Evidence map›Paper›PMID 42332605›Full record

ArticleBMC ophthalmology2026

Diagnostic and therapeutic impact of PCR in uveitis: real-world data from intraocular fluid analysis of 45 uveitis patients in a tertiary referral center in Turkey.

Nilüfer Zorlutuna Kaymak, İpek Pekel, Serap Demir Tekol, Güzide Akçay, Murat Oklar, Burak Tanyıldız

Abstract read
In one paragraph

Article in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Nilüfer Zorlutuna KaymakOphthalmology Department, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey. n_zorlutuna@yahoo.com.ORCID http://orcid.org/0000-0002-9673-824X
İpek PekelOphthalmology Department, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey.ORCID http://orcid.org/0009-0001-8956-6160
Serap Demir TekolClinical Microbiology, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey.ORCID http://orcid.org/0000-0002-6525-1818
Güzide AkçayOphthalmology Department, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey.ORCID http://orcid.org/0000-0002-6111-9772
Murat OklarOphthalmology Department, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey.ORCID http://orcid.org/0000-0001-5254-0613
Burak TanyıldızOphthalmology Department, Kartal Dr Lutfi Kırdar City Hospital, Health Science University, Istanbul, Turkey.ORCID http://orcid.org/0000-0001-8245-8389

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the diagnostic utility and real-world clinical impact of polymerase chain reaction (PCR) analysis of aqueous humor (AH) and vitreous samples in patients with uveitis including suspected infectious and mixed (infectious/non-infectious) etiologies. Although intraocular PCR is a well-established diagnostic technique, its contribution to diagnostic revision and clinical decision-making in routine practice remains incompletely characterized. This study addresses this gap by assessing the impact of PCR on diagnostic revision, clinical management and regional epidemiological patterns in a tertiary referral center in Turkey.

methodsA retrospective review was conducted on 45 eyes of 45 patients with uveitis. PCR testing was performed on AH (n = 24) and vitreous samples (n = 21) for Herpes simplex virus (HSV), Varicella zoster virus (VZV), Cytomegalovirus (CMV), Toxoplasma gondii, and Mycobacterium tuberculosis based on clinical suspicion. Pathogen-specific uniplex real-time PCR assays providing qualitative and quantitative results were used. PCR findings were evaluated in conjunction with clinical presentation to assess their contribution to diagnostic revision, diagnostic certainty, and clinical management.

resultsThe mean patient age was 47.4 ± 17.3 years, and 51.1% of the patients were female; 28.9% were immunosuppressed. Overall PCR positivity was 42.2% (19/45). PCR positivity was higher in immunosuppressed patients than in immunocompetent patients (62.0% vs. 34.4%), although this difference did not reach statistical significance (p = 0.094). PCR positivity was higher in AH samples than in vitreous samples (50.0% vs. 33.3%). PCR analysis led to diagnostic revision in 33.3% (15/45) of patients and influenced clinical management decisions in 80.0% of cases. Positive PCR results were significantly associated with diagnostic certainty (p = 0.006), whereas PCR-negative patients had a markedly higher likelihood of requiring diagnostic and therapeutic modification compared to PCR-positive patients (OR 21.0, 95% CI 2.4-182, p = 0.001).

conclusionPCR analysis of intraocular fluids provides meaningful diagnostic value in the evaluation of uveitis. Both positive and negative results inform clinical decision-making by guiding diagnostic revision and supporting appropriate management strategies. These findings provide region-specific epidemiological data and reinforce intraocular PCR as a key adjunct in complex uveitis cases where clinical features alone are insufficient.

Indexed as

Aqueous HumorReal-Time Polymerase Chain ReactionUveitisVitreous BodyAdultAgedDNA, BacterialDNA, ViralFemaleHumansMaleMiddle AgedPolymerase Chain ReactionRetrospective StudiesTertiary Care CentersTurkeyDNA, BacterialDNA, ViralAqueous humorInfectious uveitisPolymerase chain reactionUveitisVitreous

Identifiers

PMID42332605
PMCPMC13285391

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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.