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Results for “CATARACT EXTRACTION”

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PubMed1996

[Viscoexpression of the lens nucleus in extracapsular cataract extraction].

The author rates the frequency of peroperative complications during cataract extraction performed by continuous curvilinear capsulorhexis (CCC) and viscoexpression technique. The total number was 369 cases, the peroperative complication was noted in 8.1% cases. The relaxing incision of anterior capsule was noted in 17.1% of cases. The most frequent complication in cases without relaxing incision (82.9%) was asymetric implantation of IOL (sulcus-bag, 2.6%). In cases with relaxing incision (17.1%) the most frequent complication was posterior capsule rupture with subsequent anterior vitrectomy (7.9% from total of 17.1%).

Cataract Extraction↗

PubMed1978

The visual results after vitreous loss during cataract extraction.

We followed the progress of 50 eyes in which cataract extraction was complicated by vitreous loss for 6 to 48 months and matched them with 50 eyes that had not lost vitreous. The results show that the number of eyes attaining 6/6 (20/20) or 6/7.5 (20/25) vision is significantly higher in the controls. All eyes that had vitreous loss retained useful vision. A comparison between our cases managed by vitrectomy and those of vitreous loss without vitrectomy reported in the literature, showed that vitrectomy gave better visual results with fewer complications.

Cataract Extraction↗

PubMed1992

Visual outcome following complicated extracapsular cataract extraction.

In a prospective study of 1,597 consecutive extracapsular cataract extractions (ECCE), we review 49 cases complicated by capsular or zonular rupture with or without vitreous loss. The ECCEs were divided into two groups depending on the type of intraocular lens (IOL) implanted. In Group A, whose patients received an anterior chamber lens, we found a significantly (P < .05, t-test) worse postoperative visual acuity than in Group B whose patients received a posterior chamber lens. We therefore suggest that in the presence of a capsular tear and vitreous loss, one should try to implant a posterior chamber lens rather than an anterior chamber lens to obtain as good a visual acuity as possible.

Aged↗

PubMed1983

[Incision procedure in cataract extraction after filtering glaucoma operations].

The authors report on 72 cataract extractions following filtering procedures for glaucoma. In 45 cases they performed a purely corneal incision in the upper part of the globe (in 17 cases the classical von Graefe knife incision was used; in 28 cases a three-plane incision ab externo using a razor blade and scissors was done). In the other 27 cases the globe was opened from the outer surface by performing a corneoscleral incision with a limbus-based conjunctival flap. With regard to postoperative intraocular pressure and intraoperative and postoperative complications the two techniques - the ab interno incision and the ab externo incision - produced equally good results. Moreover, a slightly higher residual astigmatism was observed after the purely corneal incisions. The advantages and disadvantages of the two techniques for opening the globe following a filtering procedure for glaucoma are discussed. Finally the authors describe the procedure they currently use, depending on the preoperative situs.

Astigmatism↗

PubMed1998

Long-term follow-up of extracapsular cataract extraction and posterior chamber intraocular lens implantation in patients with uveitis.

OBJECTIVE: The objective of the study was to determine the long-term outcome of patients with uveitis who underwent extracapsular cataract extraction (ECCE) and posterior chamber intraocular lens (PCIOL) implantation. DESIGN: Retrospective review. PARTICIPANTS: Twenty-eight patients (36 eyes). INTERVENTION: Extracapsular cataract extraction and PCIOL implantation. MAIN OUTCOME MEASURES: Level of best-corrected Snellen visual acuity, change in visual acuity, length of follow-up, long-term findings, and complications. RESULTS: In long-term follow-up (mean, 81.4 months), 94% of eyes had visual acuity improvement compared with preoperative levels. Average change in visual acuity for all eyes was an improvement of 6.4 Snellen lines; 75% of eyes were 20/40 or better. The prevalences of cystoid macular edema (CME), epiretinal membrane (ERM), and posterior capsule opacification (PCO) were 56%, 56%, and 58%, respectively. CONCLUSIONS: Patients with uveitis who are treated with ECCE with PCIOL implantation can have successful visual results in long-term follow-up despite the prevalence of PCO or macular abnormalities such as CME and ERM.

Cataract↗

PubMed1992

The results of combined cataract extraction and trabeculectomy using separate incisions.

