Instructions to Authors

Scope and policy

The ABO-ARQUIVOS BRASILEIROS DE OFTALMOLOGIA (ABO, ISSN 0004-2749 - print and ISSN 1678-2925 - (ABO, ISSN 0004-2749 - print and ISSN 1678-2925 - electronic version), the official bimonthly publication of the Brazilian Council of Ophthalmology (CBO), aims to disseminate scientific studies in Ophthalmology, Visual Science and Health public, by promoting research, improvement and updating of professionals related to the field.


They are accepted original manuscripts, in English only. According to the methodology, manuscripts should be characterized in one of the following ways:

Clinical studies
descriptive or analytical studies involving tests on humans or assess the relevant literature to humans.

Epidemiological studies
Analytical studies involving population results.

Studies Laboratory Experimentation
descriptive or analytical studies involving animals or other biological, physical or chemical techniques models.

Theoretical Studies
Descriptive studies referring to the description and theoretical analysis of new hypotheses proposed based on existing knowledge in the literature. Theoretical studies must necessarily add new information to the literature.

Manuscript Types

The shape of the submitted manuscript must fit into one of the following categories. The limits for each type of manuscript are in parentheses at the end of the descriptions of the categories. The manuscript word count refers to the beginning of the introduction at the end of the discussion, therefore, do not participate in counting the title page, abstract, abstract, references, acknowledgments, tables and figures including subtitles.


Editorials are by invitation only and shall relate to matters of current interest, preferably related to articles published in the same issue of the ABO (maximum: 1,000 words, title, 2 figures or tables and 10 references in total).

Original articles

Original articles have complete experiments never published results (maximum: 3,000 words, title, structured abstract, 8 figures or tables and 30 references in total). The evaluation of submitted manuscripts will follow the priorities below:

  1. New and relevant information based on study with appropriate methodology.
  2. Existing repetition of information in the literature, not yet proven regionally based study with appropriate methodology.
  3. Repetition of existing information in the literature that has been proven regionally based study with appropriate methodology.

* We will not accept manuscripts with speculative conclusions not supported by the results or based on study with inadequate methodology.

Letters reporting Cases or Case Series

The results of original studies with insufficient content to be submitted as Original Article, case reports or series of cases will be considered for publication when they describe findings with rarity and originality not yet proven internationally, or when the report presents clinical or surgical responses that contribute in the pathophysiological elucidation of any disease (maximum limits: 1,000 words, title, abstract unstructured, 4 figures or tables in total and 10 references).

Note: Please, observe that all case reports accepted to be published in 2018 or later will be allocated in the Letters session. This new formatting will not change the PubMed or other citation or indexing processes. 

In the case you disagree, please, let us know as soon as possible to allow removing your manuscript from the editorial process. 

Letters to the Editor

Other letters to the editor are considered for publication if they contain comments related to manuscripts previously published in ABO. These letters should present new information or new interpretation of existing information. When the content of the letter refers to an article previously published in ABO, such article should be mentioned in the first paragraph of the letter and included in its reference list. In these cases, the letters will be linked to the article, and the authors of the article will have their right of reply guaranteed in the same issue. Congratulation letters will not be published (title, maximum of 700 words, 2 figures or tables, and 5 references).

Review manuscripts

Review of manuscripts follow the editorial line of the magazine and are also accepted if submitted. Suggestions of subjects to review articles can be made directly to the editor, but the manuscripts can not be sent without a prior call (maximum: 4,000 words, title, unstructured abstract, 8 figures or tables in total and 100 references).

Editorial process

For the manuscript join the editorial process, it is essential that all the rules have been met. The editorial office shall inadequacies in sending the manuscript. Upon notification, the corresponding author shall have 30 days to adapt its manuscript. If the deadline is not met, the manuscript will be deleted.

The manuscripts submitted to ABO are initially evaluated by the editors as to the suitability of their content to the editorial line of the journal. After this evaluation, all manuscripts are sent for analysis and peer review, and the guaranteed anonymity of evaluators throughout the trial process. The anonymity of the authors is not implemented.

