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Relationship between variations in posterior vitreous detachment and visual prognosis in idiopathic epiretinal membranes.

Ota A, Tanaka Y, Toyoda F, Shimmura M, Kinoshita N, Takano H, Kakehashi A - Clin Ophthalmol (2015)

Bottom Line: The logMAR BCVA at the first visit was the worst in the P-PVD without shrinkage (M) group (0.22±0.35) compared with the no-PVD group (-0.019±0.07; P<0.01) and the C-PVD group (0.029±0.08; P<0.05).The logMAR BCVA 2 years later was also worst in the P-PVD without shrinkage (M) group (0.39±0.35) compared with the no-PVD group (0.04±0.13) and the C-PVD with collapse group (0.03±0.09; P<0.05 for both comparisons).The change in the logMAR BCVA over the 2-year follow-up period was worst in the P-PVD without shrinkage (M) group (0.17±0.23) compared with the no-PVD group (0.06±0.14) and the C-PVD with collapse group (0.0009±0.09; P<0.05 for both comparisons).

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Jichi Medical University, Saitama Medical Center, Omiya-ku, Saitama, Japan.

ABSTRACT

Purpose: To clarify the relationship between variations in posterior vitreous detachments (PVDs) and visual prognoses in idiopathic epiretinal membranes (ERMs).

Methods: In this retrospective, observational, and consecutive case series, we observed variations in PVDs in 37 patients (mean age, 65.7±11.0 years) with ERMs and followed them for 2 years. Three PVD types were found biomicroscopically: no PVD, complete PVD with collapse (C-PVD with collapse), and partial PVD without shrinkage, with persistent vitreous attachment to the macula through the premacular hole of the posterior hyaloid membrane (P-PVD without shrinkage [M]). The best-corrected visual acuity (BCVA) was measured and converted to the logarithm of the minimum angle of resolution (logMAR) BCVA at the first visit and 2 years later.

Results: No PVD was observed in 16 of the 37 eyes (mean age, 61.3±11.3 years), C-PVD with collapse in 11 of the 37 eyes (mean age, 69.1±9.9 years), and P-PVD without shrinkage (M) in 10 of the 37 eyes (mean age, 69.3±10.9 years). The logMAR BCVA at the first visit was the worst in the P-PVD without shrinkage (M) group (0.22±0.35) compared with the no-PVD group (-0.019±0.07; P<0.01) and the C-PVD group (0.029±0.08; P<0.05). The logMAR BCVA 2 years later was also worst in the P-PVD without shrinkage (M) group (0.39±0.35) compared with the no-PVD group (0.04±0.13) and the C-PVD with collapse group (0.03±0.09; P<0.05 for both comparisons). The change in the logMAR BCVA over the 2-year follow-up period was worst in the P-PVD without shrinkage (M) group (0.17±0.23) compared with the no-PVD group (0.06±0.14) and the C-PVD with collapse group (0.0009±0.09; P<0.05 for both comparisons).

Conclusion: Cases with an ERM with a P-PVD without shrinkage (M) had a worse visual prognosis than those with an ERM with no PVD and C-PVD with collapse.

No MeSH data available.


Related in: MedlinePlus

Classification of posterior vitreous detachments (PVDs) by slit-lamp biomicroscopy.Abbreviations: No PVD, no posterior vitreous detachment; C-PVD without collapse, complete posterior vitreous detachment without collapse; C-PVD with collapse, complete posterior vitreous detachment with collapse; P-PVD with shrinkage, partial posterior vitreous detachment with shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage, partial posterior vitreous detachment without shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage (M), P-PVD without shrinkage showing vitreous gel attachment to the macula through the premacular hole in the posterior hyaloid membrane.
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f1-opth-10-007: Classification of posterior vitreous detachments (PVDs) by slit-lamp biomicroscopy.Abbreviations: No PVD, no posterior vitreous detachment; C-PVD without collapse, complete posterior vitreous detachment without collapse; C-PVD with collapse, complete posterior vitreous detachment with collapse; P-PVD with shrinkage, partial posterior vitreous detachment with shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage, partial posterior vitreous detachment without shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage (M), P-PVD without shrinkage showing vitreous gel attachment to the macula through the premacular hole in the posterior hyaloid membrane.

Mentions: We observed variations in PVDs by both biomicroscopy and OCT in the eyes of 37 patients (mean age, 65.7±11.0 years) with idiopathic ERMs and followed the patients for 2 years. The PVD variations were classified biomicroscopically according to the PVD classification of Kakehashi et al (Figure 1).14,15 The vitreous conditions initially were divided into no-PVD and PVD. The PVDs were then classified as complete PVDs (C-PVDs) and partial PVDs (P-PVDs). The C-PVDs were divided into C-PVDs with collapse and without collapse, and the P-PVDs into P-PVD with shrinkage of the posterior hyaloid membrane (P-PVDs with shrinkage) and without shrinkage of the posterior hyaloid membrane (P-PVDs without shrinkage). The P-PVDs without shrinkage have a subtype with vitreous gel attachment through the premacular hole in the posterior hyaloid membrane to the macula (P-PVDs without shrinkage [M]). Biomicroscopy results showed that ERM cases with P-PVDs without shrinkage (M) had a persistent vitreous attachment to the macula through the premacular hole of the posterior hyaloid membrane (Video S1) but no apparent vitreous traction on OCT images (Figure 2).


