ArticleJapanese journal of ophthalmology2020
Measurement of the volume of the vitrectomized space during vitrectomy in myopic patients with retinal detachment.
Article in Japanese journal of ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 9 citations in OpenAlex.
- Risk factors for re-detachment after 25-gauge pars plana primary vitrectomy for rhegmatogenous retinal detachment: a retrospective observational single-center study.Japanese journal of ophthalmology · 2026Observational
- Dose adjustment of intravitreal medications and gases according to axial length and vitreous cavity volume.Arquivos brasileiros de oftalmologia · 2025Article
- Effect of Estimated Individual Vitreous Volume on Intraocular Pressure Spikes after Intravitreal Anti-Vascular Endothelial Growth Factors Injection.Ophthalmic research · 2025Article
- Estimating the volume of the vitrectomized space using axial length: a guideline.Arquivos brasileiros de oftalmologia · 2025Observational
- Letter to the Editor Regarding "VIVEX: A Formula for Calculating Individual Vitreous Volume: A New Approach Towards Tailored Patient Dosing Regime in Intravitreal Therapy".Ophthalmology and therapy · 2024Article
- VIVEX: A Formula for Calculating Individual Vitreous Volume: A New Approach Towards Tailored Patient Dosing Regime in Intravitreal Therapy.Ophthalmology and therapy · 2024Article
- Comparison of ocular morphological measurement by wide-angle echography and magnetic resonance imaging.Fujita medical journal · 2023Article
- Risk factors for epiretinal membrane surgery after initial pars plana vitrectomy for rhegmatogenous retinal detachment.Fujita medical journal · 2022Article
- Use of axial length to estimate the vitreous chamber volume in pseudophakic.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeWe present a novel technique for measuring volume of space replaced by air during fluid-air exchange in vitrectomy (vitrectomized space) for intravitreal gas injection. To confirm the feasibility of this technique, we assessed postoperative intraocular pressure (IOP) and the duration of injected gas. Using this technique, we found remarkable differences in volume between high myopic eyes with retinal detachment caused by peripheral break (PB-RD group) and those with macular hole retinal detachment (MH-RD group). We studied the relationships between the volume and biometric values, axial length (AL) and corneal curvature radius (CCR) in both PB-RD and MH-RD group. STUDY
designRetrospective study.
methodsDuring fluid-air exchange, the aspirated fluid accumulates in the measuring cup between the infusion needle and vitrectomy instrument. Vitrectomized space volume is obtained by subtracting the volume of the tube between the infusion needle and the 3-way stopcock from the aspirated fluid volume. We performed phaco-vitrectomies by measuring the vitrectomized space volume and then injected pure SF6 at 15% of the volume into the vitreous cavity in 156 myopic eyes (AL > 26 mm) with RD consisting of 144 eyes in PB-RD group and 12 in MH-group.
resultsThe IOP (mean ± SD) was 13.5 ± 3.4 mmHg preoperatively, 23.4 ± 10.4 mmHg on day 1, 18.2 ± 7.4 mmHg on day 2, and 16.1 ± 4.5 on day 7. The gas disappeared in 16.1 ± 1.9 days. Axial length was longer in the MH-RD group but the volume of vitrectomized space was larger in the PB-RD group. AL and volume were significantly correlated in both groups (P < 0.01), but the fitting lines differed. The CCR and volume significantly correlated in the PB-RD group (P < 0.01) but not in the MH-RD group.
conclusionOur novel technique for measuring the volume of vitrectomized space can achieve target gas concentration in the vitreous cavity. The difference in the shape of eyeballs may explain discrepancies in relationship between volume and the biometric factors.
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