Tags

Type your tag names separated by a space and hit enter

Accommodation, pupil diameter and myopia.
Ophthalmic Physiol Opt. 2009 Jan; 29(1):72-9.OP

Abstract

Concurrent measurements of steady-state accommodation response/stimulus curves and of pupil diameter were made in groups (n = 20) of young, adult myopes [age (mean +/- SD) 23.1 +/- 4.5 years, mean-sphere error (MSE) -3.06 +/- 2.35 D, range -0.60 to -8.54 D] and emmetropes (mean age 25.3 +/- 5.7 years, mean MSE -0.07 +/- 0.26 D, range -0.50 to +0.50 D). The aim of this study was to explore the possibilities that pupil diameters with relaxed accommodation were larger, and that accommodative miosis was weaker, in the myopic group. Such behaviour would lead to relatively greater degradation of the retinal images in the myopic group, even though aberrations at constant pupil diameter and dioptric accommodative lags in the two groups were the same: this might result in excessive axial growth and further myopia development. No evidence for any systematic refractive dependence of pupillary characteristics or accommodative responses was found. Interestingly, those subjects whose response/stimulus curves had a higher slope tended to display greater accommodative miosis, irrespective of their refractive error.

Authors+Show Affiliations

Faculty of Life Sciences, University of Manchester, Manchester, UK.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19154283

Citation

Charman, W Neil, and Hema Radhakrishnan. "Accommodation, Pupil Diameter and Myopia." Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists), vol. 29, no. 1, 2009, pp. 72-9.
Charman WN, Radhakrishnan H. Accommodation, pupil diameter and myopia. Ophthalmic Physiol Opt. 2009;29(1):72-9.
Charman, W. N., & Radhakrishnan, H. (2009). Accommodation, pupil diameter and myopia. Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists), 29(1), 72-9. https://doi.org/10.1111/j.1475-1313.2008.00611.x
Charman WN, Radhakrishnan H. Accommodation, Pupil Diameter and Myopia. Ophthalmic Physiol Opt. 2009;29(1):72-9. PubMed PMID: 19154283.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Accommodation, pupil diameter and myopia. AU - Charman,W Neil, AU - Radhakrishnan,Hema, PY - 2009/1/22/entrez PY - 2009/1/22/pubmed PY - 2009/6/19/medline SP - 72 EP - 9 JF - Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) JO - Ophthalmic Physiol Opt VL - 29 IS - 1 N2 - Concurrent measurements of steady-state accommodation response/stimulus curves and of pupil diameter were made in groups (n = 20) of young, adult myopes [age (mean +/- SD) 23.1 +/- 4.5 years, mean-sphere error (MSE) -3.06 +/- 2.35 D, range -0.60 to -8.54 D] and emmetropes (mean age 25.3 +/- 5.7 years, mean MSE -0.07 +/- 0.26 D, range -0.50 to +0.50 D). The aim of this study was to explore the possibilities that pupil diameters with relaxed accommodation were larger, and that accommodative miosis was weaker, in the myopic group. Such behaviour would lead to relatively greater degradation of the retinal images in the myopic group, even though aberrations at constant pupil diameter and dioptric accommodative lags in the two groups were the same: this might result in excessive axial growth and further myopia development. No evidence for any systematic refractive dependence of pupillary characteristics or accommodative responses was found. Interestingly, those subjects whose response/stimulus curves had a higher slope tended to display greater accommodative miosis, irrespective of their refractive error. SN - 1475-1313 UR - https://www.unboundmedicine.com/medline/citation/19154283/Accommodation_pupil_diameter_and_myopia_ L2 - https://doi.org/10.1111/j.1475-1313.2008.00611.x DB - PRIME DP - Unbound Medicine ER -