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Abstract
Poster
Purpose: A study to validate a prototype Hartmann-Shack (HS) wavefront aberrometer.
Methods: The dynamic range was assessed using a calibrated model eye. It was validated against a conventional HS-aberrometer (Topcon KR1W) in 75 eyes using both instruments in random order. Additionally, intra-sessional repeatability was tested.
Results: The aberrometer showed a large dynamic range of +21.0 D to −25.0 D. It was comparable to a conventional HS aberrometer for spherical-equivalent SE (MD ± 95% CI: 0.02 ± 0.49D; correlation: r = 0.995, p < 0.001), astigmatic components (J0: 0.02 ± 0.15D; r = 0.977, p < 0.001; J45: 0.03 ± 0.28; r = 0.666, p < 0.001) and HOAs RMS (0.02 ± 0.20D; r = 0.620, p < 0.001). Intra-sessional repeatability correlation was also excellent (SE = 1.000, p < 0.001; astigmatic-components J0 = 0.998, p < 0.001, J45 = 0.980, p < 0.01; HOAs RMS = 0.961, p < 0.001).
Conclusions: This study confirms the validity of the prototype aberrometer. The prototype aberrometer can measure continuously to provide direct feedback of the optical status of the eye during surgery.
Purpose: A study to validate a prototype Hartmann-Shack (HS) wavefront aberrometer.
Methods: The dynamic range was assessed using a calibrated model eye. It was validated against a conventional HS-aberrometer (Topcon KR1W) in 75 eyes using both instruments in random order. Additionally, intra-sessional repeatability was tested.
Results: The aberrometer showed a large dynamic range of +21.0 D to −25.0 D. It was comparable to a conventional HS aberrometer for spherical-equivalent SE (MD ± 95% CI: 0.02 ± 0.49D; correlation: r = 0.995, p < 0.001), astigmatic components (J0: 0.02 ± 0.15D; r = 0.977, p < 0.001; J45: 0.03 ± 0.28; r = 0.666, p < 0.001) and HOAs RMS (0.02 ± 0.20D; r = 0.620, p < 0.001). Intra-sessional repeatability correlation was also excellent (SE = 1.000, p < 0.001; astigmatic-components J0 = 0.998, p < 0.001, J45 = 0.980, p < 0.01; HOAs RMS = 0.961, p < 0.001).
Conclusions: This study confirms the validity of the prototype aberrometer. The prototype aberrometer can measure continuously to provide direct feedback of the optical status of the eye during surgery.
| Original language | English |
|---|---|
| Article number | 84 |
| Pages (from-to) | 109 |
| Number of pages | 1 |
| Journal | Clinical and Experimental Ophthalmology |
| Volume | 42 |
| Issue number | S1 |
| Early online date | 30 Oct 2014 |
| Publication status | Published - 30 Nov 2014 |
| Event | RANZCO 46th annual scientific congress - Brisbane, Australia Duration: 22 Nov 2014 → 26 Nov 2014 |
Bibliographical note
Special Issue: The Royal Australian and New Zealand College of Ophthalmologists, 46th Annual Scientific Congress, 22–26 November 2014.Fingerprint
Dive into the research topics of 'Validity of a prototype surgical aberrometer'. Together they form a unique fingerprint.Research output
- 2 Conference abstract
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Intraoperative prediction of refractive error using a prototype surgical aberrometer
Bhatt, U. K., Shah, S., Dua, H. & Wolffsohn, J., 30 Nov 2014, In: Clinical and Experimental Ophthalmology. 42, S1, p. 32 1 p., 1406.Research output: Contribution to journal › Conference abstract › peer-review
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Visual and quality outcomes following bilateral implantation of a trifocal intraocular lens
Bhatt, U., Wolffsohn, J., Sheppard, A. & Shah, S., 30 Nov 2014, In: Clinical and Experimental Ophthalmology. 42, S1, p. 74 1 p., 2.Research output: Contribution to journal › Conference abstract › peer-review