Evidence map›Paper›PMID 34571645›Full record

ArticleIndian journal of ophthalmology2021

Cobalt blue light unit filter - A smartphone attachment for blue light photography.

Athul S Puthalath, Neeti Gupta, Ramanuj Samanta, Anupam Singh, Devesh Kumawat, Sanjeev K Mittal

Open access · diamondAbstract read
In one paragraph

Article in Indian journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Examination under anesthesia: Preferred Practice.Indian journal of ophthalmology · 2023
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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 1 institution.

Athul S PuthalathDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Neeti GuptaDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Ramanuj SamantaDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Anupam SinghDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Devesh KumawatDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Sanjeev K MittalDepartment of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
All India Institute of Medical Sciences Rishikesh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to carry out blue light photography of fluorescein-stained corneas using a novel smartphone attachment.

methodsA smartphone attachment known as the cobalt blue light unit (C-BLU) was developed. It can filter out all wavelengths of light except the blue light emerging from the flashlight of a smartphone. A pilot study was carried out wherein the images captured with the C-BLU system were compared with slit-lamp photographs of the same patients. This setup was then used to photo document fluorescein-stained corneas in various clinical settings assembled at point-of-care.

resultsMany pathologies of the fluorescein-stained cornea were captured using the C-BLU filter. It was used effectively in various settings (remote eye camps, intensive care units (ICU), pediatric group, corneal trauma triaging, etc.). C-BLU was assembled and used by optometrists and ophthalmology residents. The images captured were used for documenting, assisting in the treatment, and also for telecommunication of the patients' findings.

conclusionC-BLU is a low-cost pocket-size filter which is easy to use with a modern smartphone without any technical expertise needed to obtain a clear image of fluorescein-stained pathological corneas.

Indexed as

CobaltSmartphoneChildHumansPhotographyPilot ProjectsSlit Lamp MicroscopyCobaltBlue lightcorneaimagingsmartphonetelemedicine

Identifiers

PMID34571645
PMCPMC8597460
OpenAlexW3204184729

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

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.