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Long-term changes in ocular rigidity following scleral buckling for rhegmatogenous retinal detachment

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Abstract

Purpose

To investigate the long-term effect of scleral buckling on corneal biomechanics and the effect of change of scleral properties on intraocular pressure (IOP) measurements.

Methods

This is a prospective case series, patients with rhegmatogenous retinal detachment prepared for scleral buckling were included. Goldmann applanation tonometry was used to measure IOP (GAT IOP). Ocular Response Analyzer (ORA) was used to measure corneal hysteresis (CH), corneal resistance factor (CRF), goldmann-corrected IOP (IOPg), and corneal-compensated IOP (IOPcc) preoperatively, and 1, 3, and 6 months postoperatively.

Results

Thirty-three eyes included in the final analysis, with an average age 38.4 ± 16.2 years. CH and CRF decreased significantly at first, third, sixth months post-scleral buckling; however, this effect decreased with time as follows; preoperative: 8.9 ± 1.5 and 8.5 ± 2.1, first month: 6.8 ± 1.6 and 7.1 ± 1.8 (P value = 0.00, 0.002), third month: 7.8 ± 1.5 and 7.6 ± 1.6 (P value = 0.001, 0.008), and sixth month: 7.7 ± 1.3 and 7.6 ± 1.7 (P value = 0.002, 0.055). IOP cc was 19.3 ± 3.6, 17.1 ± 4, and 17.6 ± 2.9 at 1, 3, and 6 months, and these readings were significantly higher than GAT (13.6 ± 7.6, 12.4 ± 5.1, and 12.1 ± 2.9, P values = 0.00) and IOPg (14.9 ± 3.6, 13.5 ± 4.1, and 13.9 ± 3.5, P values = 0.00). The change in CH at each visit is correlated with the difference between the IOPcc and GAT measurements.

Conclusion

The conventional Goldmann applanation tonometry underestimates post buckle IOP measurements due corneal biomechanics changes. ORA might be an alternative and accurate method of measurement; however, further investigation is warranted.

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Data availability

The authors confirm that the data supporting the findings of this study are available within the article [and/or] its supplementary materials.

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Funding

This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors. The authors have no financial or proprietary interest in any product mentioned in this paper.

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Authors and Affiliations

  1. Department of Ophthalmology, Kasr El Aini Hospital, Cairo University, 29th, 1th street, Apt. 11 Maadi Cairo, El-Manial, Cairo, 1141, Egypt

    Abdussalam M. Abdullatif, Ahmed Saad Albalkini, Tamer A. Macky, Ayman Khattab & Mohamed Attya

  2. Research Institute of Ophthalmology (RIO), Giza, Egypt

    Mohamed Saad Albalkini

Authors
  1. Abdussalam M. Abdullatif
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  2. Ahmed Saad Albalkini
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  3. Mohamed Saad Albalkini
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  4. Tamer A. Macky
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  5. Ayman Khattab
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  6. Mohamed Attya
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Contributions

All authors contributed equally in this study idea, design, data collection, analysis, and drafting the manuscript.

Corresponding author

Correspondence to Tamer A. Macky.

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All authors certify that they have NO affiliations with or involvement in any organization or entity with any financial interest (such as honoraria, educational grants, participation in speakers’ bureaus, membership, employment, consultancies, stock ownership, or other equity interest, and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript. Authors do not have any competing interest with any material used in this study.

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Abdullatif, A.M., Albalkini, A.S., Albalkini, M.S. et al. Long-term changes in ocular rigidity following scleral buckling for rhegmatogenous retinal detachment. Int Ophthalmol 42, 1491–1498 (2022). https://doi.org/10.1007/s10792-021-02138-9

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  • DOI: https://doi.org/10.1007/s10792-021-02138-9

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