Evidence map›Paper›PMID 34411735›Full record

ArticleThe ocular surface2021

Concurrent ocular pain in patients with neurotrophic keratopathy.

Leyla Yavuz Saricay, Betul N Bayraktutar, Brendan M Kenyon, Pedram Hamrah

Open access · hybridAbstract read
In one paragraph

Article in The ocular surface, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

8 citing papers in PubMed, 23 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Leyla Yavuz SaricayCenter for Translational Ocular Immunology, Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, USA; Cornea Service, New England Eye Center, Department of Ophthalmology, Tufts Medical School, Tufts Medical Center School of Medicine, Boston, USA.
Betul N BayraktutarCenter for Translational Ocular Immunology, Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, USA; Cornea Service, New England Eye Center, Department of Ophthalmology, Tufts Medical School, Tufts Medical Center School of Medicine, Boston, USA.
Brendan M KenyonCenter for Translational Ocular Immunology, Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, USA; Program in Neuroscience, School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA.
Pedram HamrahCenter for Translational Ocular Immunology, Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, USA; Cornea Service, New England Eye Center, Department of Ophthalmology, Tufts Medical School, Tufts Medical Center School of Medicine, Boston, USA; Program in Neuroscience, School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA. Electronic address: phamrah@tuftsmedicalcenter.org.
Tufts University · US

Funding

Mechanisms of Corneal Neuro-Immune CrosstalkR01EY029602 · NEI · UNIVERSITY OF SOUTH FLORIDA · PI Pedram Hamrah · 2018 to 2026
$3.6M
Discovery of the Biomarker Signature for Neuropathic Corneal PainR61NS113341 · NINDS · TUFTS MEDICAL CENTER · PI HAMRAH, PEDRAM · 2019 to 2019
$2.1M
NEI NIH HHS R01 EY029602NINDS NIH HHS R61 NS113341
6 · The paper itself

Abstract

purposeTo illustrate that ocular pain may occur in patients with neurotrophic keratopathy (NK) that typically are thought to lack symptoms of discomfort, and that aa subset of these patients may also present with neuropathic corneal pain (NCP).

methodRetrospective Case series of 7 stage 1 NK patients who presented with concurrent ocular pain, as confirmed by clinical examination, proparacaine challenge test, and in vivo corneal confocal microscopy (IVCM). Records were assessed for results of ocular surface disease index (OSDI), pain on visual analog scale (VAS), ocular pain assessment survey (OPAS), best-corrected visual acuity (BCVA), corneal fluorescein staining (CFS) score, and IVCM findings. IVCM findings were compared to that of 20 healthy reference controls.

resultsMean age of patients was 63.7 ± 11.6 (range 44-76) years and 56.9 ± 8.6 (range 42-74) years in reference controls (p = 0.11). At presentation, ocular discomfort was 8.0 ± 1.3 (range 7-10) on VAS and mean OSDI scores were 72.26 ± 6.81 (range 62.50-79.54). Mean BCVA was 20/40, and mean CFS scores were 3.43 ± 0.79 (range 2-4) on the Oxford scale. IVCM analysis showed significant decrease in mean total, main and branch nerve densities in ranges consistent with NK as compared to normal controls (p < 0.001 for all), increased dendritiform cell density in three patients (p < 0.001), and the presence of microneuromas in six of the patients.

conclusionPatients with NK are thought to present with hypoesthesia. However, nerve damage and inflammation, which play a role in the development of NK may result in the development of chronic ocular pain, such as NCP, resulting in potential underdiagnosis of either disease.

Indexed as

NeuralgiaTrigeminal Nerve DiseasesAdultAgedCorneaEye PainHumansMicroscopy, ConfocalMiddle AgedRetrospective StudiesCorneal NerveMicro-neuromaNeuropathic Corneal PainNeurotrophic KeratopathyOcular Pain

Identifiers

PMID34411735
PMCPMC8560561
OpenAlexW3196064175

What OpenQuestion holds

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Registered trials

None linked

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.