After initial editorial evaluation, reviewers' comments may be sent to the authors as a guide to the changes that must be made in the text. After implementing the changes suggested by the evaluators, the revised manuscript must be sent, accompanied by a letter (sent as a supplementary document) indicating punctually all modifications made to the manuscript or the reasons why the suggested changes were not made. Manuscripts that may not be accompanied by the letter indicating the changes will be retained pending receipt of the same. The deadline for submitting the new version of the manuscript is 30 days after notification of the need for modifications being deleted after this period. The publication will depend on the final approval of the editors.

Entries must be sent exclusively to the Journal of Ophthalmology, not being allowed simultaneous sending to another journal or its total or partial reproduction or translation for publication in another language without permission of the publishers.

The crit Erios for authorship of manuscripts in medical journals is well estabelecido. Authorship credit should be based on individuals who have contributed in a concrete way the following three phases of the manuscript:

I. Design and study design, data collection or analysis and interpretation of data.
II. Writing the manuscript or manuscript critical review with respect to its intellectual content.
III. Final approval of the manuscript version to be published.

The ABO require authors to ensure that all authors meet the above criteria and that no person who meets these criteria is passed over the authorship. Only the leading position of any individual does not attribute this paper author, ABO does not accept the participation of honorary authors.

It is necessary that the corresponding author complete and submit the form Declaração de Contribuição dos Autores as a supplementary document.

Guidelines for Excellence in Research
is recommended that the authors follow the proper guidance below before submitting your manuscript:

  • CONSORT (Controlled and randomized clinical trials)
  • STARD (Diagnostic instruments or techniques)
  • PRISMA (Systematic reviews and meta-analyses)
  • STROBE (Observational studies)

Form and preparation of manuscripts

Articles should be sent only electronically, via the Internet, the appropriate interface of the ABO. The rules that follow are based on the format proposed by the International Committee of Medical Journal Editors (ICMJE) and published in the article: Uniform Requirements for Manuscripts Submitted to Biomedical Journals.

Respect the instructions is mandatory condition for the work to be considered for analysis.

The text should be sent in digital format, being accepted only the .doc. or .rtf. The body text should be typed double-spaced, font size 12, with pages numbered in Arabic numerals, starting each section on a new page. Sections must present following: Cover Page (as a separate document), Abstract and Keywords, Summary and Key Words, Introduction, Methods, Results, Discussion, Acknowledgments (if any), references, tables (optional) and Figures (optional) with subtitle.

1. Cover Page. It should contain: a) title in English (maximum 135 characters, including spaces); b) title in Portuguese (maximum of 135 characters, including spaces); c) scientific name of each author; d) * affiliation of each author (city, state, country and, when applicable, department, school, university); e) name, address, phone and e-mail of the corresponding author; f) the aid of search sources (if any); g) Project number and institution responsible for the opinion of the Ethics Committee; h) declaration of conflicts of interest of all authors; i) registration number of clinical trials in a publicly accessible database.

* Professional or academic titles, as well as positions or finções will not be published.

Approval of the Research Ethics Committee. All studies involving primary data collection or clinical and surgical reports, are retrospective, cross-sectional or prospective, must indicate on the cover page, the project number and name of the institution that provided the opinion of the Ethics Committee. Research in humans should follow the Declaration of Helsinki, while research involving animals should follow the principles proposed by the Association for Research in Vision and Ophthalmology (ARVO).

You need to send the corresponding author, as a supplementary document, approved by the Research Ethics Committee or its opinion dismissing the evaluation of the project by the Committee. It is not for the author the decision on the need for evaluation by the Research Ethics Committee.

Declaration of Conflict of Interest. The title page should contain the declaration of conflicts of interest of all authors (even if this does not exist). For more information about potential conflicts of interest go to: Chamon W, Melo LA Jr, Paranhos A Jr. Declaração de conflito de interesse em apresentações e publicações científicas. Arq Bras Oftalmol. 2010;73(2):107-9 ou World Association of Medical Editors: Conflict of interest in peer-reviewed medical journals.

It is necessary that all authors to submit the Forms Declaration of Conflicts of Interest as supplementary documents.

