Evidence map›Paper›PMID 32436025›Full record

ArticleAdvances in therapy2020

Treatment of Oculoplastic and Ocular Surface Disease in Eyes Implanted with a Type I Boston Keratoprosthesis in Southern China: A Retrospective Study.

Yuying Zhang, Zhancong Ou, Jin Zhou, Jiajie Zhai, Jianjun Gu, Jiaqi Chen

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In one paragraph

Article in Advances in therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Corneal stability comparison between prophylactic cross-linking with laser refractive surgery technique versus laser refractive surgery technique alone for myopia: a meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Yuying ZhangState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China.
Zhancong OuState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China.
Jin ZhouState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China.
Jiajie ZhaiGuangdong Visual and Ophthalmology Research Institute, Guangzhou, China.
Jianjun GuState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China. gujj@mail.sysu.edu.cn.ORCID http://orcid.org/0000-0003-0620-3063
Jiaqi ChenState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China.
Sun Yat-sen University · CNGuangzhou Institute of Dermatology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study aimed to describe the clinical features, surgical management of the eyelid and ocular surface, and outcomes of 16 patients implanted with a Boston type I keratoprosthesis (KPro).

methodsA retrospective, single-center, consecutive case series of 16 patients with Stevens-Johnson syndrome (1), ocular chemical burns (12), and ocular thermal burns (3) implanted with KPro was studied. All subjects were men aged 27-51 years. Surgical treatment and outcomes for eyelid malposition, symblepharon, and glaucoma were assessed.

resultsFrom September 2010 to February 2019, 29 patients were admitted to Zhongshan Ophthalmic Center for KPro implantation, of whom 16 (55%) required eyelid or ocular surface surgeries to maintain hydration and protect the corneal tissue, which is vulnerable to epithelial defects. Forty-one adnexal surgical procedures were performed. The most common indication for surgery was symblepharon, and the most frequent procedures were symblepharon lysis with ocular mucous membrane grafts and amniotic membranes (7) and full-thickness skin grafts to the eyelids (7). Preoperative conjunctival injection and corneal staining were documented in 9 (56%) and 8 (50%) eyes, respectively, and at up to 4 months postoperative follow-up (the last adnexal surgery before KPro) were recorded in 3 (19%, p = 0.03) and 2 (12%, p = 0.02) eyes, respectively. Glaucoma drainage devices were inserted in six patients. One patient with Stevens-Johnson syndrome underwent FP7 Ahmed glaucoma valve (AGV) implantation inferotemporally and developed plate exposure 2 months postoperatively. Five patients underwent FP8 AGV implantation with tube insertion into the vitreous cavity due to the scarred conjunctiva and limited subconjunctival space. In the study period, intraocular pressure (IOP) was in the normal range, and no tube or plate exposure was observed.

conclusionThe ocular environment is critical for successful KPro surgery. A multidisciplinary approach for any lid and ocular surface abnormality in ocular burns or Stevens-Johnson syndrome is important to improve the quality of the ocular surface and accommodate KPro and AGV, which is vital for maintaining vision after KPro surgery. FP8 AGV may be feasible for IOP control in adult KPro cases with restricted subconjunctival space.

Indexed as

AdultBurns, ChemicalChinaConjunctival DiseasesCorneal DiseasesHumansLens Implantation, IntraocularMaleMiddle AgedProsthesis ImplantationRetrospective StudiesStevens-Johnson SyndromeAcellular dermisAhmed glaucoma valveBoston keratoprosthesisGlaucomaOcular burnsOcular surfaceOculoplastic surgeryPars plana vitrectomy

Identifiers

PMID32436025
OpenAlexW3027930109

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.