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Results for “CATARACT EXTRACTION”

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PubMed1977

Iris-supported lens implantation v. simple cataract extraction. An analysis of data.

In a study of a selected age (greater than 60) and ocularly matched population requiring cataract extraction, a perfectly executed intracapsular cataract extraction followed by the introduction of a Fyodorov Type II ("Sputnik") lens did not lead to irreversible anterior or posterior segment changes different from those seen in a group followed for from 5 to 9 years. It did lead to an incidence of implant support dislocation and to membrane formation in about 10% of cases, reducible to about 2% with correctly made lenses and the appropriate use of postoperative drugs. The incidence of corneal degeneration (0), retinal detachment (2%), and intraretinal cystic maculopathy (3%) was equal in each group. Visual acuity levels were also equal. In appropriate cases, if the surgery is carried out with sufficient skill, the reward to risk ratio of implantation not only justifies but indicates the use of such lenses.

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PubMed1979

Extracapsular cataract extraction with simultaneous implantation of 300 Copeland iris plane lenses: five-year follow-up--a retrospective study.

Three hundred cases of extracapsular cataract extraction with Copeland iris plane lens implantation were reviewed. Two hundred sixty-six patients were followed objectively from 180-1,420 days with a mean follow-up of 1,026 days. 12.4% necessitated secondary operations, most of these being posterior capsulotomies. 89.5% of patients with a mean age of 73.6 years achieved visual acuity of 6/6-6/12. Using an extracapsular cataract extraction with a Copeland iris plane lens, the results obtained were considerably improved over that of intracapsular surgery. A similar retrospective study of a larger series using extracapsular cataract extraction with the Binkhorst iridocapsular lens is currently being carried out.

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PubMed1981

Frequency of cataract extraction in Greenlanders.

The total number of cataract extractions in Eskimos in Greenland was 43 during 1979 and 1980. Of these 28 were performed as first eye extractions. The frequency of first eye extractions was found to be rather high, respectively 42 and 72 per 10.000 persons in 60-69 and 70-79-year-old persons. Racial, nutritional, climatological factors together with "backlog effect" are discussed.

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PubMed1989

Combined extracapsular cataract extraction and trabeculectomy using a separated corneal section.

A retrospective study of 35 cases of extracapsular cataract extraction with posterior chamber lens implant combined with trabeculectomy was undertaken. The cataract extractions were performed through a corneal section to separate the cataract wound from the trabeculectomy. Control of intraocular pressure was achieved without medication in 77% of cases. Median improvement in visual acuity was 3.5 lines at one year. This technique provided improved trabeculectomy drainage compared with previous reports for corneoscleral incisions. Improvement in visual acuity was poorer for a group of patients with severe preoperative field loss.

Cataract Extraction↗
PubMed2000

[Cellular response one year after extracapsular cataract extraction--comparison of regular and heparin surface modified PMMA intraocular lenses].

PURPOSE: To compare the heparin-surface-modified and the regular polymethylmethacrylate posterior chamber intraocular lenses regarding cellular reactions one year after extracapsular cataract extraction. MATERIAL AND METHODS: 62 patients of either sex, with senile cataract, without diabetes and any preoperative pathology of the eye, were included in the study. 30 patients received HSM PMMA PC IOL and 32 patients received unmodified PMMA PC IOL. All patients had a standard extracapsular cataract extraction. At the examination after one year the best corrected visual acuity was defined, anterior segment of the eye was evaluated biomicroscopically, cell deposits were assessed and the state of posterior capsule was noticed. RESULTS: One year postoperatively all patients in both groups had the best corrected visual acuity better than 0.5. Significantly fewer eyes with the HSM PMMA PC IOLs had cell deposits on the anterior surface of the lens (20% vs. 37.5%). The amount of cell deposits per patients was small. Irregularity of the pupil with presence of posterior synechias did not differ significantly between the groups. The percentage of patients with clear posterior capsule was greater in the group with implanted heparin-modified artificial lenses. CONCLUSION: The study suggests that heparin-surface-modified posterior intraocular lenses result in less postoperative cellular response observed one year after extracapsular cataract extraction.

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PubMed2000

Effect of age on visual outcome following cataract extraction.