Clinical Trials. All clinical trials must indicate on the cover page, registration number on an international basis of registration allowing free access to query (examples: U.S. National Institutes of Health, Australian and New Zealand Clinical Trials Registry, International Standard Randomised Controlled Trial Number - ISRCTN, University Hospital Medical Information Network Clinical Trials Registry - UMIN CTR, Nederlands Trial Register, Registros Brasileiros de Ensaios Clínicos).

2. Abstract e Keywords. Structured abstract (Purpose, Methods, Results, Conclusions) with a maximum of 300 words. Unstructured abstract with a maximum of 150 words. Name five descriptors in English, listed by the National Library of Medicine (MeSH - Medical Subject Headings).

3. Structured abstract (Objective, Methods, Results, Conclusions) with no more than 300 words. Unstructured abstract with a maximum of 150 words. Name five descriptors in Portuguese listed by BIREME.

4. Introduction, Methods, Results and Discussion. Citations in the text should be numbered sequentially in superscript Arabic numerals and brackets. It is not recommended nominal citation of authors.

5. Acknowledgments. Collaborations of people who deserve recognition, but do not justify their inclusion as authors should be cited in this section. Statistical and medical publishers can fulfill authorship criteria and in this case, should be recognized as such. When they did not meet the criteria for authorship, they must necessarily be mentioned in this section. There are accepted not identified in the manuscript writers, so professional writers should be recognized in this section.

6. References. The citation (reference) the authors in the text should be numbered sequentially in the same order they are mentioned and identified by Arabic numerals overwritten. The presentation should follow the format proposed by the International Committee of Medical Journal Editors (ICMJE), as the following examples.

The titles of journals should be abbreviated according to the style presented by the List of Journal Indexed in Index Medicus, da National Library of Medicine.

For all the references, cite all authors up to six. When working with seven or more authors, cite only the first six, followed by the expression et al.

Examples of references:

Journal Articles
Costa VP, Vasconcellos JP, Comegno PEC, José NK. O uso da mitomicina C em cirurgia combinada. Arq Bras Oftalmol. 1999;62(5):577-80.

Bicas HEA. Oftalmologia: fundamentos. São Paulo: Contexto; 1991.

Book chapters
Gómez de Liaño F, Gómez de Liaño P, Gómez de Liaño R. Exploración del niño estrábico. In: Horta-Barbosa P, editor. Estrabismo. Rio de Janeiro: Cultura Médica; 1997. p. 47-72.

Höfling-Lima AL, Belfort R Jr. Infecção herpética do recém-nascido. In: IV Congresso Brasileiro de Prevenção da Cegueira; 1980 Jul 28-30, Belo Horizonte, Brasil. Anais. Belo Horizonte; 1980. v.2. p. 205-12.

Schor P. Idealização, desenho, construção e teste de um ceratômetro cirúrgico quantitativo [tese]. São Paulo: Universidade Federal de São Paulo; 1997.

Electronic Documents
Monteiro MLR, Scapolan HB. Constrição campimétrica causada por vigabatrin. Arq Bras Oftalmol. [periódico na Internet]. 2000 [citado 2005 Jan 31]; 63(5): [cerca de 4 p.]. Disponível em:

7. Tables. The numbering of the tables should be sequential, in Arabic numerals in the order they are mentioned in the text. All tables should have title and heading for all columns and be presented in simple format, with no vertical lines or fills background. In the table footer must contain subtitle for all abbreviations (same as previously defined in the text) and statistical tests used, apart from bibliographic source when extracted from another working.

Do not include the tables in the main document, it should be sent as a supplementary document.

8. Figures (graphics, photographs, illustrations, charts). The numbering of figures should be sequential, in Arabic numerals in the order they are mentioned in the text ABO publish in black and white figures of no cost to the authors. Manuscripts with color pictures will be published only if the colored figure is deemed necessary, otherwise it will be published in black and white.

Graphics should preferably be in shades of gray, with white background and without resources that simulate three dimensions or depth. pie kind of graphics are expendable and should be replaced by tables or the information is described in the text.

Photos and illustrations must have a minimum resolution of 300 DPI for the final publication size (2,500 x 3,300 pixels for full page). The quality of the images is considered in the evaluation of the manuscript.

The main document should contain the captions of all figures in double space and numbered in Arabic numerals.

Do not include figures in the main manuscript document, these being sent as a supplementary document.

