Open- and closed-loop regressions compared in myopic and emmetropic subjects

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
Charlotte A HazelFuensanta A Vera-Díaz

Abstract

Post-near task accommodation regressions have been measured in a number of studies to investigate the association between myopia and nearwork. The slow nature of the regression found when measuring both open- and closed-loop regressions in some subjects has been hypothesised to be associated with myopia development and progression. However, it is not known whether the speed and characteristics of the regression for an individual is the same under open- and closed-loop conditions. In this study we measured post-near task accommodation regression functions under open- and closed-loop conditions for myopic and emmetropic subjects. We compared the responses of each subject under the two conditions and found that some subjects responded differently depending on the condition (i.e. a fast regression under one condition and a slow regression under the other condition). When compared as a group, the myopic subjects showed significantly more prolonged open-loop regressions than closed-loop regressions. In terms of the effect on the post-task accommodation, the myopes appear to be more affected by the measurement conditions than the emmetropes in this study. The results highlight the importance of the type of accommodation stimulus when ...Continue Reading

References

Jan 1, 1991·Optometry and Vision Science : Official Publication of the American Academy of Optometry·B Gilmartin, M A Bullimore
Aug 1, 1988·Documenta Ophthalmologica. Advances in Ophthalmology·M A Bullimore, B Gilmartin
May 1, 1987·American Journal of Optometry and Physiological Optics·M R O'Neal, T R Connon
Jan 1, 1994·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·N C StrangB Gilmartin
Oct 1, 1993·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·L C WoungS Ishikawa
Jan 1, 1995·Documenta Ophthalmologica. Advances in Ophthalmology·E Ong, K J Ciuffreda
Jun 22, 1999·Optometry and Vision Science : Official Publication of the American Academy of Optometry·M Rosenfield, J A Abraham-Cohen
Jul 23, 1999·Current Eye Research·G K Hung, K J Ciuffreda
Jan 1, 2000·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·M Rosenfield, B Gilmartin
Jan 1, 2000·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·B C Jiang, S E Morse
Dec 29, 2000·Bulletin of Mathematical Biology·G K Hung, K J Ciuffreda
Mar 23, 2001·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·R W Li, M H Edwards
Jan 26, 2002·Vision Research·Katrina L SchmidJohn K F Lew
Sep 27, 2002·Current Eye Research·Fuensanta A Vera-DíazBarry Winn
Oct 3, 2002·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·B GilmartinJ S Wolffsohn
Oct 3, 2002·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Kenneth J Ciuffreda, Melissa Lee

❮ Previous
Next ❯

Citations

Jul 13, 2005·Vision Research·Peter M Allen, Daniel J O'Leary
Sep 28, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Farid KarimianAnahita Amin-Shokravi

❮ 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)
K J Ciuffreda, Melissa Lee
Investigative Ophthalmology & Visual Science
James Stuart WolffsohnBibianna S Y Yu
Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
M L AbbottN C Strang
Optometry and Vision Science : Official Publication of the American Academy of Optometry
B Gilmartin, M A Bullimore
Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
N C StrangB Gilmartin
© 2022 Meta ULC. All rights reserved