A method of combined cataract extraction with posterior chamber intraocular lens and trabeculectomy using separate incisions was tested in 44 operations on 38 patients. The mean preoperative intraocular pressure (IOP) of 28.1 +/- 11.7 (range 12 to 56) mmHg on maximum medication was lowered to 13.9 +/- 3.4 (9 to 23) mmHg at one year, with half the eyes still requiring topical medication. The IOP was 40 mmHg or more preoperatively in eight eyes and 20 mmHg or more in only two patients at one year. There were no rises in IOP above 20 mmHg in the early postoperative period (days 1 and 2). Visual acuity was 6/9 or better in 27 and 6/12 in three eyes. There was an expulsive haemorrhage in one case, rupture of the posterior capsule in two eyes and a choroidal detachment in one eye, but no flat anterior chambers. The two-incision method allowed placement of an intraocular lens with good post-operative pressure control.

Adult↗

PubMed1976

Combined trabeculotomy and cataract extraction as a single operation.

A technique for combined trabeculotomy and cataract extraction is described. The application of the combined procedure in 17 eyes with chronic glaucoma and immature senile cataract is described. The results were uniformly good, and only one patient required further treatment for glaucoma.

Cataract Extraction↗

PubMed1982

[Absence of the anterior chamber following cataract extraction ].

A non-existent or extremely flat anterior chamber following cataract extraction is now very rare due to the fact that waterproof wound closure has become standard practice. Among 1,051 cataract operations carried out in our clinic during the past three years this complication was observed only 13 times, i.e. in 1,2 percent of the cases. The complication occurred slightly more frequently in diabetics and patients with glaucoma. Methods of preventing the complication and both drug and surgical treatment are discussed. In our cases surgical intervention was never necessary.

Anterior Chamber↗

PubMed1993

Extracapsular cataract extraction in proliferative diabetic retinopathy.

PURPOSE: To establish the visual prognosis, prevalence of complications, and optimal strategy for management of proliferative diabetic retinopathy (PDR) in isolated extracapsular cataract extraction (ECCE). METHOD: This is a retrospective review of 56 patients with PDR who underwent ECCE with lens implantation. Results were compared with 64 patients with background diabetic retinopathy (BDR) operated on during the same time period. RESULTS: Final visual acuity (67% > or = 20/40) was better in BDR eyes compared with PDR eyes (21% > or = 20/40; P < 0.001). In eyes without maculopathy, 94% with BDR achieved a final visual acuity of at least 20/40 compared with 52% with quiescent proliferative retinopathy (P < 0.001). Final visual acuity in eyes with maculopathy was better in BDR eyes (36% > or = 20/40) than in PDR eyes (5% > or = 20/40) (P < 0.02). No patient with active proliferative or preproliferative retinopathy achieved a final visual acuity of more than 20/80. Postoperative deterioration of retinopathy occurred in 50% of patients with active proliferative retinopathy compared with 10% with quiescent proliferative retinopathy (P < 0.01) and 3% with BDR (P < 0.001). Immediate postoperative fibrinous anterior uveitis, which prevented early panretinal photocoagulation, developed in over half the patients with active proliferative retinopathy. CONCLUSIONS: Final visual acuity after cataract extraction in diabetic patients with proliferative retinopathy is generally poor; however, in patients with quiescent proliferative retinopathy and no maculopathy, visual acuity may be good. Active proliferative retinopathy at the time of surgery is a poor prognostic indicator for final visual acuity and is associated with postoperative deterioration of retinopathy and fibrinous uveitis, which may preclude immediate postoperative panretinal photocoagulation.

Adult↗

PubMedDate not supplied

[Intraocular pressure after cataract extraction by Nd:YAG laser with a wave length of 1.44 mcm].

The purpose of the study was to analyze in detail the condition of intraocular pressure (IOP) in cataract extraction performed by means of a new device, which was designed by us and which is based on the use of Nd:YAG laser with a wave length of 1.44 mem. 320 eyes were examined on a randomized basis in 212 patients after laser cataract extraction. According to the obtained results at the initial stage of using the technique in question (the first study group) there was registered a significant growth of IOP (Po) as compared with the preoperative level; besides, the easy discharge coefficient went down during the early postoperative period. However, Po did not exceed the upper norm limit in 92% of cases. The tonographic parameters recovered during 2 months after surgery. As the developed variant of the surgical technique was made use of (the second study group), the obtained results turned out to be better. Fixation of the working heads in the center of the operative field and as far as possible from the ocular sensitive zones was the most important condition of safe surgery. When the optimal surgical technique was combined with preserving a stable layer of viscoelastic during the whole time period of destruction of the nucleus, then it was possible, in the early postoperative period, to avoid an increase of mean Po values and a decrease of the easy discharge coefficient. The maximum values of IOP (Po) were found to be normal in 91.8% of cases. The conducted study proves that the technique, worked out by us, does not cause any pronounced changes in the hydrodynamics of an operated eye, which suggests a more sparing nature of laser action as compared to that of ultrasound.

Aged↗

PubMed1990

Intraocular lens implantation following extracapsular cataract extraction in uveitis.

