1. Articles should be original works, case reports, reviews or invited papers related to optometry, contact lens studies, ocular examinations, visual optics, ophthalmology, or clinical case studies. If not related to the foregoing topics, the editorial board will determine whether it can be published.

2. Articles must be neither published nor under a review process in other journals.

3. Authors are responsible for the contents of their article and must not submit their works to other journals until the article has been accepted by the editorial board.

4. Once the article has been accepted, its copyrights belong to the Korean Opthalmic Optics Society (KOOS) and it cannot be published in another journal without permission from KOOS.

1. Except for articles requested by the editorial board, the first author and the communication authors of the article submitted to KOOS must be members of KOOS.

2. For the submission, you must submit the manuscript and the completed designated submission forms 〔Pledge of Research Ethics, Copyright Transfer Agreement and Personal Information Utilization Agreement, Similarity Test Result, Author Checklist Form, and ORCID (included in the final version)〕 through the Journal of Korean Ophthalmic Optics Society paper submission webpage (https://koos.jams.or.kr).

3. The submitted article will be reviewed by more than three reviewers and permitted for publishing by the editorial board if the same is warranted. The reviewers who are experts in the domain of the submitted article shall be elected by the editorial board.

4. The article is orderly published according to the field of study (optometry, contact lens studies, ocular examinations, visual optics, ophthalmology, or clinical case studies) and submission date.

5. The Journal of KOOS is published quarterly (March 31, June 30, September 30, and December 31).

6. If the edited article requested by the editorial board is not re-submitted within the 12-month period after the initial notification, it will be considered to have been redacted and the publication fee paid will not be refunded.

7. The submitted article is not returned to the authors regardless of selection of the article for publication.

8. Publication details and selected forms are available on the KOOS homepage (www.koos.or.kr).

9. Other correspondences can be sent by e-mail to the academic director.

1. 1. Articles should be written in Korean or English on A4 paper (210 ㎜ x 297 ㎜) with only one column.

2. Figures (photographs) and tables should be large enough to be reviewed and be placed at the end of the article. Details and explanation for each of them have to be written in English, starting with “Fig.” and “Table”.

3. The contents of the article must follow the subsequent format:

1. References regarded as officially reviewed data must be written in English. Any references that are not cited in the main text cannot be listed.

2. When citing statistical data in the table of the article, references should be included at the bottom of the table.

3. In-text citations should be presented just after a period (.) or a comma (,), with parentheses and reference number in the text such as ^{[3], [1,3], [1-3]}. The reference list is ordered in the order of their appearance in the text, with parentheses and Arabic numerals such as [1], [2], etc.

4. The reference list must include all authors up to three. However, the first three shall be listed then followed by “~, et al.” in the case of more than three authors. For the in-text citations, a work by two authors ought to use both last names of the authors. A work by more than three authors should have the last name of the first author followed by “et al.”.

5. Examples of references

1. There is a one-time mandatory submission fee of ￦60,000 for each article submitted to KOOS, which should be paid to the bank account of KOOS before the submitted article is reviewed.

2. Once the article is accepted by the editorial board, the corresponding author has to pay the publication fee and the additional charges for extra pages, design, editing, and so on. However, the requested articles are free of charge.

3. Publication fee for up to 5 pages is ￦100,000; additional fee for extra pages can be charged, with ￦20,000 per extra page.

4. Thirty extra issues can be given to the corresponding author. If extra issues are requested, an additional fee will be charged.

1. The corresponding author must submit the corresponding “Copyright transfer agreement” to the editorial board of KOOS. The copyright of the submitted as well as an author agreement form transferring copyright to KOOS after the final draft shall be submitted.

2. After the copyright is transferred to KOOS, the entire contents of the article cannot be used in another publication, but the use of some of its parts is acceptable. In this case, the corresponding author must apply for an author agreement form using the copyright to KOOS and show the proof of publication through KOOS (journal title, volume number(issue number), year, etc.).

1. For the policies on the research and publication ethics not stated in these instructions, the international standards for editors and authors (https://publicationethics.org/resources/resources-and-further-reading/international-standards-editors-and-authors) shall be followed.

2. If any research misconduct is discovered, the matter will be dealt with in accordance with the code of research ethics of KOOS.

1. Biological sex or socio-cultural gender, as factors that can affect the outcome in cell experiments, animal experiments, or clinical studies (all studies on humans), must be described after recognizing the following items: