eyes related to orthokeratology lens

    須賀亮太, 高尾和弘, 五十嵐勉, 吉野健一, 高橋浩

    日本角膜学会総会・日本角膜移植学会プログラム・抄録集   46th-38th   2022

  • 自然気胸を契機に診断に至ったBirt-Hogg-Dube症候群の1例

    須賀亮太, 山本成則

    日本内科学会関東支部関東地方会   666th   2021

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