Each person listed as an author is expected to have participated in the study to a significant extent. To qualify as a contributing author, one must meet all of the following criteria (The criteria of authorship are defined by the International Committee of Medical Journal Editors (ICMJE)):

1.Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work; 

2.Drafting the work or revising it critically for important intellectual content; 

3.Final approval of the version to be published; 

4.Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

All those designated as authors should meet all four criteria for authorship, and all who meet the four criteria should be identified as authors.

Contributors who meet fewer than all 4 of the above criteria for authorship should not be listed as authors, but they should be acknowledged, i.e. noted in the Acknowledgments section of the manuscript. 

The individuals who conduct the work are responsible for identifying who meets these criteria and ideally should do so when planning the work, making modifications as appropriate as the work progresses. It is the collective responsibility of the authors, not the journal to which the work is submitted, to determine that all people named as authors meet all four criteria.

If the authors have a need to exclude or add an author after the submission or publication of the manuscript, an explanation and a statement of agreement on the changes signed by all the declared authors and the author to be excluded or added are sent to the editorial board of the journal.

Corresponding author

The corresponding author is the person who takes the primary responsibility for communicating with the journal's editorial board during the submission of the manuscript, its peer review and the publication process. To answer editorial questions in a timely manner, the corresponding author should be available for contact throughout the entire process of manuscript submission and review.

The responsibility for confirming that each co-author meets the requirements for authorship lies with the author responsible for the correspondence prior to submission of the manuscript (corresponding author).

Authorship Statement

The corresponding author should indicate all authors of the manuscript and the contribution of each author in the form "Authorship Statement". This form must be uploaded when submitting the initial manuscript. Persons who participated in the writing of the article but do not meet the criteria of authorship should be indicated in the "Acknowledgements" section. A list of contributions will be published with the manuscript if it is accepted.

DOWNLOAD  The Authorship Responsibility form

By submitting the " Authorship Statement" form, the corresponding author confirms that:

- each author has read the statement of the author's responsibility and author contribution;

- all authors included in the list of authors meet the criteria of authorship;

- each author has contributed substantially to the writing of the paper, including conception, design, analysis, writing, and revision, and each author is responsible for its content;

- all authors have approved the final version of the manuscript;

- the submitted or similar material has not been and will not be submitted for publication or has already been published in any other publications in the same language simultaneously with the submission of the manuscript to the Journal of Ophthalomology (Ukraine)  until it is published in the Journal of Ophthalomology (Ukraine) .

Contribution of each author to the article

According to the form " Authorship Statement", the corresponding author provides summary information about the authors and their contribution to the work in the title page:

Example 1: Author A.A.: Reviewing and editing. Author B.B.: Conceptualisation; writing - design; formal analysis; writing - review and revision. Author V.V.: software; review and revision. Author G.G.: methodology; writing - reviewing and revising. Author D.D.: conceptualisation; writing - drafting; writing - reviewing and revising.

All authors analysed the results and approved the final version of the manuscript.

For a single author, use the following wording:

Example 2: The author confirms sole responsibility for the following: conception and design of the study, collection of data, analysis and interpretation of the results, and preparation of the manuscript. 

Contribution of the authors to the published work (options with explanation are possible):


Ideas; the formulation or development of overarching research goals and objectives.

Data curation

management activities for annotation (creation of metadata), data cleaning, and preservation of research data (including software code, if necessary for the interpretation of the data itself) for primary use and further reuse.

Formal analysis

the use of statistical, mathematical, computational or other formal methods to analyse or synthesise research data.

Obtaining funding

Acquisition of financial support for the project that led to this publication.


Conducting a process of research and study, such as conducting experiments or gathering data/facts


Development or design of methodology; creation of models.

Project administration

Responsible for managing and coordinating the planning and execution of research activities.


Providing research materials, reagents, supplies, patients, laboratory specimens, animals, instruments, computing resources or other means of analysis.


Programming, software development; design of computer programs; implementation of computer code and supporting algorithms; Testing of existing code components.


Oversight and responsibility for the planning and execution of research activities, including mentoring, external to the core team.


Verification, both as part of the activity and separately, of the overall reproducibility/reproducibility of the results/experiments and other research results.


Preparation, creation and/or presentation of published work, including data visualisation/presentation.

Writing - the initial draft

Preparing, creating and/or presenting a published work, including writing the initial draft (including substantive translation).

Writing - reviewing and editing

The preparation, creation and/or submission of a published work by individuals from the original research team, including critical review, commentary or revision - including pre- or post-publication stages.