man with glasses smiling

In the Zone

Here is the ZONE.

This is supposed to show that perfect spectacle-free vision is a zone within which people don’t need glasses. It is trying to show that it is not a number like zero but a zone of focus within which people can see clearly without glasses or contacts. If the focus of your eyes falls within the grey area you are spectacle free. As your focus falls further and further away from the grey zone your spectacle requirement increases.
Example: someones focus is -0.6 myopic and +0.4 astigmatism they are highly unlikely to need glasses to see.
Example: focus is -1.2 myopic and -0.7 astigmatism they are very likely to want to wear glasses to see clearly.
The purpose for the laser treatment is to get the focus into the grey zone not necessarily on “zero.”

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About Our London Eye Clinic Experts

Meet the My-iClinic founders, Mr John Bolger and Ms Bola Odufuwa. Two consultant eye surgeons who made it their life goal to make your life better.

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Bola Odufuwa-Bolger

Consultant Ophthalmologist
Clinic Director

Bola Odufuwa is a consultant ophthalmologist at The Royal Free Hospital and My-iClinic. Her specialities include cataract, glaucoma, paediatric, and laser refractive surgery. Bola has had extensive training at Moorfields Eye Hospital, London, where she gained expertise in the management of various eye conditions.

Bola Odufuwa’s special interests include optimal refractive outcomes following cataract surgery, non-penetrating glaucoma surgery, and assessment eyesight in children with special needs: particularly dyslexia and autism.

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Mr John Bolger

Consultant Ophthalmologist
Clinic Director

John Bolger is a Consultant Ophthalmologist and Clinic Director at My-iClinic. His specialities include ophthalmology, laser refractive surgery (SMILE, Presbyond, LASIK, PRK, PTK), refractive lens exchange (RLE), cataract surgery, glaucoma treatment and macular degeneration.

Over the course of his career, John Bolger has carried out over 35,000 cataract operations, 20 of which were for eye surgeons. He has also taught over 1500 young ophthalmologists worldwide as they begin their surgical careers.