Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “CATARACT”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

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

At least 865 records · Page 48Linked to original sources
PubMedDate not supplied

[Definition of the term "complicated cataracts"].

Cataracts with different risk factors differ in their clinical course. Surgical removal of such cataracts requires a differentiated approach to drug therapy in the pre- and postoperative periods. On the other hand, surgery, for example, for uveal cataracts involves additional manipulations, dissection of synechias or more coarse adhesions. The risk of inflammations in the immediate postoperative period and of secondary cataracts in remote periods is high in diabetics with uveal cataracts. Analysis of published data and our own clinical findings permitted us to make the existing classifications of complicated cataracts more accurate. We consider that the term "complicated cataracts" should not be changed. This patient population includes those for which the factors of risk of cataracts are uveitis, myopia, glaucoma, diabetes mellitus, and other diseases causing changes in ocular structures, which, in turn, become a risk factor in terms of development of complications during and after cataract extraction.

Cataract↗
PubMed1997

[Cataracts occur in patients with atopic dermatitis when the serum IgE increases].

The serum-IgE (sIgE) levels of eight patients with cataract complicated by atopic dermatitis (atopic cataract) who had undergone cataract surgery were reported. Five of them were diagnosed as having cataract the first visit to our eye clinic. The other three cases did not show cataract at the first visit but developed it later. The average sIgE of the five cases with cataract was 25,478 +/- 15,936 (mean +/- standard deviation) iu/ml whereas that of the latter three cases without cataract, at the first visit was 4,638 +/- 1,810 iu/ml. The average sIgE of these three cases when their cataracts were diagnosed first went up to 13,210 +/- 5,574 iu/ml. These results suggested that a high level of sIgE may be a warning of the appearance of atopic cataract.

Adolescent↗
PubMed1997

Practices associated with cataract surgery in Canada: results of a national survey.

OBJECTIVE: To examine Canadian ophthalmologists' reported practices related to cataract surgery. DESIGN: Mailed questionnaire survey. SETTING: Canada. PARTICIPANTS: Random sample of 698 ophthalmologists from the mailing list of the Canadian Ophthalmological Society. Of the 528 eligible ophthalmologists 353 completed the questionnaire (response rate 67%). A total of 276 respondents were classified as cataract surgeons (performed at least one cataract operation in the preceding year [1992]) and were included in the study. OUTCOME MEASURES: Reported use of preoperative ophthalmic tests, surgical technique, cataract anesthesia (including type of block and who administers it) and postoperative care. RESULTS: Most of the preoperative tests examined either were so routine as to be done in almost all cases or were rarely done at all. A total of 52% of the respondents were identified as predominantly extracapsular cataract extraction surgeons (ECCE), 46% as predominantly phacoemulsification surgeons and 2% as predominantly intracapsular cataract extraction surgeons. Overall, 57% of the respondents reported high use of retrobulbar anesthesia, 18% reported high use of peribulbar anesthesia, and 0.7% reported high use of general anesthesia. The mean number of postoperative visits in the first 4 months after surgery was 4.25. The mean rate of Nd:YAG laser capsulotomy in the first year after cataract surgery was 17.9%; 91% of the respondents reported a rate less than 40%. CONCLUSIONS: There seems to be limited use of nonessential preoperative ocular testing by Canadian cataract surgeons. Although ECCE remains the most common type of surgery performed, there appears to be a substantial number of surgeons trying phacoemulsification, and this will likely become the predominant technique in the near future. The self-reported practices of Canadian surgeons with relation to preoperative testing and postoperative follow-up appear to be consistent with the Clinical Practice Guideline for cataract surgery set by the US Agency for Health Care Policy and Research. However, variations in the number of postoperative visits and Nd:YAG capsulotomy rates merit further investigation.

Anesthesia, Local↗
PubMed1998

Decrease in vitamin C concentration in human lenses during cataract progression.

