Managing keratoconus with reverse-geometry and dual-geometry contact lenses: a case report

Eye & Contact Lens
Chao-Yu Hu, Hsiao-Ching Tung

Abstract

To present a case of keratoconus successfully managed with various rigid gas-permeable contact lenses with reverse-geometry and dual-geometry designs. Case report. The steepest topographic keratometric readings of a 30-year-old woman with keratoconus were 62.18 diopters in the right eye and 54.70 diopters in the left eye. A conventional reverse-geometry lens worked well in the left eye. The more distorted right eye was fitted with a series of different reverse-geometry and dual-geometry lenses. Her visual acuity was 20/20 in each eye when she wore contact lenses during the day. Unaided vision was as good as 20/25+ in the right eye and 20/20 in the left eye for several hours after lens removal. No significant complication occurred during 42 months of follow-up. Keratoconus is a corneal disease characterized by progressive stromal thinning and ectasia, typically in the inferior cornea. Rigid gas-permeable contact lenses are the most common management option to improve vision. Corneal surgery, such as keratoplasty, is the next choice when contact lenses are ineffective or intolerable. The large overall diameter and contact area of reverse-geometry and dual-geometry lenses can assist in stabilizing the lenses on distorted corneas. ...Continue Reading

References

Jan 15, 1988·American Journal of Ophthalmology·S L ForstotD K Dukes
Jun 1, 1996·Optometry and Vision Science : Official Publication of the American Academy of Optometry·T B EdringtonM O Gordon
Dec 24, 1997·Optometry and Vision Science : Official Publication of the American Academy of Optometry·R Mattioli, N K Tripoli
Mar 11, 1998·Survey of Ophthalmology·Y S Rabinowitz
Oct 19, 1999·Optometry and Vision Science : Official Publication of the American Academy of Optometry·T B EdringtonK Zadnik
Jul 13, 2000·Ophthalmology·A TomidokoroK Miyata
Sep 12, 2000·Archives of Ophthalmology·M K Smolek, S D Klyce
Apr 8, 2004·Clinical & Experimental Ophthalmology·Trevor Sherwin, Nigel H Brookes
Oct 23, 2004·Eye & Contact Lens·Charles W McMonnies
Apr 28, 2005·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Joanna G HollingsworthAndrew B Tullo
May 17, 2005·Eye & Contact Lens·Jill LiuJan P G Bergmanson
Oct 18, 2005·American Journal of Ophthalmology·Sherman W ReevesNatalie A Afshari
Nov 24, 2005·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·L SorbaraD Fonn
Nov 24, 2005·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Patrick M LadageH Dwight Cavanagh
Nov 24, 2005·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·M Cristina Kenney, Donald J Brown
Nov 24, 2005·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·R LagnadoH S Dua
Dec 17, 2005·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Karla ZadnikUNKNOWN Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group

❮ Previous
Next ❯

Citations

Dec 12, 2012·Japanese Journal of Ophthalmology·Ryoji YanaiKoh-Hei Sonoda
Sep 10, 2008·Eye & Contact Lens·Loretta B Szczotka-Flynn, Shamil Patel
Jun 12, 2010·Eye & Contact Lens·Preeji Mandathara SudharmanSrikanth Dumapati
Mar 29, 2014·Middle East African Journal of Ophthalmology·Raghav GuptaJeewan S Titiyal
Jun 15, 2011·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Kristine Dalton, Luigina Sorbara
Jun 12, 2010·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Miguel Romero-JiménezJames S Wolffsohn
Feb 13, 2018·Journal of Ophthalmology·L Rico-Del-ViejoA Lorente-Velázquez

❮ 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

Optometry and Vision Science : Official Publication of the American Academy of Optometry
Aaron M BettsK Zadnik
Optometry and Vision Science : Official Publication of the American Academy of Optometry
T B EdringtonCLEK STUDY GROUP
© 2021 Meta ULC. All rights reserved