SEARCH · PubMed Health

Results for “CATARACT EXTRACTION”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 73 records · Page 4Linked to original sources

PubMed1983

Visual outcome and complications in 287 intraocular lens implants (Federow) compared with 290 intracapsular cataract extractions.

In 287 consecutively intracapsular cataract extracted eyes with a Federow intraocular lens implant (IOL) and 290 eyes with consecutively performed intracapsular cataract extractions (ICCE) the final visual outcome and complications were examined in a retrospective study. The average observation time was 31 months in the IOL group and 37 months in the ICCE group. Seventy-five per cent in the IOL group and 77% in the ICCE group achieved a visual acuity greater than or equal to 0.5. The main cause of a visual acuity less than 0.5 was maculopathy pre-operatively recognized. A visual acuity less than 0.5 due to post-operative complications occurred more frequently in the IOL group (28 eyes) compared with the ICCE group (13 eyes) - P less than 0.01. Twelve intraocular implants (4.3%) had to be removed. The most important cause was dislocation of the IOL (9 eyes). During our first 12 months of IOL implantation 8 dislocations occurred out of 56 implanted eyes (14.3%). The remaining 6 dislocations occurred among the last 231 IOL eyes (2.6%). It is concluded that complications are few, but often serious in intraocular lens implant surgery. Careful pre-operative examination and surgical experience are mandatory.

Aged↗

PubMed2001

Incidence of nonarteritic anterior ischemic optic neuropathy associated with cataract extraction.

OBJECTIVES: To determine the incidence of nonarteritic anterior ischemic optic neuropathy (NAION) after cataract extraction and to use the incidence to evaluate the causal relationship between cataract extraction and NAION. DESIGN: Cohort study. PARTICIPANTS: Five thousand seven hundred eighty-seven cataract extraction cases at the Bascom Palmer Eye Institute (BPEI) in a 5-year period between January 1, 1993 and December 31, 1997. METHODS: During the study period, an estimated 5787 cataract extraction cases were identified that met the following criteria: (1) the patient was 50 years of age or older, (2) surgery was performed by phacoemulsification or phacofracture techniques and not planned in combination with another procedure, and (3) follow-up was at BPEI. Charts of patients diagnosed with NAION from January 1, 1993 to December 31, 1998 were reviewed to detect the occurrence of NAION within 1 year of surgery. The diagnosis of NAION was based on the following: (1) an acute decrease in vision, (2) associated nerve fiber layer defect on visual field testing, (3) associated relative afferent pupillary defect, and (4) observed optic nerve edema. The exact binomial test was used to compare the incidence of NAION after cataract extraction against the expected incidence. MAIN OUTCOME MEASURE: Occurrence of NAION within 1 year after cataract extraction. RESULTS: Of the 5787 cataract extraction cases, three patients experienced NAION within 1 year of the procedure. Each case occurred after surgery on days 29, 36, and 117, giving an estimated 6-month incidence of 51.8 in 100,000 and a 6-week incidence of 34.6 in 100,000. Both were statistically higher than the previously reported overall incidence of NAION. Two of the three patients had a history of NAION in the contralateral eye. CONCLUSIONS: Cataract extraction is associated with an increased incidence of NAION, which is higher than the reported overall incidence. However, the risk of NAION after cataract extraction is low, with approximately one occurrence in every 2000 cases. A history of NAION in the fellow eye may be a risk factor.

Aged↗

PubMed1999

Extracapsular cataract extraction with a sutureless incision for dense cataracts.

PURPOSE: To evaluate the use of extracapsular cataract extraction (ECCE) via a sutureless incision for dense cataracts. SETTING: Nagata Eye Clinic, Nara, Japan. METHODS: This retrospective study comprised 51 eyes of 45 consecutive patients with dense cataracts who had ECCE with a sutureless incision between January 1996 and April 1998. A scleral incision from 6.0 to 8.5 mm was made at 12 o'clock or between 9 and 12 o'clock (oblique incision). Measures of outcome included postoperative visual acuity, surgically induced astigmatism (polar value method and vector analysis), complications, and changes in corneal endothelial cell density and morphology. RESULTS: Self-sealing was achieved in 45 eyes (88.2%), but additional sutures were required in 6 (11.8%). Intraoperative complications included posterior capsule rupture in 3 eyes (5.9%) and iris prolapse in 2 (3.9%). Corneal flattening against the preoperative steep meridian was observed in the 12 o'clock incision group (0.24 diopter [D] +/- 1.23 [SD]) and in the oblique incision group (0.17 +/- 0.89 D). By vector analysis, the surgically induced vector was 1.41 +/- 0.72 D in the 12 o'clock incision group and 1.02 +/- 0.66 D in the oblique incision group. After surgery, the mean cell loss was 8.2% +/- 12.5%. There were no significant differences, however, between other preoperative and postoperative morphometric indexes. CONCLUSION: This fast, safe, and inexpensive technique may be a viable treatment for dense cataracts with large, hard nuclei.