We reviewed the results of intraocular lens (IOL) implantation in the posterior chamber following extracapsular cataract extraction (ECCE) in 70 cataractous eyes with various types of endogenous uveitis, predominantly acute anterior uveitis, Fuchs' heterochromic cyclitis, Harada's disease, and Behçet's disease. During an average of 23.1 months' follow-up (range, 13 to 48 months) there was no exacerbation of the preexisting uveitis in any of the eyes. Postoperative visual acuity in all eyes was better than it was preoperatively, although further procedures were required in some eyes: a pars plana vitrectomy in one, a surgical peripheral iridectomy in one, and Nd:YAG laser capsulotomy in 10. Our results suggest that selected uveitis patients can tolerate and benefit from an ECCE and IOL implantation.

Adolescent↗

PubMedDate not supplied

Effects of 0.5% and 0.25% apraclonidine on postoperative intraocular hypertension after cataract extraction.

PURPOSE: We conducted a double-masked, prospective study to evaluate the effect of 0.5% and 0.25% apraclonidine on postoperative intraocular pressure (IOP) in patients undergoing extracapsular cataract extraction (ECCE) with intraocular lens (IOL) implantation. METHODS: Fifty-four patients scheduled for ECCE were randomly divided into three groups of 18. The first group received one drop of 0.50% apraclonidine topically one hour before surgery and immediately after the end of the procedure. The second group received the same regimen but with 0.25% apraclonidine. The third group received artificial tears as the control group. IOP was measured 12 h preoperatively and 6 and 24 h postoperatively. All the measurements were made using the same Goldmann applanation tonometer by the same surgeon who did not know to which group the patient belonged. RESULTS: Preoperative mean IOP was 13.66 +/- 2.76 mmHg in the first group, 14.27 +/- 2.24 mmHg in the second and 14.5 +/- 1.34 mmHg in the control group. The differences were not significant (p = 0.398). Mean IOP at the early postoperative visit (6 h) was significantly lower in the first group (17.44 +/- 4.95 mmHg) than the second (21.78 +/- 7.19 mmHg) and the control group (24.55 +/- 5.65 mmHg) (p < 0.001). Mean postoperative IOP at 24 h was again significantly lower in the first group (14.33 +/- 3.75 mmHg) than the second (17.11 +/- 4.16 mmHg) and the control group (19.61 +/- 3.20 mmHg) (p, 0.001). CONCLUSIONS: Our findings indicate that topical 0.5% apraclonidine controlled early postoperative intraocular hypertension after cataract extraction without any side effects, while the 0.25% drops were not effective.

Adrenergic alpha-Agonists↗

PubMed1982

Intermediate post cataract extraction ischemic optic neuropathy associated with an intraocular lens implant.

An 81 year old patient underwent uncomplicated intracapsular cataract extraction with an anterior chamber lens implant. Three weeks after surgery, he developed ischemic optic neuropathy associated with increased intraocular pressure. There was visual recovery with lowering of the intraocular pressure. This is the first documented case of post cataract extraction ischemic optic neuropathy associated with an intraocular lens.

Aged↗

PubMed2006

Outcome of simultaneous phakic implantable contact lens removal with cataract extraction and pseudophakic intraocular lens implantation.

PURPOSE: To assess the outcome of simultaneous implantable contact lens (ICL) removal and cataract extraction with pseudophakic intraocular lens (IOL) implantation. SETTING: CODET Aris Vision Institute, Tijuana, Mexico. METHODS: This retrospective noncomparative interventional case series evaluated 14 eyes of 12 patients with ICL implantations who developed a cataract and simultaneously had ICL removal and cataract extraction with IOL implantation. The follow-up time was at least 6 months (range 6 to 24 months). Visual acuity (logMAR), manifest refraction, intraocular pressure, and adverse events were recorded. RESULTS: Of the 12 patients (14 eyes), 10 patients (12 eyes) had ICL surgery to correct high myopia and 2 patients (2 eyes), to correct hyperopia. The mean uncorrected visual acuity after ICL implantation (before cataract development), before cataract surgery, and after cataract surgery were 0.48 +/- 0.32, 0.83 +/- 0.34, and 0.40 +/- 0.27, respectively. The mean best corrected visual acuity (BCVA) before ICL implantation, after ICL implantation, and after cataract surgery were 0.31 +/- 0.21, 0.28 +/- 0.19, and 0.27 +/- 0.21, respectively. The mean final manifest spherical equivalent was 0.30 diopters (D) +/- 1.07 (SD) (range +2.38 to 2.0 D). Ten eyes (71.4%) were within +/-1.0 D of the calculated target. One eye had a tear in the posterior capsule with vitreous loss during cataract surgery. No other intraoperative, perioperative, or postoperative complications were observed. No loss of BCVA was recorded at the last postoperative visit. CONCLUSIONS: Lens opacities and cataract formation are a potential complication of ICL surgery. The removal of the ICL and the cataract with IOL implantation was found to be safe, with predictable refractive results.

