Modern scleral lenses: Mini versus large

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
Daddi Fadel

Abstract

The evolution of scleral lenses has led to new formulations of scleral fitting concepts and designs. The diameters of modern scleral lenses have been overhauled too and they are smaller comparing to the original ones. Nowadays, prescription of mini-sclerals supposedly seems in major extension and it appears indeed the necessity of some practitioner to differentiate the smaller mini-scleral lenses from larger mini-scleral lenses empathizing that they are the "smaller" ones. Therefore, it is maybe, necessary a definition of mini-scleral lenses referring to the landing zone width in relation to the horizontal visible iris diameter (HVID) and the limbus extension. The choice of the total diameter is crucial for a successful fitting and it depends majorly on patient's topographic patterns and anatomic factors. However, there are other important criteria for the selection of the scleral lens diameter based on oxygen supply, bubbles formation, mechanical stress on a toric sclera, ocular surface disease protection, entity of the vault over the cornea and distribution of the lens weight on the sclera. The advantages of mini-scleral lenses are various nonetheless in some cases large lenses are necessary. This paper presents a review of t...Continue Reading

References

Feb 27, 2016·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Arthur SheddenMichelle Mundorf

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Citations

Aug 1, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Stephen J VincentMichael J Collins
Oct 9, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Tarnveer S BhamraJiffan Li
Aug 23, 2019·Eye & Contact Lens·Esteban PorcarCristina Peris-Martínez
Oct 17, 2020·Vestnik oftalmologii·A V MyagkovL R Bunyatova
Mar 30, 2021·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Melissa BarnettPhilip B Morgan
Apr 22, 2021·Vestnik oftalmologii·K FedotovaV P Nikolaenko

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