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Ocular pulse amplitude measurement after retinal detachment surgery
John M Katsimpris1, Ioannis K Petropoulos, Constantin J Pournaras
1Department of Ophthalmology, General Hospital of Patras Agios Andreas, Patras, Greece. jkatsimpris@yahoo.com
Klinische Monatsblatter Fur Augenheilkunde
|March 29, 2003
Summary
Scleral buckling surgery for retinal detachment significantly reduces ocular pulse amplitude (OPA). This indicates altered ocular circulation after the procedure, impacting blood flow dynamics.
Area of Science:
- Ophthalmology
- Ocular Surgery
- Retinal Detachment Treatment
Background:
- Retinal detachment (RD) is a serious ocular condition requiring surgical intervention.
- Scleral buckling is a conventional surgical technique for RD repair.
- The impact of scleral buckling on ocular hemodynamics, specifically ocular pulse amplitude (OPA), requires further investigation.
Purpose of the Study:
- To evaluate the effect of scleral buckling surgery on ocular pulse amplitude (OPA).
- To assess changes in ocular circulation following conventional scleral buckling for rhegmatogenous RD.
Main Methods:
- 48 patients with unilateral rhegmatogenous RD underwent scleral buckling without vitrectomy.
- OPA was measured using dynamic observing tonometry (SmartLens) preoperatively and postoperatively.
- Exclusion criteria included other ocular diseases and systemic vascular conditions.
Main Results:
- Mean preoperative OPA was 2.34 +/- 0.25 mm Hg.
- Postoperative OPA significantly decreased in patients undergoing 2 quadrants (1.44 +/- 0.26 mm Hg) and >=3 quadrants (0.68 +/- 0.07 mm Hg) of scleral buckling.
- Significant differences were noted between pre- and postoperative OPA in these groups, and compared to fellow eyes.
Conclusions:
- Conventional scleral buckling surgery for RD causes significant alterations in ocular circulation.
- The reduction in OPA following scleral buckling serves as a clinical indicator of these circulatory changes.