Cataract formation is believed to result from an oxidative insult which decreases the antioxidant defense of the lens, particularly the vitamin C concentration. Upon oxidation, vitamin C contributes with glucose to protein glycation. It also favours tryptophan oxidation, resulting in fluorescent peptide cross-links and protein insolubilisation. The relationship between cataract and lenticular vitamin C was analysed in 48 cataractous lens nuclei classified into four severity grades, considering the sum of the colour and opacity. Ascorbic and dehydroascorbic acids were quantified by HPLC-fluorescence. The Amadori product was measured by means of furosine, advanced glycation end products by their fluorescence and tryptophan concentration by HPLC-UV. The lens vitamin C concentration significantly decreased with cataract severity, but mostly in severe brown cataracts (around 88 mumol/100 g lens in mild cataracts, and 50 mumol/100 g in dark brown lenses). The dehydroascorbic acid concentration was always low and stable (1.9 +/- 0.9 mumol/100 g), as was the furosine concentration (0.4 +/- 0.1 mumol/g). The fluorescence of insoluble advanced glycated end products was significantly higher in severe cataracts than in milder ones. The peptide tryptophan content was stable but the tryptophan to tyrosine ratio decreased and was highly correlated to the ascorbic acid concentration. Vitamin C content appears to be a good indicator of cataract severity, suggesting that oxidation could take part in cataract progression.

Ascorbic Acid↗
PubMed1995

Cataract extraction in adults with retinopathy of prematurity.

OBJECTIVE: To review the results of lensectomies performed to remove visually significant cataracts in adults with regressed retinopathy of prematurity, with special reference to postoperative vision and retinal complications. METHODS: A chart review of consecutive cases of cataract extraction in eyes with visually significant lens opacities and regressed retinopathy of prematurity was conducted. RESULTS: Fourteen consecutive eyes with retinopathy of prematurity in 10 adult patients were identified as having undergone lensectomy to manage a visually significant cataract. These cataract extractions were performed between June 1970 and February 1993. There were eight women and two men aged 16 to 43 years at the time of lensectomy. A variety of lenticular opacities were noted, the most common of which was nuclear sclerosis. Additionally, the nuclei were frequently much harder than would be expected for the patient's age. Phacoemulsification with implantation of a posterior chamber intraocular lens was the most common technique for cataract extraction. Eight eyes experienced improvement in visual acuity. However, when preoperative visual acuity was less than 20/200, postoperative acuity of 20/60 or better was uncommon. Six eyes were being treated for glaucoma before lensectomy. Glaucoma control was facilitated after lensectomy in six eyes. No combined cataract extraction and filtering procedures were performed. One eye developed a rhegmatogenous retinal detachment 76 months after cataract extraction. The retina was successfully reattached, but the eye suffered a substantial decrease in visual acuity. CONCLUSION: Cataract extraction in adult patients with retinopathy of prematurity may improve visual acuity, facilitate examination and treatment of the posterior segment, and aid in the management of glaucoma. The risk of retinal complications in these patients does not appear to be excessive.

Adolescent↗
PubMed1996

The association of postoperative subjective visual function with acuity, glare, and contrast sensitivity in patients with early cataract.

BACKGROUND: It has been shown in our previous studies that early cataracts affect vision in ways that can be measured by objective means and that this objective impairment in visual acuity, glare, and contrast sensitivity can be successfully reversed by cataract surgery. OBJECTIVE: To evaluate the association of subjective visual function with objective measures of acuity, glare, and contrast sensitivity in patients who were symptomatic from early cataract. METHODS: We administered a task-oriented questionnaire prior to and 4 months after cataract surgery to patients who were symptomatic from early cataract (median preoperative ETDRS [Early Treatment Diabetic Retinopathy Study] visual acuity of 20/40 [range, 20/20 to 20/80]); ETDRS visual acuity, disability glare, and contrast sensitivity were also measured at those times. RESULTS: Uncomplicated cataract surgery resulted in resolution or improvement of subjective symptoms for the great majority of subjects, and in a few subjects new symptoms developed or current symptoms worsened. We found a positive association between postoperative improvement in subjective visual function (as measured by the questionnaire) and postoperative improvement in objective visual function (as measured by visual acuity and contrast sensitivity). We also found that the greater the degree of preoperative impairment in objective visual function (as measured by visual acuity and contrast sensitivity), the greater the postoperative improvement in subjective visual function (as measured by the questionnaire). No such association was found for our disability glare test. CONCLUSIONS: Cataract surgery for symptomatic individuals with mild impairment in visual acuity does relieve visual symptoms, and preoperative measurement of contrast sensitivity can help determine who with early cataract is most likely to report subjective improvement in vision.

