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Iris Prolapse

Prolapse of Iris


Presentation

  • We present 2 strategies for managing IFIS-associated iris prolapse. Placement of a single subincisional iris retractor following reposition of the prolapsed iris was the more successful approach.[ncbi.nlm.nih.gov]
  • […] entry for "prolapse" is presented.[connection.ebscohost.com]
  • Abstract A theoretical explanation of the mechanism of iris prolapse is presented using simple flow mechanics and the Bernouille principle, which states that fluid pressure varies inversely to fluid velocity.[ncbi.nlm.nih.gov]
  • Two cases of iris prolapse that presented 8 and 10 months, respectively, after surgery for glaucoma were reviewed. One of the cases was associated with mild trauma. The postoperative follow-up was 5 and 24 months, respectively.[ncbi.nlm.nih.gov]
  • It is a relatively uncommon complication of present day cataract surgery, and it is postulated that iris prolapse results from transient pupillary block, in the post-operative period.[ncbi.nlm.nih.gov]
Collapse
  • The puppy's eye was surprisingly quiet, but the prolapse was very fragile and was likely to start leaking causing collapse of the eye.[eastcottreferrals.co.uk]
  • […] pupil is a cardinal sign of a ruptured globe with the peak corresponding to the area where the iris has moved from the area of high pressure (intraocular) to low pressure (the environment outside the eye) to seal the perforation and prevent further collapse[healio.com]
  • In that situation, I sculpt as much as I can and make an enormous bowl that will then collapse upon itself. I can then use viscoelastic to viscodissect it from the posterior capsule.[reviewofophthalmology.com]
Aspiration
  • Here you can see a case of prolapse during irrigation aspiration. The first move is to decompress the anterior chamber from the paracentesis. 8.[eyesteve.com]
  • If iris prolapse occurs, the surgeon then aspirates fluid from the anterior chamber via a second incision site, in order to reduce the IOP.[medical-dictionary.thefreedictionary.com]
  • Key Words: Wound dehiscence, iris prolapse , phacoemulsification Incisions that are too large allow flattening of the anterior chamber during irrigation, aspiration, and the phacoemulsification process and this in turn increases the probability of iris[freethesaurus.com]
  • This can be done by lowering the intraocular pressure or bottle height and decreasing the aspiration flow rate/vacuum, which helps minimize large fluctuations in anterior chamber pressure and decreases the risk of repeat prolapse.[webeye.ophth.uiowa.edu]
  • Iris prolapse into the phaco tunnel and iris catching into the irrigation-aspiration tip during irrigation–aspiration and poor dilatation of the iris in a patient using tamsulosin. F igure 1.[iovs.arvojournals.org]
Vascular Disease
  • Many disease states can affect the iris and its ability to maintain muscular tone and adaptability, such as diabetes, hypertension, vascular diseases, anterior uveitis/iritis, syphilis, neurological disease, trauma and other factors such as certain systemic[ophthalmologymanagement.com]
Flushing
  • To excise, the prolapsed iris is cut flush with the corneal surface. The iris defect may be closed using a 10-0 polypropylene suture on a vascular needle.[emedicine.medscape.com]
  • Otherwise, it should be cut flush with the corneal surface.[crstoday.com]
  • “Take the phaco needle out of the eye and flush the tip, handpiece and tubing. Most of time I find the culprit is a piece of dense nucleus stuck in the tubing. ” Dr.[reviewofophthalmology.com]
Withdrawn
  • ., in an eye with intraoperative floppy iris syndrome), if the I/A tip is withdrawn rapidly, the elevated IOP from the irrigation will result in a large pressure gradient with rapid fluid (and iris) egress.[eyeworld.org]
  • Because the IOP is elevated during I/A, fluid (and possibly the iris) will briefly but rapidly come out of the eye when the tip is withdrawn.[crstoday.com]
Stroke
  • Stroke the main wound Use a hydrodissection cannula to gently stroke the cornea overlying the main wound.[webeye.ophth.uiowa.edu]
  • Gently stroke the main wound Tip #8 is to gently stroke the main wound with a cannula, which helps the iris be released back into the eye. 9.[eyesteve.com]
  • Acetylcholine is instilled through a paracentesis incision into the anterior chamber with gentle stroking of the iris. Acetylcholine constricts the pupil and may release the iris incarceration.[emedicine.medscape.com]
  • Acta Medica Iranica 56 (9), 591-597 , 2018 2018 PRE-STROKE CIGARETTE SMOKING ARE ASSOCIATED WITH STROKE SEVERITY AND POST-STROKE DISABILITY MS Andalibi, MR Azarpazhooh, MT Farzadfard, N Morovatdar, N Mokhber, ...[scholar.google.com]

