Distribution of the postoperative astigmatism
Updated on version: 1.0.0


This function computes the distribution of the refractive postoperative cylinder according to the Standard for Reporting Refractive Outcomes.


Distribution of the postoperative astigmatism


This graph is required for all studies to show the distribution of manifest refractive cylinder before and after surgery. However, because of the unreliability of the preoperative manifest refraction in the presence of a cataract, only the postoperative data are necessary for a cataract population.


  1. Reinstein DZ, Archer TJ, Randleman JB. JRS Standard for Reporting Astigmatism Outcomes of Refractive Surgery. J Refract Surg. 2014; 30: 654–9.
  2. Reinstein DZ, Archer TJ, Srinivasan S, et al. Standard for Reporting Refractive Outcomes of Intraocular Lens–Based Refractive Surgery. J Refract Surg. 2017; 33: 218–22.

Online Course

How to obtain the Toolbox?

The Refractive Analysis is an Open Source Toolbox for Matlab developed by Rodríguez-Vallejo M for the Analysis of Vision Science Results. It is freely available for the students of our online course but you need the Matlab software to use it. Matlab software is not provided with the course.

How to enroll and follow the course?

You can enroll in the course by means of the Udemy Platform and follow the course on the same platform or through Udemy App for IOS or Android.

When the course starts and finish?

The course is asynchronous which means that it has no start or end date. The student can register whenever he wants and view the materials at his own pace.

After purchasing the course you will have lifetime access to the materials through the Udemy platform. This means that even if you complete the visualization of all the materials you will be able to access them again whenever you want to go over the content again or to the updates.

Will I have a certificate once I finish the course?

When you complete the visualization of all course materials, Udemy will provide you a certificate of course completion. You will not have to take any tests to obtain this certificate, only complete the viewing of the materials.

Join Our Facebook Group

Access to our Facebook Group to keep you up to date with the latest news or to get support

Go now!

Terms & Conditions

Review the Terms & Conditions before to use our Apps and Courses

Review now!

Review Privacy Policy of this website

Review now!