9. Abbreviations and Acronyms. When present, must be preceded by the full matching name to which they refer, when first cited, and in the legends of Figures and tables (mentioned above even if they are abbreviated in the text). They should not be used in the title and abstract.

10. units. Values of physical quantities should be reported in accordance with the standards of the International System of Units.

11. Language. The clarity of the text must be appropriate for a scientific publication. Opt for short sentences in direct and active way. When using a foreign word is absolutely necessary, it should appear with italic formatting. Therapeutic agents must be nominated by their generic names followed, in parentheses, by trade name, manufacturer, city, state and country. All instruments or used manufacturing equipment shall be cited with their product name, manufacturer, city, state and country. Placing the symbol (superscript) trademark ® or ™ in all the names of instruments or commercial drug presentations is needed. In doubt situations in relation to style, terminology, measures and related matters, the AMA Manual of Style 10th edition should be consulted.

12. Original Documents. Corresponding authors must have in their custody the original documents as the letter of approval of the institutional ethics committee for studies in humans or animals; the informed consent form signed by all patients involved, the declaration of conformity with the full content of the work signed by all authors and declaration of conflict of interest of all authors, in addition to records of the data collected for the results of the work.

13. Corrections and Retractions.Errors can be perceived after the publication of a manuscript that require the publication of a correction. However, some errors pointed out by any reader, may invalidate the results or the authorship of the manuscript. If any concrete doubt about the honesty or trustworthiness of a manuscript submitted for publication is raised, it is editor must exclude the possibility of fraud. In these situations the editor communicate the institutions involved and the funding agencies about the suspect and await the final decision of these bodies. If there is confirmation of a fraudulent publication in the ABO, the editor will follow the protocols suggested by International Committee of Medical Journal Editors (ICMJE) and the Committee on Publication Ethics (COPE).

Do List
Before you start sending your manuscript the author must confirm that all the items below are available will:

  • Manuscript formatted according to the instructions for authors.
  • Word boundaries, tables, figures and references appropriate for the type of manuscript.
  • Cover page, including the registration number of clinical trials, sent as a separate document from the main document.
  • Figures and tables are not included in the main manuscript document.
  • All figures and tables were sent separately, in digital form, as supplementary documents.
  • Declaration Form of Authors' Participation completed and saved digitally, to be sent as a supplementary document.
  • Conflicts of Interest Claims Forms of all completed and saved digitally authors, to be sent as additional documents.
  • Digital version of the opinion of the Ethics Committee with the approval of the project, to be sent as a supplementary document.

Internet Sites List

Princípios de Autoria segundo ICMJE

Formulário de Declaração de Contribuição dos Autores Contribuicao dos Autores.pdf

CONSORT  (Consolidated Standards of Reporting Trials)

STARD (Standards for the Reporting of Diagnostic accuracy studies)

PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses)

STROBE (Strengthening the Reporting of Observational studies in Epidemiology)

Interface de envio de artigos do ABO

International Committee of Medical Journal Editors (ICMJE)

Uniform requirements for manuscripts submitted to biomedical journals

Declaração de Helsinque

Princípios da Association for Research in Vision and Ophthalmology (ARVO)

Chamon W, Melo LA Jr, Paranhos A Jr. Declaração de conflito de interesse em apresentações e publicações científicas. Arq Bras Oftalmol. 2010;73(2):107-9.

World Association of Medical Editors: Conflict of interest in peer-reviewed medical journals.

Formulários para Declaração de Conflitos de Interesse

U.S. National Institutes of Health

Australian and New Zealand Clinical Trials Registry

International Standard Randomised Controlled Trial Number - ISRCTN

University Hospital Medical Information Network Clinical Trials Registry - UMIN CTR

Nederlands Trial Register

Registros Brasileiros de Ensaios Clínicos

MeSH - Medical Subject Headings

DeCS - Descritores em Ciências da Saúde

Formatação proposta pela International Committee of Medical Journal Editors (ICMJE)

List of Journal Indexed in Index Medicus

AMA Manual of Style 10th edition

Protocolos da International Committee of Medical Journal Editors (ICMJE)

Protocolos da Committee on Publication Ethics (COPE)

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