Changes in anterior chamber depth during accommodation: a pilot study
2013
PURPOSE: To study anterior chamber depth (ACD) behaviour in different positions, with
different degrees of accommodation.
SETTING: Academic department associated to a regional hospital.
METHODS: ACD data were acquired from 20 young, healthy subjects under 8 different
vergences, from +2 dioptres (D) to –5 D using a Pentacam HR device. Measurements were
taken for the central zone of the ACD and for 4 more positions, each in a different direction
(superior, inferior, nasal and temporal), 2 mm from the centre.
RESULTS: Changes in each position of the ACD resulting from accommodation were
small and generally insignificant (P > 0.05). The statistically deepest ACD value for all
vergences was found at the central position. The superior-nasal and temporal-inferior pairs
did not show statistically significant differences (P > 0.05) for all vergences. In addition,
temporal and inferior chamber depths were statistically significantly deeper (P < 0.05) than
superior and nasal chamber depths.
CONCLUSIONS: While the central position presents the deepest ACD, the superiornasal
pair presents the narrowest ACD. No significant changes in ACD occur after 5 D of
accommodation.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
10
References
0
Citations
NaN
KQI