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Results for “ACCOMMODATION (OCULAR)”

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PubMedDate not supplied

Myopia--a treatable "disease"?

The authors cite various information and misinformation regarding proposed treatments (atropinization, contact lenses, orthokeratology, wearing glasses, not wearing glasses) for the progression of myopia. They conclude that there is insufficient evidence to support the more vigorous approaches to treatment of myopia, and provide some useful explantations for patients and their parents who question the ophthalmologist's decision to treat conservatively.

Accommodation, Ocular↗
PubMedDate not supplied

Night myopia.

Although the phenomenon of night myopia has been recognized for two centuries, its causes are still not fully understood. Early studies implicated spherical aberration and accommodation, but the degree to which either contributed was not clearly established. More recently, "laser speckle" techniques to measure myopia have allowed the collection of data on large subject populations and it appears that night myopia represents a tendency for accommodation to approximate the dark focus as low luminance levels degrade the clarity of the retinal image. In this article, the authors review the past and present literature on night myopia and related anomalous myopias, and describe techniques for their evaluation and correction.

Accommodation, Ocular↗
PubMedDate not supplied

Presbyopia toward the end of the 20th century.

Recent advances in our understanding of the anatomy and physiology of accommodation have contributed to current concepts of the possible constituent factors in presbyopia, largely supplanting the long-held belief that presbyopia is due to sclerosis of the crystalline lens. In this review, the author examines epidemiologic, basic scientific, and clinical evidence for a multifactorial decrease in accommodative amplitude with age. Methods of measurement, oculomotor effects of presbyopia, and approaches to correcting it are also considered.

Accommodation, Ocular↗