AIM: To determine the effect of age on final corrected visual acuity following cataract extraction. METHODS: A case series of 880 patients aged 60 years and older undergoing cataract extraction between 1996 and 1999 was studied. The best corrected visual acuity was assessed at discharge from the service and the proportion of patients who achieved a postoperative acuity of > or = 6/12 was determined for different age groups. Analysis was also performed after exclusion of patients identified preoperatively as having ocular comorbidity that was thought to limit their final corrected acuity. The odds ratios for visual outcome were calculated for age using multiple logistic regression analysis to adjust for other prognostic factors. RESULTS: A significant age effect was observed, with the proportion of patients who had no ocular comorbidity identified preoperatively and who achieved a visual acuity of > or = 6/12 at discharge decreasing with age (p<0.001). In patients with no comorbidity the odds of achieving an acuity of > or = 6/12 were 4.6 times higher in the 60-69 year age group than in the oldest age group (80+ years). CONCLUSIONS: Age is a significant determinant of visual outcome. This has implications if a points system incorporating an assessment of visual acuity or if visual acuity alone is used to determine the threshold for eligibility for cataract surgery.

Age Factors↗
PubMed1976

Cataract extraction in pathological myopia.

Fifty-three cataract extractions in eyes with pathological myopia effected visual improvement in 47 eyes (89%). The median visual acuity increased from a preoperative level of 20/300 to 20/40 postoperatively. The incidence in this series of vitreous loss (1.9%) and retinal detachment (1.9%), are within the expected range of such complications. Four cases developed aphakic glaucoma which has necessitated continued therapy. All four had both enzyme zonulolysis and topical steroids, postoperatively. Other problems unique to surgery in these eyes are the missed diagnosis of nuclear cataract, possible dislocation of the lens, perforation of the sclera during retrobulbar injection, and rupture of the globe with vigorous digital massage.

Cataract Extraction↗
PubMed1983

Increased mortality among elderly patients undergoing cataract extraction.

One hundred sixty-seven patients aged 50 years or more had cataracts extracted between Jan 1, 1979, and Dec 31, 1979, at the New England Medical Center, Boston. In comparison with 824 patients who elected one of six other surgical procedures, when data were stratified according to age and sex, patients undergoing cataract extraction had nearly twice the mortality of the reference patients. Analysis indicated diabetic patients did not significantly alter the relative mortality. Our results support the concept that senile cataracts reflect systemic phenomena rather than only local ocular disease.

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PubMed1978

[Filtering blebs after cataract extraction (author's transl)].

Filtering blebs following cataract extraction with a limbus based flap may occur approximately 2 to 3% of the time. Difficulty with wearing of contact lens may ensue, the likelihood of infection with postoperative endophthalmitis is remote. A technique for repair by excision of the bleb with a sliding conjunctival flap is described. The results in five patients are reported.

Blister↗
PubMed1976

Mooren's ulcer: two cases occurring after cataract extraction and treated with hydrophilic lens.

Two patients developed Mooren's ulcer following cataract extraction. The first case was complicated by ocular trauma 8 years prior to surgery and by vitreous loss at the time of surgery. The second patient underwent cataract extraction without complication. Surgical trauma may have been the inciting factor in the development of these ulcers. Both patients experienced dramatic relief of ocular pain following the application of hydrophilic lenses. There was no apparent alteration in the course of the disease in either case. The use of hydrophilic soft lenses is suggested for symptomatic relief of the severe ocular pain experienced by patients with Mooren's ulcer.

Adult↗
PubMed1984

Giant papillary conjunctivitis following cataract extraction.

Out of a series of 600 cataract extractions, 14 patients were found to have giant papillary conjunctivitis (GPC) due to 10-0 nylon sutures. When renewed conjunctival irritation appears weeks or months after surgery, GPC should be suspected and confirmed by eversion of the upper eyelid at the slit lamp. Free edges of protruding corneoscleral nylon sutures should be looked for. Signs and symptoms of GPC disappear within one to four weeks after removal of the offending suture.

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PubMed1983

Combined procedure: sub-scleral trabeculectomy with cataract extraction.

A sub-scleral trabeculectomy and cataract extraction were performed in 34 eyes of 28 patients. Postoperative visual acuity was 6/6 to 6/12 in 24 eyes. Nine of the remaining 10 eyes had pre-existing glaucomatous neuropathy or chorioretinal maculopathy. Duration of follow-up extended from a minimum of 12 months to a maximum of 68 months. Thirty eyes exhibited satisfactory glaucoma control (88.2%). Twenty-one eyes (61.7%) required no medication postoperatively. There were no significant postoperative complications from the combined procedure.

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PubMed1991

[Comparison of the anti-miotic effect of 0.03% flurbiprofen with 1% indomethacin in cataract extraction].