Adult↗
PubMed2001

Surgical interventions for bilateral congenital cataract.

BACKGROUND: Congenital cataracts are opacities of the lens in one or both eyes of children, causing a reduction in vision bad enough to require surgery. Cataract is the largest preventable cause of visual loss in childhood. Paediatric cataracts provide different challenges to those in adults. Intense inflammation, amblyopia and posterior capsule opacification can affect results of treatment. Two treatments commonly considered for congenital cataract are lensectomy and lens aspiration. OBJECTIVES: The objective of this review is to assess the effects of surgical treatments for bilateral symmetrical congenital cataracts. Success is measured according to the vision attained and occurrence of adverse events. SEARCH STRATEGY: We searched the Cochrane Controlled Trials Register - CENTRAL (which includes the Cochrane Eyes and Vision Group specialised register), MEDLINE, EMBASE, the Science Citation Index and the reference list of the included study. We also contacted trial investigators and experts in the field for details of further studies. SELECTION CRITERIA: We included all prospective, randomised controlled trials that compared one type of cataract surgery to another or to no surgery, in children aged 15 years or younger with bilateral congenital cataracts. DATA COLLECTION AND ANALYSIS: Two reviewers extracted data. No meta-analysis was performed. MAIN RESULTS: One trial met the inclusion criteria. This trial randomised 130 eyes of 65 children. Follow up of 56 children at three years found no difference in visual acuity between lensectomy and lens aspiration with primary capsulotomy. Secondary opacification developed at a higher rate in the lens aspiration group (66%) compared to the lensectomy group (2%). REVIEWER'S CONCLUSIONS: The two methods of surgery for bilateral congenital cataracts in this review have good visual results but the incidences of side effects differ. Further randomised trials are required to inform modern practice.

Cataract↗
PubMed2006

Surgical interventions for bilateral congenital cataract.

BACKGROUND: Congenital cataracts are opacities of the lens in one or both eyes of children that cause a reduction in vision severe enough to require surgery. Cataract is the largest treatable cause of visual loss in childhood. Paediatric cataracts provide different challenges to those in adults. Intense inflammation, amblyopia and posterior capsule opacification can affect results of treatment. Two treatments commonly considered for congenital cataract are lensectomy and lens aspiration. OBJECTIVES: The objective of this review was to assess the effects of surgical treatments for bilateral symmetrical congenital cataracts. Success was measured according to the vision attained and occurrence of adverse events. SEARCH STRATEGY: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) on The Cochrane Library, which contains the Cochrane Eyes and Vision Group Trials Register (2005, Issue 2), MEDLINE (1966 to June 2005), EMBASE (1980 to June 2005, week 27), LILACS (6 July 2005), the Science Citation Index and the reference list of the included studies. We also contacted trial investigators and experts in the field for details of further studies. SELECTION CRITERIA: We included all prospective, randomised controlled trials that compared one type of cataract surgery to another, or to no surgery, in children with bilateral congenital cataracts aged 15 years or younger. DATA COLLECTION AND ANALYSIS: Two authors extracted data. No meta-analysis was performed. MAIN RESULTS: Four trials met the inclusion criteria. All trials were concerned with reducing the development of visual axis opacification (VAO). This was achieved with techniques that included an anterior vitrectomy or optic capture. Posterior capsulotomy alone was inadequate except in older children. AUTHORS' CONCLUSIONS: Evidence exists for the care of children with congenital or developmental bilateral cataracts to reduce the occurrence of visual axis opacification. Further randomised trials are required to inform modern practice about other concerns including the timing of surgery, age for implantation of an intraocular lens and development of long-term complications such as glaucoma and retinal detachment.

Cataract↗
PubMedDate not supplied

Preoperative testing practice in healthy cataract surgery patients. Results of a survey of ophthalmologists in Barcelona, Spain. Barcelona I-PORT Investigators.

