Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0033377 (prolapse)
 11,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Vitreous prolapse in cataract surgery or during the extraction of a dislocated lens; corneal dystrophy in aphacic eyes due to corneo-vitreous contact and vitreous invading the anterior chamber following perforating injury proved to be valid indications for partial transpupillary vitrectomy. In malignant glaucoma, in postoperative wound rupture following cataract extraction, in open-sky-surgery of the anterior segment of aphacic eyes and in other particular conditions, transpupillary vitrectomy may also be considered. The transpupillary approach is not indicated in retinal detachment, unless prepupillary vitreous incarceration pulling up of the retina is obvious. Transpupillary vitrectomy can be performed without much harm to the eye even in children, if indicated (congenital cataract, congenital on traumatic lens dislocation, perforating lens injury). In general the results of transpupillary vitrectomy are good. Longterm complications are relatively rare. Experiences on 208 eyes are reported in particular.
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PMID:[Results of transpupillar vitrectomy (author's transl)]. 91 5

Extraction only appears indicated in cases of anteriour luxation and phakolytic glaucoma. Visual disturbances due to a dislocated lens should be considered relative indications for removal, since functional improvement cannot be expected as a rule. Expression of the lens through a corneoscleral incision is the method of choice in cases of anterior luxation (Fig. 1) as well as in subluxations without vitreous prolapse (Fig. 2) Open-sky vitrectomy allows for clearing of the route of extraction in cases of subluxation with vitreous in the anterior chamber (Fig. 3). A pars plana approach may be chosen in cases with a soft nucleus (Fig. 4) whereas luxated lenses with a hard nucleus are first aspirated (soft capsule and cortex), then the hard nucleus is luxated into the anterior chamber and finally extracted through a small corneoscleral incision, thus avoiding prolonged perfusion of the anterior chamber necessary for stripper techniques.
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PMID:[Indications and techniques for removal of subluxated lenses (author's transl)]. 696 78