Maintaining successful mydriasis is essential during cataract extraction. The use of nonsteroidal anti-inflammatory drugs in order to inhibit trauma induced miosis has been advocated by many authors. Indomethacin 1% has proved his efficacy since many years. Flurbiprofen has been introduced more recently and has been accepted largely because of a better patient comfort. He proved his efficacy against placebo. We conducted a randomized double blind study in order to verify if there is any difference in efficacy between these two drugs. 40 cases were randomly assigned to a pretreatment, not known by the surgeons, with Indomethacin 1% (Indoptic) or Flurbiprofen 0.03% (Ocuflur). Measurements were taken at the beginning of surgery, after nucleous extraction and after irrigationaspiration of lens cortical material. Sodium hyaluronate and epinephrine were not used during this study. After nucleous extraction, the mean pupillary constriction was 1.53 mm in the Indomethacin group and 1.23 mm in the Flurbiprofen group (p greater than 0.1). After aspiration of cortical material, the mean pupillary constriction was 2.27 mm in the Indomethacin group and 2.00 in the Flurbiprofen group (p greater than 0.1). Cumulative results of patients who constricted the pupil more than 2 and 3 mm showed a better result in the Flurbiprofen group. Flurbiprofen has proved in this study his efficacy compared to an other nonsteroidal anti-inflammatory drug in inhibiting trauma induced miosis.

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PubMed1983

Complications in primary anterior chamber pseudophakic eyes after intracapsular cataract extraction.

The principles of the authors' intracapsular cataract extraction technique, with and without pseudophakos, are outlined. The histopathological examination (2--6 years after surgery) confirms the accuracy of the clear corneal section, and the potential, although minor risks, of anterior chamber pseudophakos implantation: a multilaminar fibrous plaque covering intraocular tissue and pseudophakos surfaces often occurred. Ectropion uveae, as observed in a few cases, is a new symptom. Fuchs's keratopathy was exceptional and endothelial cell loss was unremarkable in our series compared to age-matched aphakic eyes. Cystoid edema and retinal detachment did not occur more frequently than in ordinary aphakic eyes. Retinal angiomatous changes with edema may develop and are another, not described symptom.

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PubMed1996

The pattern of cataract and the postoperative outcome of cataract extraction in Ethiopian leprosy patients as compared to nonleprosy patients.

Cataract is a blinding disease occurring all over the world. One of the causes of cataract is leprosy. Sixty leprosy and 100 nonleprosy patients were assessed and underwent intracapsular cataract extraction. Leprosy patients with cataract were much younger than nonleprosy patients. The leprosy group had a significantly higher rate of complications and this was seen more in paucibacillary cases. There was a higher rate of visual disability in the leprosy group than in the nonleprosy group. Cataract was seen in younger patients in the leprosy group. This raised the possibility of leprosy being the cause of the cataract. The leprosy group consisted mostly of multibacillary cases, however unlike in other studies the rate of complications tended to be higher in the paucibacillary group. There were no preoperative findings that correlated with a low postoperative intraocular pressure.

Cataract↗
PubMed1995

Causes of decreased visual acuity after cataract extraction.

We analyzed a consecutive series of cataract extractions to determine the causes of unsuccessful results. Our criterion was a decrease in visual acuity from the preoperative measurement. Fourteen of 1237 eyes met this criterion. In three of the 14, visual acuity was decreased by more than two Snellen lines. Vitreous loss occurred in seven of the eyes. In six of these, cystoid macular edema developed. The reasons for reduced visual acuity were cystoid macular edema (eight eyes), an aggravation of age-related maculopathy (three eyes), and vitreous hemorrhage and herpetic keratitis (one eye each). A branch vein occlusion caused macular edema and vitreous hemorrhage in one eye. From this data, we recognize the importance of avoiding vitreous loss. If it does occur, we recommend that meticulous anterior vitrectomy be performed, with as little manipulation as possible.

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PubMed1996

A follow-up study on visual outcome after camp-based intracapsular cataract extraction.

The visual outcome of 164 intracapsular cataract extractions (ICCE) performed in 158 patients at an eye-camp was evaluated. 93.3% had a preoperative visual acuity of less than 3/60. On the 4th/5th post-operative day, 39.3% had a visual acuity between 6/18 and 6/36; 84.7% had vision better than 3/60. Six weeks post-operatively, 44.1% had visual acuity better than 6/18 and a total of 84.1% better than 3/60. The vision of 40.7% improved between the 4th/5th post-operative day and the follow-up visit at 6 weeks. 46.4% of patients had post-operative corrected visual acuity better than 6/18, 24.3% had vision between 6/18 and 6/36, and a total of 84.3% had vision better than 3/60. The patients' satisfaction in terms of improvement in mobility and ability to do housework at 6 weeks after the operation correlated better with the improvement in vision in terms of the number of Snellen's lines than with the actual post-operative visual acuity.

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