AIMS/BACKGROUND: Many preoperative ophthalmic and medical tests lack proven effectiveness in the evaluation of cataract surgery patients. Variation in use has been described in the USA, but little information is available for countries with different health systems. The objectives of the study were to assess variation in ophthalmologists' use of preoperative testing on cataract surgery patients and to identify ophthalmologists' characteristics associated with it. METHODS: A postal survey was made in a representative sample (response rate of 70%) of the Barcelona Medical Association of Ophthalmologists performing cataract surgery during 1993 (N = 89). The questionnaire included information about common preoperative, intraoperative and postoperative practice and sociodemographic and professional data. Appropriateness of preoperative ophthalmic tests was classified in 3 levels (indicated tests, tests with unproven benefit, and non-indicated tests) according to recommendations of the Cataract Management Guideline Panel [1] and the American Academy of Ophthalmology Preferred Practice Pattern [2]. RESULTS: Almost all the ophthalmologists reported performing Fundus exam plus A-scan in the preoperative evaluation of cataract surgery patients (indicated tests). Up to 20% reported performing 'frequently' or 'always' some non-indicated or unproven benefit ophthalmic tests. Additionally, an average of 7 medical tests were 'routinely' included. Private practice and cataract subspeciality were the ophthalmologists' characteristics more frequently associated with the use of inappropriate ophthalmic tests (p < 0.05). CONCLUSIONS: In Barcelona, Spain, some ophthalmic tests of unproven effectiveness are frequently performed preoperatively on cataract surgery patients without ocular comorbidity. Also, a generalized utilization of several medical tests was reported. There is potential for some cost containment and more appropriate care of cataract patients without diminishing the quality of care, in a location with low surgery rates.

Adult↗
PubMed2004

[Systemic diagnostic error of senile dementia by cataract-related impairment of information processing?].

PURPOSE: According to several investigations, late-acquired diagnostically unspecified visual impairments lead to reduced intelligence levels. In cataracts, in particular, we measured reductions in IQ prior to IOL implantation. QUESTION: Do cataract-related IQ impairments reach the level of senile dementia? OBJECTIVE: To examine if cataracts and their removal have a particular relevance in senile dementia. METHODS: The IQ reduction measured in cataract samples in four studies are compared with normal values of dementia. In addition, research of the literature on diagnostic problems. RESULTS: Compared with the post-surgical score the IQ was much lower before IOL implantation. The difference corresponds to that of dementia with moderate to medium severity. Controls, however, displayed no change of IQ. According to ICD-10 and DSM-IV the cataract patients met the criteria of senile dementia. A review of the literature suggested statistical associations of prevalence of cataract and senile dementia, but did not deal with diagnostic problems. CONCLUSIONS: One component of the psychometrically obtained cognitive impairment in late-acquired cataracts seems to be a methodical artifact. The remaining component, however, cannot be distinguished from that of a "senile dementia" and leads to an increase in severity. In this case, cataract surgery may lower or even abolish the symptoms of dementia within a few weeks which would be of great importance to the patients, their relatives and health insurance.

Aged↗
PubMed1998

[Capsular sack-fixed IOL implantation in pediatric cataract. Visual prognosis and complications].

BACKGROUND: The aim of the study was to evaluate results of visual acuity and binocularity and complications after cataract surgery with primary capsular bag-fixated IOL implantation in children. MATERIALS AND METHODS: Thirty-three children [mean age (+/- SEM) 6.9 +/- 2.9 years, range 3-12 years] accounting for 43 eyes, were examined before and after surgery (15 traumatic, 19 developmental, and 9 congenital cataracts, of the latter two groups 9 unilateral and 19 bilateral cataracts). RESULTS: All eyes had a best corrected postoperative visual acuity of 0.5 +/- 0.05. The postoperative visual acuity of the traumatic cataracts was 0.6 +/- 0.07, of the developmental cataracts 0.5 +/- 0.07, and of the congenital cataracts 0.2 +/- 0.05. Of the 43 eyes, 17 (40%) showed a best corrected visual acuity of 0.5 or better. There was a positive correlation between morphology (lamellar versus subcapsular opacification) and visual acuity (0.7 +/- 0.07 versus 0.5 +/- 0.05; P < 0.05). Bilateral cataracts had a better postoperative visual acuity than unilateral cataracts (0.7 +/- 0.07 versus 0.2 +/- 0.05 P< 0.001) Stereopis was found postoperatively in 62% of the children. In one eye a capsular bag-fixated IOL implantation was not possible, and so the IOL was inserted in the sulcus. Four children presented with postoperative fibrin formation. Posterior capsule opacification occurred in 19% of the eyes in which a primary posterior capsulotomy had been performed. CONCLUSIONS: The prognosis of visual acuity and the results of stereopsis in children older than 3 years following capsular bag-fixated IOL implantation are very good. Both the intraoperative and postoperative complication rates were low.

