John Weiss hosts successful ‘Remodelling the Cornea & Managing Disease with KERARING Segments’ webinar

Harlow, UK – 28th September 2021 - John Weiss & Son, the leading manufacturer and distributor of gold-standard ophthalmic micro-surgical instruments and procedures hosted a very successful webinar entitled ‘Remodelling the Cornea & Managing Disease with KERARING Segments’ on 23rd September 2021.

Mediphacos' KERARING intrastromal corneal ring segments are the most complete and versatile corneal remodelling system in the World. These precision implantable devices are used to correct corneal surface irregularities and reduce refractive errors associated with keratoconus and other corneal ectatic disorders.

The ‘Remodelling the Cornea & Managing Disease with KERARING Segments’ webinar discussed a wide range of topics, including; ‘Surgical Technique’, ‘Patient Selection Criteria’ and ‘The Surgeon’s Aim & Goals When Using KERARING’. Other key areas covered by the webinar included; ‘How to Build Implantation into Keratoconus Treatment Protocols for the Greatest Effect’, ‘Using the Nomogram for Surgical Planning’ and ‘Customisation Using Both the Standard and the AS Progressive KERARING Range’.

The webinar was hosted by Mr Mathew Raynor, Consultant Ophthalmic Surgeon at Sheffield Teaching Hospitals NHS Foundation Trust. Mathew is a very experienced user of KERARING intrastromal corneal ring segments and presented some interesting case studies and success stories. The main theme of Mathew’s presentation was surgical planning, with a particular focus on using the Alfonso classification system to determine the cone type and the corresponding ring type required to maximise keratoconus correction.

Grant Duncan, John Weiss Clinical and Education Training Manager, said, “We were delighted with the success of the KERARING webinar. The Q & A section at the end sparked some lively debate, along with some very interesting questions. I’d like to extend a big thank you to Mathew Raynor and, of course, all those who attended, we look forward to hosting similar webinars in the future.”

A video of the webinar is now available to watch on the John Weiss YouTube channel at

For further information on KERARING intrastromal corneal segments, please email or visit

Press release distributed by Pressat on behalf of John Weiss & Son, on Tuesday 28 September, 2021. For more information subscribe and follow

Ophthalmology Cornea Keraring Keratoconus Health Medical & Pharmaceutical
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John Weiss hosts successful ‘Remodelling the Cornea & Managing Disease with KERARING Segments’ webinar