Treatment

  • Here, we report a case of iris prolapse caused by blunt ocular trauma after NPT with sinusotomy and mitomycin C treatment.[ncbi.nlm.nih.gov]
  • To describe the visual rehabilitation after surgical treatment of an ocular injury sustained during an attack by a bird of prey.[ncbi.nlm.nih.gov]
  • When the iris prolapses out of the incision towards the end of the case, the best treatment is to lower the pressure behind the iris.[healio.com]
  • Kaiser, Peter // Ophthalmology Times;5/1/96, Vol. 21 Issue 15, p1 Reports on the use of pressure patch in the treatment of corneal abrasion.[connection.ebscohost.com]
  • Ophthalmic Surgery, Lasers & Imaging 34(2): 132-135, 2003 Comparison outcomes of three surgical procedures in treatment of severe pelvic organ prolapse and analysis of risk factors for genital prolapse recurrence .[eurekamag.com]

Prognosis

  • Visual acuity should be considered the 6th vital sign for eye patients as prognosis in all of the vision threatening emergencies depends on the presenting visual acuity. Inspection.[emergencymedicinecases.com]

Etiology

  • The role of pelvic organs prolapse in the etiology of urinary incontinence in women.[advbiores.net]
  • Keywords: Etiology, incontinence, pelvic organ prolapse How to cite this article: Zargham M, Alizadeh F, Moayednia A, Haghdani S, Nouri-Mahdavi K. The role of pelvic organs prolapse in the etiology of urinary incontinence in women.[advbiores.net]
  • 0.5–2% of all cataract surgeries ( 1 ) Incidence of 60% among patients who are taking or who ever took tamsulosin ( 1 ) Occurs intraoperatively in 43–87% of patients who have ever taken tamsulosin Prevalence 9 times more prevalent among males ( 2 ) Etiology[unboundmedicine.com]
  • The importance of defecography in the assessment of the etiology of chronic constipation: an analysis of 630 patients. Ulus Cerrahi Derg 2014;30:183–185. 35. Sokol AI, Walters MD. Vaginal enterocele repair.[synapse.koreamed.org]
  • Biomechanical tissue quality, pelvic floor muscle deficits, and defects in pelvic floor connective tissues are etiologies for pelvic organ prolapse.[jpma.org.pk]

Epidemiology

  • Epidemiology Frequency United States The exact incidence of iris prolapse in the United States is unknown, but the overall estimated rate of all eye injuries ranges from 8.2-13 per 1000 population.[emedicine.medscape.com]
  • Epidemiology of surgically managed pelvic organ prolapse and urinary incontinence. Obstetrics & Gynecology. 1997;89(4):501-6. Clark AL, Gregory T, Smith VJ, Edwards R.[journals.aiac.org.au]
  • Neuroepidemiology 49 (3-4), 160-164 , 2017 2 2017 The Epidemiological and Clinical Study of Phenylketonuria (PKU) Patients in Khorasan, North-eastern Iran N Morovatdar, SB Aval, SMRH Yazdi, F Norouzi, T Mina Iranian Journal of Neonatology 6 (1), 19 ,[scholar.google.com]
  • Epidemiology of Pre-Eclampsia. Iran University of Medical Sciences 1995.[medschool.ucr.edu]
Sex distribution
Age distribution

Pathophysiology

  • Intraoperative floppy iris syndrome is characterized by poor preoperative pupil dilation and intraoperative iris billowing, iris prolapse, and progressive pupillary miosis. [1] Pathophysiology Iris prolapse can occur when the cornea is perforated due[emedicine.medscape.com]
  • It can help us to better understand pathophysiology of this common disease. Materials and Methods: In this descriptive study we enrolled 200 patients with isolated MVP.[jctm.mums.ac.ir]
  • […] all cataract surgeries ( 1 ) Incidence of 60% among patients who are taking or who ever took tamsulosin ( 1 ) Occurs intraoperatively in 43–87% of patients who have ever taken tamsulosin Prevalence 9 times more prevalent among males ( 2 ) Etiology and Pathophysiology[unboundmedicine.com]
  • Pathophysiology and role of biofeedback therapy in solitary rectal ulcer syndrome. Am J Gastroenterol. 2006; 101 (3): 613-8[ DOI ][ PubMed ] 65. Daniel F, Siproudhis L, Tohme C, Sayegh R.[colorectalresearch.com]

Prevention

  • Anterior wound placement, clear of the iris plane, should help to prevent iris prolapse. Minimizing the irrigation velocity (and hence the fluid outflow velocity) should also help to prevent intraoperative prolapse.[ncbi.nlm.nih.gov]
  • Strategies for prevention and management include the use of pharmacological agents, ophthalmic viscosurgical devices, and iris retractors. These strategies can be augmented by alteration and adaptation of the surgeon's technique.[ncbi.nlm.nih.gov]
  • Non-penetrating trabeculectomy (NPT) is effective in preventing numerous postoperative complications encountered with trabeculectomy. Recently, NPT has been modified to further reduce intraocular pressure (IOP) by combining other techniques.[ncbi.nlm.nih.gov]
  • Only a high index of suspicion and the proper bacterial cultures can prevent a possible tragic misdiagnosis.[ncbi.nlm.nih.gov]
  • I like to remove viscoelastic above the lens before hydrodissection to help prevent this complication.[crstoday.com]

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