Cataract↗
PubMed2001

Pars plana lentectomy for treatment of congenital cataract.

BACKGROUND: Congenital cataract surgery can be performed using a pars plicata/plana or a limbal approach, if placement of an intraocular lens at the time of cataract removal is not a consideration. Because of the high incidence of secondary cataract formation in children the operation should be combined with capsulotomy and anterior vitrectomy. METHODS: The series consisted of 30 eyes from 20 consecutive children who suffered from congenital cataract and underwent cataract surgery between May 1995 and June 2000. The inclusion criterion was congenital cataract affecting the visual axis. We performed the operations as lens aspiration with anterior and posterior capsulotomy and anterior vitrectomy via the pars plana or plicata. We used contact lenses to rehabilitate vision. All patients received intensive orthoptic and pleoptic treatment. RESULTS: This surgical technique provided in all eyes a clear visual axis. During follow-up of 3 months to 4.5 years, secondary cataract developed in five eyes. Retinal detachment, glaucoma and endophthalmitis did not occur. One patient developed contact lens intolerance and a secondary intraocular lens was placed in the ciliary sulcus. DISCUSSION: Lentectomy via a pars plana or pars plicata approach is a suitable and safe method for treating cataract in children. Our chosen method of lentectomy is an alternative to early implantation of an intraocular lens. It is possible to perform uncomplicated secondary implantation of an intraocular lens in the ciliary sulcus.

Aphakia, Postcataract↗
PubMed2006

Is there a latent period for the surgical treatment of children with dense bilateral congenital cataracts?

BACKGROUND: It generally is accepted that cataract surgery during the first 6 weeks of life is associated with the best visual outcomes for children with dense unilateral congenital cataracts. The latent period for children with dense bilateral congenital cataracts has not been clearly defined. METHODS: The best-corrected visual acuity (BCVA) at 4 to 6 years of age was collected retrospectively on a series of 43 children with dense bilateral congenital cataracts from 4 institutions. All of the children underwent a lensectomy, posterior capsulotomy, and anterior vitrectomy at 36 weeks of age or younger. RESULTS: Cataract surgery was performed at a mean age of 11.5 weeks for the better-seeing eye. BCVA was assessed when the children were a mean of 5.3 years of age. The visual acuities of 26 (60%) were 20/40 or better, 12 (28%) were 20/50 to 20/80, and 5 (12%) were 20/100 or worse. There was a trend for worse BCVA with increasing age at the time of surgery (r = 0.28, P = 0.07). We noted that a BCVA of 20/100 or worse occurred only among eyes undergoing surgery when infants were older than 10 weeks ( 10 weeks: 5/22 = 23%, P = 0.049). Children with preoperative nystagmus had worse visual outcomes; only 38% of children with preoperative nystagmus achieved a BCVA of 20/40 or better compared with 74% of children without preoperative nystagmus (P = 0.03). CONCLUSION: Previous reports have proposed that cataract surgery during the first 5 to 8 weeks of life is associated with better visual outcomes in children with dense bilateral congenital cataracts. Our results would suggest that good visual outcomes can be achieved beyond this age, but the incidence of poor visual outcomes increases if cataract surgery is delayed beyond 10 weeks of age. The absence of preoperative nystagmus is a better predictor of a good visual outcome than the age at surgery.

