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PubMed1982

The results of extracapsular cataract extraction with a Shearing posterior chamber lens implant 34 to 40 months after surgery.

A series of 300 consecutive extracapsular cataract extractions with a Shearing posterior chamber lens implant (plus 13 with a surgical complication necessitating another kind of lens implant or no implant) was evaluated 34 to 40 months after surgery, except for those who died before this time (21 patients) and those lost to follow-up (15 patients). Ninety-one percent of the 264 patients who were examined achieved 20/40 or better visual acuity. Ninety-one percent of the 300 patients (those examined plus those who died and those lost to follow-up according to their last recorded examination) achieved 20/40 or better visual acuity. This series was compared to a previously reported series of 300 consecutive intracapsular cataract extractions with a Binkhorst iris clip lens implant examined 34 to 40 months after surgery.

Aged↗
PubMedDate not supplied

Success rates of unilateral vs. bilateral cataract extraction in dogs.

Postoperative results of 113 unilateral and 77 bilateral extracapsular cataract extractions (EC-CEs) in dogs were evaluated retrospectively. Restoration or improvement of functional vision was achieved in 79.6% of the eyes in dogs with unilateral extraction and 85.7% of the eyes in dogs with bilateral extractions at weeks 4 to 6. Complications occurring 6 weeks to 9 months after lens extraction lessened the surgical success rate in both groups. Twenty-six percent of the dogs in which bilateral lens removal was performed suffered complications resulting in surgical failure in one eye. When using the criterion that one or both treated eyes had functional vision, a short-term success rate of 98.7% was found for bilateral extractions.

Animals↗
PubMed1995

[A preliminary report on extracapsular cataract extraction with intraocular lens implantation in children].

Extracapsular cataract extraction (ECCE) with posterior chamber intraocular lens (IOL) implantation was performed on 94 eyes of children who were followed up for 6 approximately 30 months. IOLs were inserted in all of these eyes successfully with anterior vitrectomy used in several cases with traumatic cataract. The postoperative managements were similar to those in adults, but their complications were severer obviously than those of adults. Uveitis was the main postoperative complication which was characterized by severer anterior chamber reaction, longer duration and easier to form posterior iris synechiae and develop posterior capsular opacity. The follow-up results showed that the unilateral recovery rate from blindness is 90.1%, and 49.4% of these patients' corrected visual acuities were below 0.4. Because of the controversy on IOL implantation in children, it is the authors opinion that it should be cautious to perform IOL implantation on children and such an operation is not advocated for children under 3 years old. Children with unilateral cataract should be managed by experienced doctors, and it is very important to follow up carefully, to correct refractive error and carry out amblyopia treatment.

Adolescent↗
PubMed2003

Subtenon's anesthesia in extracapsular cataract extraction.

To avoid sight threatening complications of retrobulbar and peribulbar blocks various new modalities of ophthalmic anesthesia have been developed. Subtenon's anesthesia has been found to be a safe and effective technique in phacoemulsification. This study aimed to see the efficacy of subtenon's block in extracapsular cataract extraction. Administration of the anesthetic agents was found to be comfortable in 137 (95.1%) patients. Surgical procedure was painless in 141 (98.0%) cases. Akinesia was satisfactory in 136 (94.5%) cases. Although minor events like chemosis and subconjunctival hemorrhage were seen in a significant number of patients but there was not a single case of major complication. Hence it is concluded that subtenon's anesthesia is a safe and efficient technique for ophthalmic anesthesia in extracapsular cataract extraction.

Analgesia↗
PubMed2002

Outbreak of Empedobacter brevis endophthalmitis after cataract extraction.

BACKGROUND: We present a series of patients who were operated upon on the same day by the same surgeon. All of those patients developed postoperative endophthalmitis due to Empedobacter brevis - a bacterium hitherto unknown in ophthalmologic literature. METHODS: Twelve patients were referred because of endophthalmitis after cataract extraction. The patients' files were studied and the intraoperative and postoperative outcome was analysed. RESULTS: Twelve patients (five male, seven female, mean age 75 years) presented 1-6 days after uncomplicated cataract extraction. Although some suffered from medical or ophthalmological diseases there was no association with the severity of the endophthalmitis. Eleven patients required vitrectomy, seven as primary procedure, one primary with extraction of the lens and three secondary after anterior chamber lavage and intravitreal antibiotics. In three cases vitrectomy had to be repeated together with extraction of the intraocular lens. There were two postoperative retinal detachments that required silicon oil and in one case an encircling band. Mean visual acuity rose from 0.02 to 0.47 by 9 months after operation. Empedobacter brevis was found in the anterior chamber and in the vitreous in all except one patient. CONCLUSION: In high-volume cataract surgery endemic endophthalmitis is always possible. Sources of infection may be anything from the lens to the sterilisation process, the latter being the primary suspect in our series. Prompt, adequate and (if necessary) aggressive treatment by vitreous surgery may lead to favourable results.