Aged↗

PubMed1979

Combined trabeculectomy and cataract extraction.

We performed combined trabeculectomy-cataract extraction in 37 eyes of 29 patients. Average follow-up was 23.7 months. Thirty-three (89.2%) of the 37 eyes were controlled with much improvement postoperatively. A total of 35 eyes (94.6%) were controlled postoperatively; 22 eyes (59.5%) required no medications postoperatively. No greater incidence of complications with the combined procedure from that expected with cataract extraction alone was evident, except for four flat or shallow chambers and four hyphemas, none of which appeared to have an adverse effect on the final outcome of the surgery. We believe that the combined trabeculectomy-cataract extraction is a valid and safe procedure, if not the procedure of choice, in our hands, for the patient with coexisting cataract and glaucoma, and the advantages of the greater pressure control with the single procedure outweight the small increase in the risks of the surgery.

Adult↗

PubMed1983

Cataract extraction in the sympathizing eye.

Cataract extraction was performed on the sympathizing eyes of six patients with sympathetic ophthalmia. In five patients the clinical diagnosis of sympathetic ophthalmia was supported by the results of histologic examination of the exciting eye. The postoperative period averaged 12 years, and visual acuities ranged from 20/25 to light perception. The presence of posterior synechiae posed the major complicating operative factor. Cystoid macular edema, vitreous opacity, pupillary membrane formation, and corneal opacification were associated with postoperative visual impairment in four cases. We conclude that the underlying status of the sympathizing eye at the time of cataract extraction and postoperative management are critical factors that influence ultimate visual outcome.

Cataract Extraction↗

PubMed1993

[Manual phacofragmentation in extracapsular cataract extraction].

The author describes three different techniques of manual phacofragmentation in extracapsular extraction of cataract. Based on the experience with the first 60 operations made by these techniques, the author recommends some principles which should be respected. In the mentioned group only once the posterior capsule was damaged in conjunction with division of the nucleus. When adequate care is not taken or when a poor techniques is used, k. striata occurs more frequently but disappears within one week. The author considers the described technique as a possible and suitable alternative of classical extracapsular extraction of cataract in departments where FAKO is not available.

Cataract Extraction↗

PubMed1992

National outcomes of cataract extraction. Increased risk of retinal complications associated with Nd:YAG laser capsulotomy. The Cataract Patient Outcomes Research Team.

PURPOSE: The authors studied 57,103 randomly selected Medicare beneficiaries who underwent extracapsular cataract extraction in 1986 or 1987 to determine the possible association between performance of neodymium (Nd):YAG laser capsulotomy and the risk of subsequent retinal break or detachment. METHODS: Cases of cataract surgery were identified from Medicare claims submitted in 1986 and 1987 and were followed through the end of 1988. Episodes of cataract surgery, posterior capsulotomy, and retinal complications were ascertained based on procedure and diagnosis codes listed in physician bills and hospital discharge records. Lifetable and Cox's proportional hazards models were used to analyze the risk of retinal detachment or break in patients undergoing and not undergoing capsulotomy during the period of observation. RESULTS: Of the 57,103 persons identified as having undergone extracapsular cataract extraction in 1986 or 1987, 13,709 subsequently underwent Nd:YAG laser capsulotomy between 1986 and 1988. A total of 337 persons had aphakic or pseudophakic retinal detachments between 1986 and 1988 and an additional 194 underwent repair of a retinal break. Proportional hazards modeling shows a 3.9-fold increase in the risk of retinal break or detachment among those who underwent capsulotomy (95% confidence interval: 2.89 to 5.25). Younger patient age, male sex, and white race also were associated with increased risk of retinal complications after extracapsular cataract extraction. CONCLUSION: The authors conclude that there is a statistically significant increase in the risk of retinal detachment or break in those patients who undergo capsulotomy after cataract extraction. Therefore, capsulotomy should be deferred until the patient's impairment caused by capsular opacification warrants the increased risk of retinal complications associated with performance of capsulotomy.

