Corneal changes following short-term rigid contact lens wear

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
Garima TyagiBrett A Davis

Abstract

The aim of this cross-over study was to investigate the changes in corneal thickness, anterior and posterior corneal topography, corneal refractive power and ocular wavefront aberrations, following the short term use of rigid contact lenses. Fourteen participants wore 4 different types of contact lenses (RGP lenses of 9.5mm and 10.5mm diameter, and for comparison a PMMA lens of 9.5mm diameter and a soft silicone hydrogel lens) on 4 different days for a period of 8h on each day. Measures were collected before and after contact lens wear and additionally on a baseline day. Anterior corneal curvature generally showed a flattening with both of the RGP lenses and a steepening with the PMMA lens. A significant negative correlation was found between the change in corneal swelling and central and peripheral posterior corneal curvature (all p ≤ 0.001). RGP contact lenses caused a significant decrease in corneal refractive power (hyperopic shift) of approximately 0.5D. The PMMA contact lenses caused the greatest corneal swelling in both the central (27.92 ± 15.49 μm, p<0.001) and peripheral (17.78 ± 12.11 μm, p=0.001) corneal regions, a significant flattening of the posterior cornea and an increase in ocular aberrations (all p ≤ 0.05). T...Continue Reading

References

Apr 1, 1977·American Journal of Optometry and Physiological Optics·M D SarverM G Harris
Aug 1, 1985·American Journal of Optometry and Physiological Optics·M J DeRubeis, B G Shily
Dec 1, 1982·American Journal of Optometry and Physiological Optics·P M KielyG Smith
Oct 1, 1982·The British Journal of Ophthalmology·J P Bergmanson, L W Chu
Dec 1, 1996·The British Journal of Ophthalmology·C L HarperA E Ridgway
Jun 1, 1997·Optometry and Vision Science : Official Publication of the American Academy of Optometry·L N ThibosD Horner
Jun 9, 2001·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·E Yebra-PimentelM Febrero
Jul 13, 2002·Journal of Biomedical Materials Research·Antonio López-AlemanyMiguel F Refojo
Feb 26, 2003·Investigative Ophthalmology & Visual Science·Jianhua WangTrefford L Simpson
Mar 15, 2003·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Ramkumar Sridharan, Helen Swarbrick
Oct 14, 2003·Eye & Contact Lens·Bariş YeniadLale Közer Bilgin
Mar 17, 2004·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Amir M MoezziLuigina Sorbara
Jun 25, 2005·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jaikishan Jayakumar, Helen A Swarbrick
Mar 3, 2007·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Chris Steele, John Davidson
Oct 5, 2007·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Jennifer D ChooBrien A Holden
Aug 30, 2008·Journal of Cataract and Refractive Surgery·Alyra J ShawLeo G Carney
Feb 3, 2009·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Scott A Read, Michael J Collins
Jun 1, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Garima TyagiBrett Davis

❮ Previous
Next ❯

Citations

Jul 23, 2014·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Sven Jonuscheit
Mar 4, 2014·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Victoria de JuanJaume Pujol
Sep 10, 2014·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Stephen J VincentMichael J Collins
Dec 23, 2015·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Stephen J VincentMichael J Collins
Mar 20, 2018·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Vinay Kumar NilagiriShrikant R Bharadwaj
Sep 26, 2017·Eye & Contact Lens·Juan C MontaltCristina Peris-Martínez
May 22, 2020·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Mukesh KumarStephen J Vincent
Jan 30, 2020·Scientific Reports·Vinay Kumar NilagiriShrikant R Bharadwaj

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
Jaume PujolMontserrat Arjona
© 2022 Meta ULC. All rights reserved