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Query: UMLS:C0086543 (cataract)
 29,165 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The term "pre-equatorial syndrome" covers post-traumatic involvement of the anterior segment and of the pre-equatorial retina, due to a frontal distension mechanism. In a retrospective study, we studied 582 cases of ocular contusions from 1973 to 1986 in patients who required a brief hospitalisation in our clinic because of the severity of the initial injury. The aim of the study was to assess the occurrence of this syndrome, its clinical features and evolution. 59 complete pre-equatorial syndromes were found in this sample (10.2% of all the ocular contusions). The follow up ranged from one to 168 months. Games and sports injuries in children and work injuries in young men were most commonly found causes (2/3 of the cases). Hyphema and angle recession were the most frequently observed lesions (69%). All hyphemas disappeared spontaneously without surgical drainage. Subluxation of the lens was present in 10.6% and late post traumatic cataract occurred in four cases; all eyes were operated on by intracapsular extraction, three of them in the first year following the traumatism and the last twelve years latter. Intraocular pressure was high in 15.3% (but was easily controlled) and was very low in 5.1%. Retinal edema and haemorrhages were the most common involvement of the peripheral retina. Retinal dialysis was noticed in 13.6% especially in the upper nasal area: buckling surgery was performed in these cases with good results. Anterior and peripheral retinal damages was situated on the same meridian in 80% of the cases, five eyes showed a 180 degrees opposite setting while there was no obvious alignment in 15 of the cases. This syndrome did not impair final visual function alone, whereas severe associated ocular contusions of the posterior pole gave a very low visual outcome in 16 cases. This retrospective review emphasizes the main characteristics of this syndrome. Accurate examination of the irido-corneal angle and peripheral retina is of paramount importance in every ocular contusion.
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PMID:[Pre-equatorial contusion syndrome. Analysis apropos of 59 cases]. 269 61

A transient corneal edema is often seen after the injection of acetylcholine solution in the anterior chamber during cataract surgery. Ninety eyes of 90 patients scheduled for extracapsular cataract extraction with posterior chamber intraocular lens implantation were randomly assigned to two groups: one which received acetylcholine solution in the anterior chamber and one, a control group, which received only external conjunctival pilocarpine drops as a miotic. At three days, endothelial folds (P = .04) and corneal edema (P = .01) were more pronounced in the acetylcholine group; at seven days, endothelial folds were more severe (P = .04) in the acetylcholine group. At 30 days, the acetylcholine group showed a 37.2% increase (P = .01) of the endothelial cell area, whereas the control group showed a 7.08% increase. The difference between the groups was statistically significant (P = .05). Anterior chamber fluorophotometry at 30 days showed an increase of the corneal transfer coefficient that was higher but not significant in the acetylcholine group. We suggest caution in the intraoperative use of acetylcholine solution, particularly in those eyes showing a preoperative compromise of the endothelium.
J Cataract Refract Surg 1989 Jul
PMID:Clinical evaluation of the effect of acetylcholine on the corneal endothelium. 277 88

Chronic postoperative bacterial endophthalmitis has recently assumed a prominent role in differential diagnosis of inflammation following extracapsular cataract extraction with posterior chamber intraocular lens implantation. The optimal diagnostic and therapeutic approach to this entity has not yet been clearly defined. We present a case of chronic postoperative Propionibacterium acnes endophthalmitis in which the diagnosis was made by anterior chamber paracentesis, and topical, periocular, and systemic antibiotic therapy resolved the inflammation. Anterior chamber paracentesis for aerobic and anaerobic cultures may be an appropriate initial diagnostic step in suspected cases. While successful treatment may require surgical intervention in some cases, others may respond to antibiotic therapy alone.
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PMID:Diagnosis and treatment of chronic postoperative bacterial endophthalmitis. 305 Jun 71

We report the results of with a ocular lens implantation in 132 cases of unilateral traumatic cataract. In most cases (130) the cataract was treated on using the extracapsular technique. Four types of intra-ocular lenses were used: Binkorst 2 loops implanted into the capsule (6%), Binkorst 4 loops sutured to the iris (18%), Anterior chamber implantation (19%), Posterior chamber implantation (57%). Implantation and cataract surgery were performed simultaneously in 85 cases (64.3%). Implantation was secondary in 47 cases (35.6%) implantation was performed as often in cases of contusion as in cases of perforating traumic, lens often in cases of intra-ocular foreign body. Implantation was usually primary in cases of contusion, now after secondary in cases of perforation. The most severe post operative complications are hypertony, corneal dystrophy (Binkorst 4 loops implantation and overall, anterior chamber lenses). Fonctional results in the child one 5 year old are about the same us in the adult. On the contrary in the child from 2 to 5, the results are bad because of the associated ocular lesions and fonctionnal amblyopia. In case of corneal associated lesions, it seems better to perform a primary implantation and eventually put the lens out of the center of the scar. Perforating keratoplasty must be reserved for cases of large central scotoma. In the cases of perforating trauma, surgery of the cataract must be differed if possible to allow simultaneous implantation.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Traumatic cataract and implantation]. 319 3

