The casual level of meibomian lipids in humans
| Autor: | John M. Tiffany, C. Jansweijer, Anthony J. Bron, C. K. S. Chew, P. G. Hykin, Shabtay Dikstein |
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| Rok vydání: | 1993 |
| Předmět: |
Adult
Male Aging medicine.medical_specialty Adolescent Meibomian gland Biology Cellular and Molecular Neuroscience Sex Factors Reference Values Sex factors Internal medicine Skin surface medicine Humans Child Aged Skin Aged 80 and over Lid margin Age Factors Eyelids Infant Meibomian Glands Middle Aged Lipids Sensory Systems Ophthalmology medicine.anatomical_structure Endocrinology Child Preschool Reference values Female sense organs |
| Zdroj: | Current Eye Research. 12:255-259 |
| ISSN: | 1460-2202 0271-3683 |
| DOI: | 10.3109/02713689308999471 |
| Popis: | Using a modified skin surface lipid measuring instrument, the Meibometer, the amounts of meibomian lipid on the lid margins (the casual levels) of 421 subjects aged 1 to 94 years were measured. The lowest levels were found in children younger than 14 years (means +/- S.E.: males = 1.48 +/- 0.17, females = 1.53 +/- 0.17 micrograms lipid/mm2 lid margin surface) and rose with age, the highest levels being found in males aged 60-69 years (mean +/- S.E. = 3.26 +/- 0.18 micrograms lipid/mm2 lid margin surface). Male levels were higher than females in the 20-29 years age group but male and female levels became indistinguishable above the age of 50. These age- and sex-related changes differed markedly from those seen in skin surface lipid levels. The age-related changes in the casual levels of lid lipids remain unexplained although an endocrinological mechanism modified by morphological factors is considered. |
| Databáze: | OpenAIRE |
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