Disruption of the Posterior Chamber–Anterior Hyaloid Membrane Barrier During Phacoemulsification and Aspiration as Revealed by Contrast-Enhanced Magnetic Resonance Imaging

Kawasaki, Shiro; Suzuki, Takashi; Yamaguchi, Masahiko; Tasaka, Yoshitaka; Shiraishi, Atsushi; Uno, Toshihiko; Sadamoto, Masanori; Minami, Noriyoshi; Naganobu, Kiyokazu; Ohashi, Yuichi

doi:10.1001/archophthalmol.2008.594

Cited by 28 publications

(32 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Rupture of the posterior capsule can induce bacterial translocation from the anterior chamber to the vitreous. Some investigators have reported that cataract surgery without PCR does not allow substances in the aqueous humor to move into the vitreous humor because the posterior capsule [17][18][19] and anterior vitreous membrane 20 form a firm barrier. Thus, ocular penetration by postoperative antibiotics could differ between eyes with and without PCR.…”

Section: Discussionmentioning

confidence: 99%

Ocular Penetration and Efficacy of Levofloxacin Using Different Drug-Delivery Techniques for the Prevention of Endophthalmitis in Rabbit Eyes with Posterior Capsule Rupture

Uda

Suzuki

Mitani

et al. 2014

Journal of Ocular Pharmacology and Therapeutics

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Ocular Penetration and Efficacy of Levofloxacin Using Different Drug-Delivery Techniques for the Prevention of Endophthalmitis in Rabbit Eyes with Posterior Capsule Rupture

Uda

Suzuki

Mitani

et al. 2014

Journal of Ocular Pharmacology and Therapeutics

Self Cite

View full text Add to dashboard Cite

show abstract

“…We confirmed that the fluorescein beads could be trapped by the dense network of zonular fibers during standard PEA (Additional file 2, Normal), indicating that the zonular fibers may act as an important barrier for the invasion of bacteria from entering the vitreous cavity. Furthermore, our method also clearly documented the formation of a AHM tear [10], and the tear could be a risk factor leading to endophthalmitis following uneventful surgery (Additional file 2, AHT).…”

Section: Discussionmentioning

confidence: 99%

New side-view imaging technique for observing posterior chamber structures during cataract surgery in porcine eyes

et al. 2013

Self Cite

View full text Add to dashboard Cite

BackgroundTo develop a side-view imaging technique for observing the dynamic behavior of posterior chamber structures (PCSs) in porcine eyes which mimics closed-eye cataract surgery in humans.MethodsEnucleated porcine eyes were placed into liquid nitrogen for 5 seconds and immediately bisected at about a 45-degree angle to the equatorial plane. The anterior portion was attached firmly to a glass slide with superglue and sprinkled with wheat flour. Phacoemulsification and aspiration (PEA) was performed as in humans on 10 consecutive porcine eyes. The movements of the PCSs were monitored through the glass slide with a high-resolution video camera set below the cut surface of the eye. The intraocular pressure (IOP) was monitored during the surgery. The highest IOP, operation time, and volume of irrigation fluid of 10 whole eyes were compared to that obtained from the bisected eyes glued to a glass slide. In a second set of experiments, the strength of the seal between the bisected eye and the glass slide was tested in three sets of eyes: 1) frozen eye fixed with superglue with wheat flour for 3 min; 2) frozen eye fixed with superglue for 3 min; and 3) non-frozen eye fixed with superglue for 30 min. The highest IOP that led to a disruption of the seal was compared among the three groups.ResultsPEA was successfully performed on 9 of 10 (90%) eyes with the movements of the PCSs clearly observed. The average maximum intraocular pressure of the 9 bisected eyes was 55.8 ± 4.7 mmHg and that for the 10 unbisected eyes was 55.3 ± 5.0 mmHg (P = 0.650). The frozen eye fixed with superglue in combination with wheat flour (Group 1) had the strongest sealing strength with an average IOP at the breaking point of 117.3 ± 36.2 mmHg.ConclusionsOur side-view imaging technique can be used to evaluate the changes of the PCSs during intraocular surgery and for surgical training of new residents.

show abstract

“…Rarely, the rapid change in intraocular pressure (IOP) due to hydrodissection can induce a rupture in the posterior capsule 11,12 and cause fissures to develop in the posterior chamber-anterior hyaloid membrane barrier, 13 which is a risk factor for contamination of the vitreous cavity. In cases with suspected thickening of the posterior capsule, such as posterior polar cataracts, 14,15 it can be difficult to perform hydrodissection because there is a risk for posterior capsule rupture.…”

Section: Online Videomentioning

confidence: 99%

Phacoemulsification without hydrodissection: Semi-crater and split technique

Soda¹,

Yaguchi²

2015

Journal of Cataract and Refractive Surgery

View full text Add to dashboard Cite

show abstract

Disruption of the Posterior Chamber–Anterior Hyaloid Membrane Barrier During Phacoemulsification and Aspiration as Revealed by Contrast-Enhanced Magnetic Resonance Imaging

Cited by 28 publications

References 25 publications

Ocular Penetration and Efficacy of Levofloxacin Using Different Drug-Delivery Techniques for the Prevention of Endophthalmitis in Rabbit Eyes with Posterior Capsule Rupture

Ocular Penetration and Efficacy of Levofloxacin Using Different Drug-Delivery Techniques for the Prevention of Endophthalmitis in Rabbit Eyes with Posterior Capsule Rupture

New side-view imaging technique for observing posterior chamber structures during cataract surgery in porcine eyes

Phacoemulsification without hydrodissection: Semi-crater and split technique

Contact Info

Product

Resources

About