The authors studied prospectively 59 eyes with corneal edema after cataract surgery that required reconstructive surgery; penetrating keratoplasty in 59 (100%), anterior vitrectomy in 42 (71%), intraocular lens removal or exchange in 33 (56%), gonioplasty in 32 (54%), and iridoplasty in 30 (51%). With an average follow-up of 9.9 months, the corneal transplant was clear in 56 eyes (95%). The corrected visual acuity was improved in 49 eyes (83%) and was the same in seven eyes (12%). Intraocular pressure was less than or equal to 21 mmHg in 47 eyes (80%) and 22 to 29 mmHg in nine eyes (15%). The peripheral anterior synechiae score was the same or improved in 56 eyes (95%). Cystoid macular edema was absent to mild in 52 eyes (88%). Anterior segment reconstruction improved both anatomic integrity and visual acuity of most eyes without increasing complications.
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PMID:Results of anterior segment reconstruction for aphakic and pseudophakic corneal edema. 321 88

Anterior capsulotomy, a crucial step in extracapsular implant surgery, is performed by several methods. All must deal with the inherent capriciousness of the tense anterior capsule and so their precision is questionable. An anterior capsulotomy instrument that uses bipolar radio-frequency endodiathermy is described. The modulated high frequency current enables the surgeon to open the anterior capsule more accurately under controlled conditions.
J Cataract Refract Surg 1988 Nov
PMID:Anterior capsulotomy by means of bipolar radio-frequency endodiathermy. 323 May 26

Anterior chamber fluorophotometry was performed after the oral administration of fluorescein sodium in patients undergoing extracapsular cataract extraction and posterior chamber intraocular lens insertion before and after surgery. The administration of 0.5% ketorolac tromethamine solution (ketorolac solution) eye drops before and after surgery decreased the breakdown of the blood-aqueous barrier as compared with 0.1% dexamethasone sodium phosphate solution (dexamethasone solution) eye drops at each period, as measured by fluorophotometry. A single injection below Tenon's capsule of a short-acting corticosteroid had been given to each patient at the end of each surgical procedure. Slit-lamp observations of postoperative ocular inflammation were not different between treatment groups. Both ketorolac and dexamethasone solutions were well tolerated by patients. Ketorolac solution was more effective than dexamethasone solution in facilitating reestablishment of the blood-aqueous barrier after surgery, as measured by fluorophotometry, and was equal to dexamethasone solution as observed by slit-lamp observations. This study suggests that ketorolac ophthalmic solution may be effective and safe as a nonsteroidal anti-inflammatory agent for topical use after cataract surgery and intraocular lens implantation in place of topically administered corticosteroids.
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PMID:The quantitative effect of 0.5% ketorolac tromethamine solution and 0.1% dexamethasone sodium phosphate solution on postsurgical blood-aqueous barrier. 335 15

A randomized, controlled, prospective comparison of the effectiveness of anterior and posterior injections of antibiotics in the prevention of endophthalmitis following cataract extraction was carried out in a village hospital in Pakistan. The study involved 77,015 cataract operations performed mainly by two surgeons. Anterior subTenon injections ("subconjunctival") and posterior subTenon injections ("retrobulbar") were equally effective in preventing postoperative infection.
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PMID:A randomized, controlled comparison of anterior and posterior periocular injection of antibiotic in the prevention of postoperative endophthalmitis. 354 84

Between August 1982 and July 1985, 19 eyes were operated for pseudophakic retinal detachment (PRD) (Anterior chamber lens in 13 eyes, posterior chamber lens in 3 eyes and iris supported lens in 3 eyes). The characteristics of these pseudophakic retinal detachments were very similar to those following intracapsular cataract extractions. Retina was re-attached in 18 eyes (95%), in 14 eyes, after one buckling procedure. In 4 eyes, altogether 12 surgical procedures were needed to re-attach the retina. Problems to visualize the peripheral retina, made it necessary to remove the IOL in 3 eyes (2 iris fixated and one in the anterior chamber).
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PMID:Retinal detachment after intraocular lens implantation. 381 65

A retrospective chart review of 2,514 consecutive posterior chamber implants was carried out to assess the management of the posterior capsule when vision loss dictated intervention. The capsulotomy technique used between May 1977 and March 1983 was pars plana posterior capsulotomy (227 eyes). All posterior capsulotomies performed after April 1, 1983 were with the YAG laser (342 eyes). Comparison of the complications with the two methods showed considerable differences. Anterior segment problems appear greater following YAG laser posterior capsulotomy than pars plana posterior capsulotomy, whereas posterior segment complications appear similar in both techniques. Comparison of CME following both techniques indicates that a delay of 6 months or more between cataract surgery and posterior capsulotomy is advisable.
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PMID:Management of the posterior capsule before and after the YAG laser. 386 42


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