AI Article Synopsis
- The study analyzed the anterior segment parameters of 36 sedated dogs across three age groups (1-5 years, 6-10 years, 11-15 years) using a Pentacam HR Scheimpflug camera.
- Key measurements included central corneal thickness (CCT), corneal elevation metrics, curvature, volume, astigmatism, and anterior chamber parameters, with notable findings like a significant increase in corneal volume between the first two age groups.
- Results showed that while CCT increased across ages, the difference was not statistically significant, and no other major differences were observed among the age groups.
Article Abstract
Objective: To describe and compare normative anterior segment parameters between canine age groups using the Pentacam HR Scheimpflug camera (Pentacam).
Animals Studied: Thirty-six sedated dogs (60 eyes) of varying ages and breeds were imaged with the Pentacam; only nondiseased anterior segments were included.
Procedures: Dogs were divided into three age groups: Group 1 (1-5 years), Group 2 (6-10 years), and Group 3 (11-15 years). Values assessed included central corneal thickness (CCT), anterior and posterior corneal elevation (ACE/PCE), anterior and posterior corneal curvature metrics, corneal volume (CV), anterior and posterior corneal astigmatism (AA/PA), anterior chamber depth (ACD), anterior chamber volume (ACV), and anterior chamber angle (ACA). Tukey-adjusted pairwise comparisons were performed.
Results: Overall CCT (mean ± SD) was 631.07 ± 59.91 µm. Central corneal thickness was 608.60 ± 48.63 µm for Group 1, 648.57 ± 51.06 µm for Group 2, and 635.37 ± 73.71 µm for Group 3. Anterior corneal elevation (ACE) measured 9.08 ± 0.58 mm, PCE measured 8.04 ± 0.50 mm, and CV was 58.13 ± 5.39 mm . Astigmatism values were 1.34 ± 0.94 D for AA and 0.46 ± 0.44 D for PA. Anterior chamber values were 3.76 ± 0.56 mm for ACD, 383.68 ± 66.24 mm for ACV, and 23.62 ± 29.33˚ for ACA. Significant differences were found between Groups 1 and 2 for CV (55.08 ± 4.08 mm and 60.32 ± 4.19 mm , respectively), (P = 0.02).
Conclusions: Corneal volume significantly increased between Group 1 and Group 2. Central corneal thickness increased from Group 1 to Group 3, but was not significant with the current sample size. There were no other differences between age groups.
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| http://dx.doi.org/10.1111/vop.12642 | DOI Listing |
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