Age Factors↗
PubMed2006

Angle widening and alteration of ciliary process configuration after cataract surgery for primary angle closure.

PURPOSE: To evaluate quantitatively, by means of ultrasound biomicroscopy (UBM), changes in the anterior segment configuration, including the ciliary processes, induced by cataract surgery in eyes with primary angle closure. DESIGN: Retrospective interventional case series. PARTICIPANTS: Thirty-one eyes of 31 patients with primary angle closure or primary angle-closure glaucoma were treated with cataract surgery. Before cataract surgery, 10 eyes had been treated with laser peripheral iridotomy, and 1 with laser peripheral iridoplasty. METHODS: Configuration of the anterior chamber was examined by means of UBM before and at 3 months after cataract surgery. MAIN OUTCOME MEASURES: Using UBM, anterior chamber depth (ACD), angle opening distance at points 500 mum from the scleral spur (AOD500), and trabecular-ciliary process distance (TCPD) were measured. RESULTS: Not only ACD and AOD500, but also TCPD, increased significantly after cataract surgery, compared with measurements obtained before surgery (P<0.001). Postoperative AOD500 was correlated significantly with postoperative TCPD (r = 0.72, P<0.001) and with the amount of change of TCPD caused by cataract surgery (Delta TCPD) (r = 0.52, P<0.01). CONCLUSIONS: Cataract surgery attenuated anterior positioning of the ciliary processes in eyes with primary angle closure, concomitant with significant widening of the angle. Cataract surgery resulted in not only complete dissolution of lens volume and pupillary block, but also attenuation of the anterior positioning of the ciliary processes, all of which contributed to postoperative widening of the angle in eyes with primary angle closure.

Aged↗
PubMed2006

Alcohol consumption and risk of cataract extraction: a prospective cohort study of women.

PURPOSE: To investigate the association between alcohol consumption and the risk of cataract extraction. DESIGN: Population-based prospective cohort study. PARTICIPANTS: A total of 34,713 women participating in the Swedish Mammography Cohort, age 49 to 83 years, completed in 1997 a self-administered questionnaire about alcohol, smoking, and other lifestyle factors. METHODS: The women were followed from September 1997 through September 2004. The cohort was matched with registers of cataract extraction from the study area. MAIN OUTCOME MEASURES: Incident surgical extraction of age-related cataract. RESULTS: During 84 months of follow-up, we found 3587 incident cases of age-related cataract extraction. Compared with never drinkers, the relative risk of cataract extraction among current drinkers was 1.11 (95% confidence interval [CI] 1.02-1.21) after adjustment for age and other potential risk factors. In multivariate analysis, an increment of 13 g alcohol intake per day (corresponding to 1 drink = 330 ml of beer, 150 ml of wine, or 45 ml of liquor) was associated with a 7% increased risk of cataract extraction (relative risk, 1.07; 95% CI 1.02-1.12). Mean age at cataract extraction among nonsmoking women who used alcohol was 75 years, compared with 77.6 years among never drinkers. CONCLUSIONS: These prospective data suggest that daily use of >/=1 alcoholic drinks was associated with a modest increase of risk for cataract extraction. The risk increased with increasing alcohol consumption.

Aged↗
PubMed2000

Ultrasound biomicroscopy of the anterior segment after congenital cataract surgery.