Adult↗

PubMedDate not supplied

Contrast sensitivity function after cataract extraction and intraocular lens implantation.

Divergent contrast sensitivity findings have been reported in patients with intraocular lens implants. The purpose of this study was to determine contrast thresholds of patients with good visual acuity after uncomplicated cataract extraction and posterior chamber conventional IOL implantation. Fifty-two eyes of fifty two patients, who had undergone uncomplicated extracapsular cataract extraction and posterior chamber intraocular lens implantation together with 48 eyes of 48 control subjects were tested for contrast sensitivity function. All of the patients had best corrected visual acuity 0.8 (20/25) or better, on the Snellen scale. Patients with concomitant eye disease were excluded. Contrast sensitivity was measured using stationary sine-wave gratings of four spatial frequencies (3.0 to 18.0 cycles/degree), at the testing distance of 8 feet. A loss of contrast sensitivity was found in patients with intraocular lens implants, compared with control subjects of similar age, sex and visual acuity. The loss was statistically significant at intermediate (6 cyc/deg) and high spatial frequencies (12.0 and 18.0 cycles/degree), while it was not statistically significant at low spatial frequencies (3 cyc/deg). This may be the reason of nonspecific visual complaints ('washed-out images'), despite normal Snellen acuity, after cataract surgery and monofocal IOL implantation.

Cataract Extraction↗

PubMed1986

Regression of Labrador keratopathy following cataract extraction.

Labrador keratopathy (LK) is an acquired corneal degeneration thought to be caused by chronic exposure to solar irradiation. Reports so far suggest that it is a progressive or at least a stationary condition. There are no detailed reports on recommended therapy. A prospective clinical study was conducted to show regression of LK following extracapsular cataract extraction. Seventeen black patients (26 eyes) with LK and mature cataracts underwent extracapsular cataract extraction. The severity of the LK was recorded photographically pre- and postoperatively. The follow-up ranged from 6 to fifteen months. Twenty-four eyes (92%) showed regression of the LK. The reduction in exposure to ultraviolet light as a result of aphakic photophobia could be one of the factors which have led to the regression of the LK.

Aged↗

PubMed1999

Postoperative inflammation: extracapsular cataract extraction versus phacoemulsification.

PURPOSE: To quantitatively compare postoperative inflammation after extracapsular cataract extraction (ECCE) with that after phacoemulsification in an Asian population. SETTING: Singapore National Eye Center, Singapore. METHODS: In this prospective, randomized, double-masked clinical trial, patients having cataract surgery were randomized to receive ECCE (n = 16) or phacoemulsification (n = 18). Diabetics were excluded. Two surgeons performed both types of surgery and implanted a 6.0 mm optic intraocular lens. Inflammation was assessed qualitatively by slitlamp grading of cells and flare and quantitatively using the Kowa flare meter. One independent postoperative investigator performed the slitlamp examination and laser flare meter readings. RESULTS: The ECCE and phacoemulsification groups were comparable (P > .05) in age, sex, ethnicity, and preoperative flare levels. The combined slitlamp inflammatory scores (anterior chamber cells and flare) and mean laser flare meter readings showed the ECCE group had significantly higher mean flare measurements than the phacoemulsification group at days 4 (P = .0012), 8 (P = .0013), 15 (P = .0013), 30 (P = .0004), and 60 (P = .0164). Flare levels in the ECCE group returned to preoperative values by the second month; the phacoemulsification group achieved preoperative levels by 1 month. The clinical inflammatory assessment score correlated closely to the flare level readings. CONCLUSION: Phacoemulsification induced less inflammation than ECCE, with the difference most marked in the first month after surgery.

Aged↗

PubMed1985

Peripheral corneal edema after cataract extraction.

Twenty-six eyes in 16 patients with aphakic peripheral corneal edema showed most of the signs described in 1969 by Brown and McLean in a syndrome they called "peripheral corneal edema after cataract extraction," consisting mainly of aphakia, marginal corneal edema, and discrete orange punctate pigmentation of the endothelial surface of the edematous areas. The syndrome was observed in 21 eyes after intracapsular cataract extraction, in three eyes after extracapsular surgery, and in two eyes with spontaneous absorption of the lens. In one case the spontaneous absorption of the lens was attributable to trauma, and in the other it was seen in association with congenital rubella syndrome. There was a high incidence of myopia (61%) in the affected eyes in this series.

Adult↗