STUDY OF THE DEPTH OF THE ANTERIOR CHAMBER. PHYSIOLOGIC VARIATIONS WITH PARTICULAR EMPHASIS ON AMETROPIA.
Abstract
The Jaeger instrument was used to measure the depth of the anterior chamber on 114 subjects. The data were analyzed to establish the role of hyperopia, myopia, sex, age, and accommodation in physiologic variations of the anterior chamber depth. The mean depth of the anterior chamber (3.58 plus or minus 0.04 mm.) increases regularly during the growing years, reaching a maximum of 3.76 mm. in the young adult of 20 to 30 years, and then decreases with increasing age to 3.23 mm. at 50 to 80 years of age. The depth of the chamber diminishes when one passes from myopia to hyperopia. As hyperopia increases, the depth of the chamber decreases but there is no strict relationship between the degree of myopia and chamber depth. Men show greater chamber depth than women at all age levels. With accommodation relaxed, the depth of the chamber was shallower than with proximal accommodation. Atropine instillation gave a mean increase of the chamber depth of approximately 0.07 mm. Diisopropyl-fluorophosphate DFP showed a general decrease in chamber depth of 0.10 mm. but miosis rendered measurements difficult and insufficient numbers of subjects limit the validity of DFP data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0477185
Entities
Organizations
- United States Air Force School of Aerospace Medicine