Aged↗

PubMed1984

Short- and long-term endothelial cell loss associated with cataract extraction and intraocular lens implantation.

A group of 249 patients undergoing cataract extraction with intraocular lens implantation underwent specular microscopic endothelial cell photographs before surgery and eight weeks, one year, and two years after surgery. The intraocular lenses used were the Shearing posterior chamber lens and the transiridectomy clip lens after extracapsular cataract extraction and the Medallion iris suture lens after intracapsular cataract extraction. Thirty-seven patients who underwent cataract extraction without implantation served as controls. Eight weeks after surgery, there was no statistical difference between the groups with intraocular lenses and the groups without them. One year and two years after surgery, endothelial cell loss had occurred in all groups except the group who underwent extracapsular cataract extraction without intraocular lens implantation--a group in which the patients were younger. The long-term endothelial cell loss was greater after intracapsular cataract extraction and was greater in the presence of an implant. There was statistically more endothelial cell loss with the transiridectomy clip lens than with the posterior chamber lens eight weeks and one year after surgery; the patients with posterior chamber lenses had continued to have more endothelial cell loss during the second postoperative year.

Aged↗

PubMed1991

[Effect of cataract extraction on aqueous humor dynamics in patients with senile cataract. A prospective fluorophotometric study].

The influence of posterior chamber lens implantation on the aqueous humor dynamics was investigated using anterior chamber fluorophotometry before and 9 weeks after cataract extraction and IOL implantation. Thirty-four patients finished the protocol. Patients with preexisting glaucoma or those having a history of ocular or systemic inflammation were excluded from the study, as were those taking topical or systemic drugs with potential influence on the aqueous humor dynamics. Nine weeks after IOL implantation a mean increase in aqueous humor flow was noted. This increase was highly significant (p less than 0.01, Student's paired t-test). There were no significant changes in aqueous humor dynamics in the unoperated fellow eyes which served as controls. The significant difference in aqueous humor flow 9 weeks after cataract extraction and IOL implantation indicates that the liberation of prostaglandins may cause an increase in the ease of outflow facility.

Aged↗

PubMed1990

[One-stage extracapsular cataract extraction with sinusotrabeculotomy in patients with combined glaucoma and cataract].

The paper deals with the question about surgical treatment of patients with glaucoma associated with cataract. A new technique of one-stage extracapsular cataract extraction with sinusotrabeculotomy is proposed. Its main point is a change in the sequence of stages: stage I--opening of anterior lens capsule, stage II--antiglaucomatous operation, stage III--extraction of lenticular nucleus and masses through a corneal incision. The operation was made in 30 patients (31 ages). The follow-up period was 2 years. Normalization of intraocular pressure was achieved in all patients, in one eye--miotics had to be used. All patients showed a rise of visual functions: in 21 of 31 eyes vision rose to 0.3 and higher. In one patient vision fell after a year because of progression of the glaucomatous process in the presence of normal intraocular pressure. One-stage extracapsular cataract extraction with sinusotrabeculotomy can be made at any stage of glaucoma. By the authors' data, contraindications can be a rise of intraocular pressure above 40.0 mm Hg as well as the presence of a single eye and severe course of hypertonic disease.

Cataract Extraction↗

PubMed1983

The value of preoperative electro-ophthalmological examination before cataract extraction.

In 203 senile cataractous eyes preoperative results of photopic flash ERGs and VERs were compared with the optimum visual acuity after cataract extraction. Because preoperatively for some reason a good function of the retina or the conductive system was questionable, patients were referred to the electro-ophthalmological department. This encompassed approximately 10% of patients with a senile cataract. The relationships found indicated that the photopic flash ERGs and VERs are a good support for estimating post-operative visual function.

Cataract↗

PubMed1977

Cystoid macular edema occurring 13 years after cataract extraction.

Thirteen years after cataract extraction, a patient complained of diminished visual acuity. In the interim visual acuity was 6/6 (20/20), or 6/7.5 (20/25+2). Fluorescein angiography demonstrated cystoid macular edema. Except for vitreous adherence to the inner surface of the cataract wound, no ocular cause for the macular edema was apparent.

Cataract Extraction↗

PubMed1997

Cataract extraction after retinal detachment.