Aged↗
PubMed1993

A prospective study of aspirin use and cataract extraction in women.

We examined the association between aspirin use and the rates of cataract extraction during 8 years of follow-up in a large prospective study of women, the Nurses' Health Study. From 1980 to 1988, we documented 448 senile cataracts diagnosed and extracted during 434,680 person-years of follow-up. While we observed a modest positive association at the higher doses of aspirin use in the age-adjusted analyses, no association was found after accounting for other cataract risk factors (relative risk for > or = 20 years of use, 1.08; 95% confidence interval, 0.84 to 1.39). Among women who consumed seven or more tablets per week for 20 or more years, there was no suggestion of protection; if anything, a nonsignificantly elevated risk was observed (relative risk, 1.31; 95% confidence interval, 0.94 to 1.80). We observed no consistent difference in the relationship between aspirin use and cataract when assessed by age. Overall, we found no evidence to support the substantial reduction in risk of cataract among aspirin users as reported in several previous studies.

Age Factors↗
PubMed1990

[Comparison of the results of simultaneous trabeculectomy and cataract extraction with microscopic evaluation].

The dependence of hydrodynamics on the topography of trabeculectomy performed simultaneously with cataract extraction was checked in 35 eyes with cataract and glaucoma. The eye was opened by a three-surface incision with a broad scleral flap. The specimen were examined in a microscope. In 21 eyes the whole trabeculum together with Schlemm's canal were excised, in 12 eyes the anterior band. In the specimen from 2 eyes no elements of the trabeculum could be found. The dependence of the regulation of the IOP on the geography of the trabeculectomy was established. Accepting the filtering mechanism of the trabeculectomy one may assume that the applied method of incision promotes the formation of the outflow++ ways of the aqueous in a high percentage of cases.

Adult↗
PubMed1994

Increased prevalence of disciform macular degeneration after cataract extraction with implantation of an intraocular lens.

After cataract extraction with implantation of an intraocular lens the increased transmission of ultraviolet and blue light may accelerate the development of age-related macular degeneration by producing free radicals in the retina. The maculae of 82 randomly selected postmortem human pseudophakic eyes and 16 fellow phakic eyes were examined by light microscopy. The presence of a basal laminar deposit, hard and soft drusen, thickening and calcification of Bruch's membrane, geographic atrophy, subretinal neovascularisation, and disciform scars was assessed in a standardised way. An age-matched series of 126 postmortem phakic eyes was used as control group. There was no difference between the two groups, except for a higher prevalence of hard drusen (exact trend test, p = 0.038) and disciform scars for the pseudophakic eyes (Fisher's exact test, p = 0.007). There was no significant correlation between either age-related changes in the macula or disciform degeneration and the length of time between cataract surgery and death. No significant difference was found between pseudophakic eyes with or without ultraviolet filter. These findings do not confirm that disciform scar formation is caused by an increase in ultraviolet or blue light.

Age Distribution↗
PubMed1984

Lens cortex irrigation/aspiration in extracapsular cataract extraction.

There are many good methods of removing lens cortex during extracapsular cataract extraction in use today. Features of some of these are presented. Flow volume of irrigation solution and depth of the anterior chamber are discussed, and it is recommended that adequate flow volume be used to maintain a comfortably deep anterior chamber during irrigation and aspiration.

Anterior Chamber↗
PubMed1980

Trabeculectomy combined with cataract extraction: a follow-up study.

Fifty-nine eyes undergoing combined cataract extraction and trabeculectomy were studied. The follow-up period ranged from 6 months to 2 years. The visual outcome and postoperative control of intraocular pressure have been compared in chronic open-angle, chronic closed-angle, and secondary glaucoma. Good results were obtained in both primary open- and closed-angle glaucoma, but not in secondary glaucoma.

Adult↗