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<p>Biometry examination before cataract surgery is crucial to determine intraocular lens (IOL) power. It is mainly influenced by the measurement of eyeball axial length (AXL) and anterior chamber depth (ACD). The hypotony condition shortens these two parameters. The study was conducted to find an appropriate formula that can be used to correct the measurement of AXL and ACD in hypotony conditions. This was a prospective pre-post-experimental study in goat eye. The study population was adult goat eyes that met the inclusion, exclusion, and dropout criteria according to the sample size calculation. The data characteristics of IOP, AXL, and ACD in ultrasound biometry measurements of immersion techniques and Dino-Lite<sup>®</sup> in both eyes were normally distributed (<i>p</i> &gt; 0.05). There was a linear relationship between IOP with AXL (<i>p</i> = 0.003) and ACD (<i>p</i> = 0.002) in ultrasound biometry and also in Dino-Lite<sup>®</sup> AXL (<i>p</i> = 0.001) and ACD (<i>p</i> = 0.008). A linear regression formula was found to predict AXL and ACD size correction in goat eyes. The formula obtained in this study can predict the actual size of the adult goat eyeball. Adjustments were made to the data so that the results can mimic the average AXL and ACD of human eyes.</p>

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Prediction of ocular length in hypotony condition: a measurement study using immersion ultrasound biometry and Dino-Lite® microscope in goat eyes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月21日

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  • Umar Mardianto,
  • Andi Arus Victor,
  • Prasandhya Astagiri Yusuf,
  • Vetnizah Juniantito,
  • Aria Kekalih,
  • Tri Rahayu,
  • Alhadi Bustamam,
  • Lukman Edwar,
  • Dewi Liputadika

摘要

Biometry examination before cataract surgery is crucial to determine intraocular lens (IOL) power. It is mainly influenced by the measurement of eyeball axial length (AXL) and anterior chamber depth (ACD). The hypotony condition shortens these two parameters. The study was conducted to find an appropriate formula that can be used to correct the measurement of AXL and ACD in hypotony conditions. This was a prospective pre-post-experimental study in goat eye. The study population was adult goat eyes that met the inclusion, exclusion, and dropout criteria according to the sample size calculation. The data characteristics of IOP, AXL, and ACD in ultrasound biometry measurements of immersion techniques and Dino-Lite® in both eyes were normally distributed (p > 0.05). There was a linear relationship between IOP with AXL (p = 0.003) and ACD (p = 0.002) in ultrasound biometry and also in Dino-Lite® AXL (p = 0.001) and ACD (p = 0.008). A linear regression formula was found to predict AXL and ACD size correction in goat eyes. The formula obtained in this study can predict the actual size of the adult goat eyeball. Adjustments were made to the data so that the results can mimic the average AXL and ACD of human eyes.