Cataract surgery is a known risk factor for retinal detachment. The risk for retinal redetachment after cataract surgery in eyes that have previously undergone retinal detachment repair is not well documented but has recently been investigated. Eyes that have undergone previous scleral buckling surgery have good potential for positive visual outcome after cataract surgery, with a low rate of intraoperative complications and a low risk for recurrent retinal detachment. Eyes with complicated retinal detachments that have undergone vitrectomy as part of surgical repair may have a higher rate of intraoperative complications, including difficulty with nuclear expression during planned extracapsular cataract extraction and capsular tears during irrigation and aspiration. The risk for recurrent retinal detachment in these eyes is not known.

Cataract↗

PubMed1988

Corneal astigmatism after cataract extraction.

We studied all cataract surgery done at the ophthalmologic clinic of the University of Bari, Italy in the last 20 years (1966-85). We considered three methods of anterior-chamber incision (blade, Worsth's knife, Graefe's bistoury) and their effect on the dioptric values obtained from ophthalmometry a year after surgery. The larger corneal astigmatism occurred after opening the anterior chamber with Graefe's method; the best results were obtained using Worsth's knife. In this evaluation, the surgeon was not considered. Because postsurgical astigmatism is important for visual acuity after cataract extraction, it is desirable to keep astigmatism as minor as possible.

Astigmatism↗

PubMed1978

Prolonged hypotony following cataract extraction.

Hypotony after intracapsular cataract extraction was prolonged in 3 eyes because cyclodialysis clefts were inadvertently formed. One eye became normotensive with the topical application of corticosteroid; 2 required surgical intervention.

Anterior Chamber↗

PubMed1980

Cataract extraction after fistulizing operation.

Cataract extraction after a fistulizing operation poses many problems for the surgeon. No satisfactory solution has been found yet to these problems, although the procedure has become safer owing to new microsurgery techniques, so that the rate of success is higher than with previous techniques.

Cataract↗

PubMed1984

Retinal detachment in myopic eyes after intracapsular and extracapsular cataract extraction.

We analyzed two consecutive series of cataract extractions in patients with moderate to severe myopia for the incidence of postoperative retinal detachment. One series consisted of 122 intracapsular cataract extractions without surgical loss of vitreous and the other series consisted of 151 extracapsular (phacoemulsification and planned extracapsular) cataract extractions without loss of vitreous and with intact posterior capsules. All patients were 40 years of age or older and all were followed up for one to four years. We defined moderate to severe myopia as an aphakic refraction of +7.00 diopters spherical equivalent or less. The rate of postoperative retinal detachment was greater in the intracapsular series (seven of 122 cases; 5.74%) than in the extracapsular series (one of 151 cases; 0.66%).

Adult↗

PubMed2004

Risk factors for failure of simultaneous penetrating keratoplasty and cataract extraction.

OBJECTIVE: To evaluate the indications, complications, and outcomes of simultaneous cataract extraction and penetrating keratoplasty (PKP) and the risk factors for failure of the procedure. SETTING: Tertiary referral medical center. METHODS: In a retrospective noncomparative interventional case series, the charts of 66 consecutive patients (70 eyes) who had simultaneous PKP and cataract extraction using the same surgical technique were reviewed. RESULTS: The mean follow-up was 32.4 months (range 6 to 125 months). The primary corneal graft remained clear in 48 eyes (69%) and failed in 22 eyes (31%). Sixteen eyes with a failed graft (73%) had 1 or 2 repeat keratoplasties; 8 (50%) were successful. At the end of follow-up, 56 eyes (80%) had a clear corneal graft. Nine eyes (41%) with a failed primary graft and 2 eyes (4%) with a clear primary graft had intracapsular cataract extraction (P<.001); 13 eyes (59%) and 46 eyes (96%), respectively, had extracapsular cataract extraction (P<.001). All eyes with a failed primary graft and 18 eyes (37%) with a clear primary graft had postoperative complications (P<.001). Eyes with a failed graft had more postoperative surgical interventions (P<.001). There were no statistical differences between eyes with clear grafts and eyes with failed grafts in sex, age, indications for surgery, corneal graft diameter, intraoperative vitreous loss, and intraocular lens placement. CONCLUSIONS: Intracapsular cataract extraction, postoperative complications, and postoperative surgical interventions may increase the risk for graft failure in simultaneous cataract extraction and PKP. Intraocular lens implantation did not increase the risk for graft failure.

Adolescent↗