Terms of Use
IOL Calculator — software for calculating intraocular lens power, intended solely for educational and research purposes. The Service is not a medical device within the meaning of Part 1, Art. 38 of Federal Law No. 323-FZ of November 21, 2011, and is not registered with the Federal Service for Surveillance in Healthcare (Roszdravnadzor, the Russian medical-device regulator). Calculation results are informational and for reference only and do not constitute a guide to action.
Acceptance of the terms
By using the service located at iolcalc.ru and иолкалькулятор.рф (hereinafter the «Service»), you confirm that you have read these terms and accept them in full. If you do not agree with the terms, please refrain from using the Service.
Purpose and legal status
The Service performs a mathematical calculation of intraocular lens power using published vergence formulas and is not intended for the provision of medical care. In accordance with Roszdravnadzor information letter No. 02I-297/20 of February 13, 2020, software of a reference, informational, and educational nature is not a medical device.
The Service does not automatically interpret results, does not issue clinical recommendations, and does not influence clinical decision-making. The choice of treatment method and intraocular lens parameters is made independently by a qualified ophthalmologist, based on the patient's individual clinical data, clinical guidelines, and standards of medical care (Arts. 37, 73 of Federal Law No. 323-FZ of November 21, 2011 «On the Fundamentals of Protecting the Health of Citizens in the Russian Federation»).
Provision of the service
The Service is provided on an «as is» (as is) basis without any warranties, express or implied, including warranties of fitness for a particular purpose, accuracy, or completeness of results.
The developer does not guarantee uninterrupted and error-free operation of the Service and reserves the right to modify, suspend, or discontinue the Service (in whole or in part) without prior notice.
The Service is provided free of charge; no registration is required.
Limitation of liability
The developer is not liable for any consequences (direct or indirect) arising from the use of, or inability to use, the Service, including:
- inaccuracy or error in calculation results;
- clinical decisions made on the basis of the Service's results;
- service interruptions, data loss, or unavailability of the Service.
A physician using the Service independently determines the patient's treatment strategy and bears full responsibility for the refractive outcome of the surgical intervention.
Data protection
The Service does not store the calculation parameters you enter. All data is processed in memory for the duration of the request and destroyed once the result is produced. The user undertakes to enter only de-identified data that cannot identify a specific patient.
For more on data processing, analytics, and error monitoring, see the Privacy Policy.
Mention of IOL models
Trade names of intraocular lenses, their optical constants, and manufacturer names are used in the Service solely for reference and informational purposes to identify IOL constants during calculation. This information does not constitute advertising of medical devices within the meaning of Arts. 3 and 24 of Federal Law No. 38-FZ of March 13, 2006 «On Advertising». The Service does not promote or recommend specific lens models. Trademarks belong to their respective owners.
Intellectual property
The source code of the Service, including the original implementation of the APEX algorithm, the user interface, and the design, is protected by copyright in accordance with Arts. 1259 and 1261 of the Civil Code of the Russian Federation (Part Four). No registration of the work is required for copyright to arise or be protected (Clause 4, Art. 1259 of the Civil Code of the Russian Federation).
The mathematical IOL calculation formulas (SRK/T, Hoffer Q, Holladay 1, Haigis, Castrop, PEARL-DGS, etc.) described in scientific publications are not subject to copyright (Clause 5, Art. 1259 of the Civil Code of the Russian Federation: «methods, processes, systems, and means» are not protected).
Lawful use
The Service may be used only for lawful purposes. It is prohibited to use the Service in any manner that violates applicable law, as well as to attempt unauthorized access to the Service, the server, or the database.
Changes to the terms
The developer may make changes to these terms. The current version is posted on this page with the date of the latest revision. Continued use of the Service after changes are made constitutes acceptance of the new version.
Governing law
These terms are governed by and construed in accordance with the laws of the Russian Federation. All disputes arising in connection with the use of the Service shall be resolved in accordance with the applicable laws of the Russian Federation.
Contacts
For all questions related to the operation of the Service and these terms: info@iolcalc.ru.