DISTRIBUTION OF OCULAR HIGHER ORDER ABERRATIONS FOR TWO AGE GROUPS

Published 2022 - 26th ESCRS Winter Meeting

Reference: P212 | Type: Abstracts | DOI: 10.82333/djt5-hq06

Authors: Gerd Uwe Auffarth* ¹ , Giacomo Savini ²

¹Dept. of Ophthalmology,University Hospital of Heidelberg,Heidelberg,Germany, ²I.R.C.C.S.-G.B. Bietti Foundation,I.R.C.C.S.-G.B. Bietti Foundation,Rom,Italy

Purpose

To investigate the distribution of ocular higher order aberrations in healthy eyes for a younger and an elderly population

Setting

Dept. of Ophthalmology, University of Heidelberg, Germany

Methods

In this ongoing study, phakic eyes without any known ocular pathologies were measured with the Pentacam AXL Wave. These Measurements (only measurements with good quality scores were included) were retrospectively analysed according to the ocular higher order aberrations (HOA). The data was clustered with respect to the age of the patients into two groups – a younger (≤ 50 years) and an elderly (> 50 years) group. The HOA of the 3^rd and 4^th order (Trefoil, Coma and Spherical Aberrations) were analysed always for the optical zones of 2, 3 and 4mm. Mean values and standard deviations were calculated for both study groups, means were compared with an independent t-test

Results

Until now 216 patients (179 right and 174 left eyes) took part in this study. The younger (Y) group consists of 191 eyes and the patients were on average 32 ±9,4 years old. In the elderly (E) group 162 eyes were included and patient were on average 65 ±10,2 years old. Trefoil_2mm: mean=0,018_Y/0,043_E µm* ±0,012_Y/0,044_E; Trefoil_3mm: mean=0,037_Y/0,072_E µm* ±0,024_Y/0,052_E; Trefoil_4mm: mean=0,059_Y/0,108_E µm* ±0,037_Y/0,066_E; Coma_2mm: mean=0,033_Y/0,043_E µm* ±0,014_Y/0,037_E; Coma_3mm: mean=0,032_Y/0,059_E µm* ±0,022_Y/0,049_E; Coma_4mm: mean=0,059_Y/0,099_E µm* ±0,036_Y/0,066_E; SA_2mm: mean=0,004_Y/0,005_E µm ±0,008_Y/0,021_E; SA_3mm: mean=0,012_Y/0,025_E µm* ±0,013_Y/0,031_E; SA_4mm: mean=0,028_Y/0,057_E µm* ±0,034_Y/0,049_E. An asterisk indicates a significant difference (p<.05) between the means

Conclusion

It could be confirmed that elderly eyes have statistically significant greater ocular higher order aberrations than younger. This finding was consistent for Coma, Spherical Aberrations and Trefoil regardless of the size of the optical zones analysed, except one case. This ongoing study provides an excellent basis in order to establish normative data for HOA. However, a much greater population, including patients of all age groups, must be examined so that a more meaningful clustering, e.g. 10 years steps, can be applied