Relationship between variations in posterior vitreous detachment and visual prognosis in idiopathic epiretinal membranes.

Ota A, Tanaka Y, Toyoda F, Shimmura M, Kinoshita N, Takano H, Kakehashi A - Clin Ophthalmol (2015)

Classification of posterior vitreous detachments (PVDs) by slit-lamp biomicroscopy.Abbreviations: No PVD, no posterior vitreous detachment; C-PVD without collapse, complete posterior vitreous detachment without collapse; C-PVD with collapse, complete posterior vitreous detachment with collapse; P-PVD with shrinkage, partial posterior vitreous detachment with shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage, partial posterior vitreous detachment without shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage (M), P-PVD without shrinkage showing vitreous gel attachment to the macula through the premacular hole in the posterior hyaloid membrane.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4697789&req=5

f1-opth-10-007: Classification of posterior vitreous detachments (PVDs) by slit-lamp biomicroscopy.Abbreviations: No PVD, no posterior vitreous detachment; C-PVD without collapse, complete posterior vitreous detachment without collapse; C-PVD with collapse, complete posterior vitreous detachment with collapse; P-PVD with shrinkage, partial posterior vitreous detachment with shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage, partial posterior vitreous detachment without shrinkage of the posterior hyaloid membrane; P-PVD without shrinkage (M), P-PVD without shrinkage showing vitreous gel attachment to the macula through the premacular hole in the posterior hyaloid membrane.
Mentions: We observed variations in PVDs by both biomicroscopy and OCT in the eyes of 37 patients (mean age, 65.7±11.0 years) with idiopathic ERMs and followed the patients for 2 years. The PVD variations were classified biomicroscopically according to the PVD classification of Kakehashi et al (Figure 1).14,15 The vitreous conditions initially were divided into no-PVD and PVD. The PVDs were then classified as complete PVDs (C-PVDs) and partial PVDs (P-PVDs). The C-PVDs were divided into C-PVDs with collapse and without collapse, and the P-PVDs into P-PVD with shrinkage of the posterior hyaloid membrane (P-PVDs with shrinkage) and without shrinkage of the posterior hyaloid membrane (P-PVDs without shrinkage). The P-PVDs without shrinkage have a subtype with vitreous gel attachment through the premacular hole in the posterior hyaloid membrane to the macula (P-PVDs without shrinkage [M]). Biomicroscopy results showed that ERM cases with P-PVDs without shrinkage (M) had a persistent vitreous attachment to the macula through the premacular hole of the posterior hyaloid membrane (Video S1) but no apparent vitreous traction on OCT images (Figure 2).

Bottom Line: The logMAR BCVA at the first visit was the worst in the P-PVD without shrinkage (M) group (0.22±0.35) compared with the no-PVD group (-0.019±0.07; P<0.01) and the C-PVD group (0.029±0.08; P<0.05).The logMAR BCVA 2 years later was also worst in the P-PVD without shrinkage (M) group (0.39±0.35) compared with the no-PVD group (0.04±0.13) and the C-PVD with collapse group (0.03±0.09; P<0.05 for both comparisons).The change in the logMAR BCVA over the 2-year follow-up period was worst in the P-PVD without shrinkage (M) group (0.17±0.23) compared with the no-PVD group (0.06±0.14) and the C-PVD with collapse group (0.0009±0.09; P<0.05 for both comparisons).

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Jichi Medical University, Saitama Medical Center, Omiya-ku, Saitama, Japan.

ABSTRACT

Purpose: To clarify the relationship between variations in posterior vitreous detachments (PVDs) and visual prognoses in idiopathic epiretinal membranes (ERMs).

Methods: In this retrospective, observational, and consecutive case series, we observed variations in PVDs in 37 patients (mean age, 65.7±11.0 years) with ERMs and followed them for 2 years. Three PVD types were found biomicroscopically: no PVD, complete PVD with collapse (C-PVD with collapse), and partial PVD without shrinkage, with persistent vitreous attachment to the macula through the premacular hole of the posterior hyaloid membrane (P-PVD without shrinkage [M]). The best-corrected visual acuity (BCVA) was measured and converted to the logarithm of the minimum angle of resolution (logMAR) BCVA at the first visit and 2 years later.

Results: No PVD was observed in 16 of the 37 eyes (mean age, 61.3±11.3 years), C-PVD with collapse in 11 of the 37 eyes (mean age, 69.1±9.9 years), and P-PVD without shrinkage (M) in 10 of the 37 eyes (mean age, 69.3±10.9 years). The logMAR BCVA at the first visit was the worst in the P-PVD without shrinkage (M) group (0.22±0.35) compared with the no-PVD group (-0.019±0.07; P<0.01) and the C-PVD group (0.029±0.08; P<0.05). The logMAR BCVA 2 years later was also worst in the P-PVD without shrinkage (M) group (0.39±0.35) compared with the no-PVD group (0.04±0.13) and the C-PVD with collapse group (0.03±0.09; P<0.05 for both comparisons). The change in the logMAR BCVA over the 2-year follow-up period was worst in the P-PVD without shrinkage (M) group (0.17±0.23) compared with the no-PVD group (0.06±0.14) and the C-PVD with collapse group (0.0009±0.09; P<0.05 for both comparisons).

Conclusion: Cases with an ERM with a P-PVD without shrinkage (M) had a worse visual prognosis than those with an ERM with no PVD and C-PVD with collapse.

No MeSH data available.


Related in: MedlinePlus