PURPOSE: To evaluate the structure of the anterior segment after congenital cataract surgery with ultrasound biomicroscopy. METHODS: Ultrasound biomicroscopy was performed on 28 eyes of 15 patients after congenital cataract surgery (age range, 8-27 years; mean, 13.1 +/- 1.1 years), of which 26 eyes had pars plana lensectomy and two eyes had phacoemulsification and aspiration, and on 21 eyes of 11 phakic control subjects who were healthy (age range, 6-17 years; mean, 11.5 +/- 1.1 years). The angle-opening distance at 500 microm was measured on a line perpendicular to the trabecular meshwork 500 microm from the scleral spur, and the trabecular-iris angle was measured. RESULTS: Angle-opening distance at 500 microm in the congenital cataract group ranged from 174 to 920 microm (mean, 424 +/- 28 microm), and in the control group it ranged from 260 to 1,119 microm (mean, 643 +/- 57 microm), a difference that was significantly different (P =.0004, Student t test). The trabecular-iris angle in the congenital cataract group ranged from 30.4 to 66.9 degrees (mean, 41.9 +/- 1.6 degrees) and in the control group ranged from 32.1 to 69.8 degrees (mean, 44.9 +/- 2.5 degrees), a difference that was not significantly different (P =.28, Student t test). This means that there is a tendency for high insertion of the iris in the congenital cataract group, and intraocular pressure was elevated after surgery (including glaucoma and ocular hypertension) in 10 (47.6%) of 21 eyes with high insertion. The pars plicata after congenital cataract surgery was significantly flatter than that of control subjects (P =.0057, Student t test). CONCLUSIONS: Ultrasound biomicroscopy is a useful method for evaluating the anterior segment of eyes with congenital cataract, and complications after cataract surgery can be caused by disorganization of the anterior segment. Patients with abnormalities of the anterior segment should be followed up closely for the development of glaucoma.

Adolescent↗
PubMed1992

Results of late surgery for presumed congenital cataracts.

We reviewed the results of cataract extraction and visual rehabilitation in 76 eyes of 47 infants and children with presumed congenital cataracts who were first seen after they were 10 months old. Eighteen patients underwent surgery for unilateral cataracts, including five patients with persistent hyperplastic vitreous, five with posterior lenticonus, one with a nuclear cataract, six with posterior subcapsular cataracts, and one with a lamellar cataract. Of these 18 patients, seven (39%) attained a visual acuity of 20/60 or better, one (6%) had a visual acuity of 20/100, and ten (60%) had a visual acuity of 20/200 or worse. Twenty-nine patients (62 eyes) underwent bilateral cataract extraction. The visual acuity could be measured in 22 patients (44 eyes). Visual acuity improved to 20/60 or better in 32 eyes (73%), was between 20/70 and 20/150 in 11 eyes (25%), and became worse than 20/200 in one eye (2%). Results were good in patients with persistent hyperplastic primary vitreous, posterior lenticonus, and bilateral cataracts.

Adolescent↗
PubMed2001

A population-based eye survey of older adults in a rural district of Rajasthan: II. Outcomes of cataract surgery.

PURPOSE: To assess the outcomes of cataract surgery in rural northwest India. DESIGN: Population-based, cross-sectional study. PARTICIPANTS: A total of 549 cataract-operated persons (723 operated eyes). METHODS: Cluster sampling was used in randomly selecting a cross-sectional sample of persons 50 years of age or older for visual acuity measurement, refraction, and slit-lamp and direct ophthalmoscope examination early in 1999. Those operated on for cataract were queried as to the date and place of surgery. The principal cause of reduced vision was identified for all examined eyes with presenting visual acuity worse than 6/18. MAIN OUTCOME MEASURES: Presenting and best-corrected visual acuity and cause of vision loss. RESULTS: Presenting visual acuity was less than 6/60 in the better eye in 33.7% of cataract-operated persons and greater than or equal to 6/18 in both eyes in 8.2%; 31.7% were bilaterally operated on. Of cataract-operated eyes, 44.1% initially had visual acuity less than 6/60 and 31.5% greater than or equal to 6/18; with best correction, the corresponding percentages were 14.0% and 61.5%. Intracapsular cataract extraction was used in 92% of cases, and 66% had been operated on in surgery camps. Surgical complications were common and a major cause of vision impairment. In multiple logistic regression modeling, female gender and residence in a rural area were associated negatively with both presenting and best-corrected visual acuity outcomes, and surgery conducted before 1990 was associated negatively with best-corrected visual acuity. Place of surgery and subject schooling were not associated with vision outcomes. CONCLUSIONS: Cataract surgery subjects in rural areas of India that are without adequately equipped facilities and skilled surgeons, and lack of availability of intraocular lenses, are not realizing the full sight-restoring potential of modern-day surgery. Emphasis on the quality of cataract surgery outcomes must be increased to keep pace with that being given to increasing surgical volume.

Aged↗