Post-repair rhegmatogenous retinal detachment results in significant changes to macular perfusion and BCVARetinal Detachment Repair Linked to Changes in Blood Flow

International ophthalmology Published August 20, 2026 Study authors: Ahmed Abdullah, Shaheen Fiza, Abu Serhan Hashem, Nadeem Zain Ali, Chaudhry Mahrukh, Ahmad Eeman, Kha… PubMed ↗ DOI ↗ Editorial oversight: Dr. Lars van Dijk, PhD · Surgical, Procedural & Diagnostic

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Key Takeaway

Note that post-repair RRD involves significant changes to macular perfusion and improved BCVA specifically in macula-OFF cases.

This meta-analysis evaluated 686 eyes with rhegmatogenous retinal detachment (RRD) to assess macular perfusion parameters and best-corrected visual acuity (BCVA) following repair. The study compared post-repair RRD eyes against control eyes, categorizing patients into macula-ON and macula-OFF groups.

Key findings include a significant increase in FAZ area in macula-OFF cases, with SCP increasing by 0.06 mm (95% CI: 0.02-0.09) and DCP by 0.12 mm (95% CI: 0.04-0.19). Additionally, PFVD in the DCP showed a significant reduction post-repair in both groups (-1.38% for macula-ON; -2.83% for macula-OFF). CC perfusion density also significantly decreased by 2.39% (95% CI: -4.56 to -0.22) post-repair.

Regarding visual outcomes, BCVA in macula-OFF cases improved by 0.79 logMAR (95% CI: 0.37-1.21), while no significant change was observed in the macula-ON group. The authors note that these findings highlight the necessity of comprehensive assessment beyond isolated perfusion metrics when evaluating surgical success. No specific limitations or adverse events were reported.

How this fits prior evidence

This meta-analysis addresses a gap in understanding post-surgical outcomes for rhegmatogenous retinal detachment (RRD) by quantifying specific macular perfusion changes. While prior evidence has focused on prophylaxis to reduce RRD odds in Stickler syndrome and the role of oral retinoic acid in proliferative vitreoretinopathy, this study provides specific data on vascular metrics like FAZ area and CC perfusion density following successful surgical repair.

Researchers conducted a meta-analysis to look at how blood flow in the eye changes after surgery for rhegmatogenous retinal detachment. The study looked at 686 eyes, comparing those where the macula was still attached (macula-ON) to those where it was not (macula-OFF).

The findings showed that patients with macula-OFF cases saw a significant improvement in their best-corrected visual acuity after surgery. However, these same patients also showed an increase in certain blood flow areas and a decrease in others. Patients with macula-ON eyes did not show a significant change in vision scores after the procedure.

Because this was a meta-analysis of existing data, it shows a link between the surgery and changes in eye perfusion rather than proving a direct cause. The results suggest that doctors should look at many different factors beyond just blood flow when measuring how successful a surgery was. Patients should talk to their eye specialists about what these specific measurements mean for their individual recovery.

What this means for you:

Surgery for retinal detachment is linked to changes in blood flow and vision improvements in some cases.

Common questions

How does surgery affect vision after a retinal detachment?

In cases where the macula was not involved (macula-OFF), patients showed a significant improvement in their best-corrected visual acuity. However, for those with macula-ON cases, no significant change in vision was reported following the repair.

What changes were found in blood flow after surgery?

The study found that patients with macula-OFF cases had a significantly enlarged area in certain blood vessels. Additionally, there was a significant reduction in capillary perfusion density and some other specific blood flow markers following the repair.

Is this finding enough to predict my recovery?

This study shows an association between surgery and changes in eye blood flow, but it does not prove that one caused the other. Because results vary based on specific conditions like macula status, you should consult your doctor to discuss your specific case.

Study Details

Study typeMeta analysis

EvidenceLevel 1

PublishedAug 2026

PMID42622880

View Original Abstract ↓

BACKGROUND: Evaluating rhegmatogenous retinal detachment (RRD) repair traditionally focuses on anatomical reattachment and visual acuity. Understanding macular perfusion changes post-repair offers a more comprehensive assessment. Optical coherence tomography angiography (OCTA) non-invasively visualizes retinal microvasculature, enabling detailed perfusion analysis. METHODS: Our protocol was registered (PROSPERO CRD42024533072). We searched PubMed, Scopus, ScienceDirect, and Cochrane databases (from inception to November 2024) for studies comparing OCTA parameters between post-repair RRD eyes and controls. Analyzed parameters included foveal avascular zone (FAZ) area, foveal (FVD) and parafoveal vascular density (PFVD), choriocapillaris (CC) perfusion, and best-corrected visual acuity (BCVA). Data were analyzed for macula-ON and macula-OFF groups using a random-effects model. RESULTS: Twenty studies comprising 686 RRD eyes (231 macula-ON, 455 macula-OFF) and 686 control eyes were analyzed. In macula-OFF cases, FAZ area remained significantly enlarged post-repair in both superficial capillary plexus (SCP) (0.06 mm, 95% CI: 0.02-0.09) and deep capillary plexus (DCP) (0.12 mm, 95% CI: 0.04-0.19). FVD showed no significant differences in either group. PFVD demonstrated a significant reduction in DCP for both macula-ON (- 1.38%, 95% CI: - 2.72 to - 0.05) and macula-OFF (- 2.83%, 95% CI: - 5.04 to - 0.63) groups. CC perfusion density showed a significant reduction post-repair (- 2.39%, 95% CI: - 4.56 to - 0.22). Postoperative BCVA improved significantly in macula-OFF cases (0.79 logMAR, 95% CI: 0.37-1.21) but showed no significant change in macula-ON cases. CONCLUSIONS: Despite successful anatomical repair of RRD, persistent alterations in macular perfusion parameters were observed, particularly in the macula-OFF group. The enlarged FAZ area and reduced PFVD and CC perfusion density suggest lasting changes in the retinal microvasculature post-repair. However, significant improvement in BCVA, especially in macula-OFF cases, indicates that functional recovery may occur despite these vascular changes. These findings highlight the need for comprehensive assessment beyond isolated perfusion metrics when evaluating surgical success in RRD repair.

Post-repair rhegmatogenous retinal detachment results in significant changes to macular perfusion and BCVARetinal Detachment Repair Linked to Changes in Blood Flow

How this fits prior evidence

Common questions

Study Details

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Post-repair rhegmatogenous retinal detachment results in significant changes to macular perfusion and BCVARetinal Detachment Repair Linked to Changes in Blood Flow

How this fits prior evidence

Common questions

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