Children with congenital and childhood cataract require frequent follow-up visits and examinations in general anaesthesia: considerations for the strain on families

School performances in children with cataract: results from a population-based cohort study

OBJECTIVES

Childhood cataract is a chronic condition that may interfere with the child's learning capacities. We aimed to investigate whether childhood cataract influences academic development by comparing school performance in reading and mathematics in children with cataract to a matched control group.

DESIGN

Nationwide registry-based cohort study.

SETTINGS

Two surgical centres that perform all treatments for childhood cataract in Denmark.

PARTICIPANTS

Children born between 2000 and 2009 diagnosed with cataract before 10 years of age (n=275) and an age-matched and sex-matched control group (n=2473).

MAIN OUTCOME MEASURES

School performance was assessed as test scores in national tests performed at regular intervals from grade 2 to grade 8 in reading and mathematics. Analyses were corrected for birth origin, child somatic and mental disorder and parental socioeconomic status and mental disorders.

RESULTS

Of 275 children, 85 (30.9%) were operated for bilateral cataract, 79 (28.7%) unilateral cataract and 111 (40,4%) were not operated. We found that children with cataract have lower participation rate in the tests (62.5%) compared with the control cohort (77.2%) (p value=0.0001). After adjusting the pooled analyses for birth origin, somatic and mental disease in the child and parental socioeconomic status and mental disorders, we found that the children with cataract scored significantly lower in mathematics compared with those without cataract (mean difference=-4.78, 95% CI: -8.18 to -1.38, p value=0.006), whereas no difference was found regarding scores in reading (p=0.576). The lower score in mathematics was driven by children who had been operated for bilateral cataract (p-value=0.004).

CONCLUSION

Children with cataract without somatic or neurodevelopmental comorbidities or psychosocial adversities seem to do well in school, whereas children operated for bilateral cataract have higher frequencies of difficulties in mathematical tasks.

Support needs around the time of diagnosis of parents caring for an infant with visual impairment or blindness in Denmark: a qualitative study

OBJECTIVE

The whole family is affected when an infant is diagnosed with visual impairment or blindness. We aimed to describe the support needs of parents around the time of diagnosis.

DESIGN

We used a descriptive qualitative method based on the theory of critical psychology and conducted five semistructured interviews with a total of eight parents of children under the age of 2 years who had been diagnosed with blindness or visual impairment before the age of 1 year. Thematic analysis was used to extract primary themes.

SETTING

The study was initiated by a tertiary hospital centre specialised in the ophthalmic management of children and adults with visual impairment.

PARTICIPANTS

Eight parents representing five families caring for a child under the age of 2 years with visual impairment or blindness participated in the study. The parents were recruited from the Department of Ophthalmology at Rigshospitalet, Denmark in relation to appointments in the clinic or by phone or email.

RESULTS

We identified three themes: (1) recognition and reactions during the time of diagnosis; (2) family, network and struggles; and (3) interaction with healthcare professionals.

CONCLUSION

The main lesson for healthcare professionals is to bring hope at a time when all hope may seem to be lost. Second, a need to direct attention to families with no or sparse supportive networks. Third, coordinating appointments between hospital departments and at-home therapies and reducing the number of appointments to allow parents time to establish a family relation with their child. Parents respond well to competent healthcare professionals who keep them informed and who see their child as an individual rather than as a diagnosis.

Epidemiology of ectopia lentis and outcomes after surgery in a Danish population

PURPOSE

To describe the causes of ectopia lentis (EL) and the outcomes after surgery in a Danish population.

SETTING

The Eye Clinic Rigshospitalet and Kennedy Center in Copenhagen.

DESIGN

Retrospective cohort study.

METHODS

Medical records of patients with nontraumatic EL born after 1980 and seen at the Eye Clinic Rigshospitalet and Kennedy Center from 1983 to 2019 were reviewed. Clinical information regarding family history, comorbidities, genetic workup, ophthalmological examinations, and surgical history was retrieved.

RESULTS

72 patients (38 males), of whom 68 had bilateral EL (94.4%) were identified. Marfan syndrome (MFS) was found in 34 (47.2%) and biallelic variants in ADAMTSL4 in 4 (5.6%). Surgery was performed in 38 (52.8%) patients, 66 eyes, with a median age at the time of first eye surgery of 8.4 years (range 0.8 to 39.0 years) and a follow-up of 2.3 years (range 0 to 25.7 years). Intraocular lenses were implanted in 9 (23.7%) (11 eyes). Corrected distance visual acuity improved from 0.7 to 0.2 logMAR (median) in right eyes and from 0.7 to 0.3 logMAR in left eyes postoperatively. 21 patients (56.8%), 42 eyes, did not experience any surgery-related complications. 3 patients (3 eyes) experienced a perioperative tear in the posterior capsule. Temporary postoperative ocular hypertension was reported in 3 patients (7.9%) (3 eyes), and 2 patients (5.4%) (2 eyes) developed persistent ocular hypertension. There were no cases of postoperative retinal detachment.

CONCLUSIONS

The main reason for EL was MFS. Surgery improved visual acuity, and postoperative ocular hypertension was the most common complication, whereas retinal detachment was not observed.

Biometry and corneal aberrations after cataract surgery in childhood

Background

To report long‐term biometric and refractive outcomes in a group of Danish children after surgery for childhood cataract.

Methods

Children between 7 and 18 years who had undergone uni‐ or bilateral cataract surgery at the Department of Ophthalmology, Rigshospitalet, Denmark, were examined in this cross‐sectional study. Swept source optical coherence tomography (OCT) based optical biometry (IOLmaster 700) and anterior tomography (Pentacam) was performed. Healthy fellow eyes from those with unilateral cataract were used as controls.

Results

We included 56 children in the study with a median age at surgery of 43.8 months (1.6–137.6). The amount of higher order aberrations was significantly increased in operated eyes (median root mean square 0.461 μm [range 0.264–1.484]) compared with non‐operated eyes (median root mean square 0.337 μm [range 0.162–0.498], p < 0.001). Younger age at surgery was positively associated with more higher order aberrations at follow‐up (p < 0.001), but we found no significant associations between the amount of higher order aberrations and visual acuity or contrast vision. Longer axial length was associated to glaucoma while shorter axial length was associated to strabismus (p < 0.001).

Conclusions

Eyes operated for childhood cataract have higher order aberrations compared with non‐operated eyes. Higher order aberrations are complex refractive errors that cannot be corrected by normal lenses and may contribute to poor visual outcomes for the children. We found an association between young age at surgery and higher order aberrations.

Increased Incidence of Mental Disorders in Children with Cataract: Findings from a Population-based Study

PURPOSE

To examine the incidence of mental disorders in children with cataract compared with children without cataract.

DESIGN

Nationwide cohort study based on entries in comprehensive national databases.

METHODS

The incidence of mental disorders in children born between 2000 and 2017 diagnosed with cataract before 10 years of age (n = 485) was compared with sex- and age-matched controls (n = 4358). Analyses were corrected to somatic disease in the child and parental socioeconomic status and psychiatric morbidity. The study was conducted as 2 university hospitals in Denmark managing children 6 years of age our younger with cataract.

RESULTS

The incidence of mental disorders was nearly doubled in children with cataract compared with controls (odds ratio [OR], 1.83; 95% CI, 1.28-3.63). The risk of anxiety disorders was quadrupled (OR, 4.10; 95% CI, 1.90-8.84) and the risk of developmental delay was doubled (OR, 2.66; 95% CI, 1.45-4.90). The risk of mental disorders was significantly higher in children diagnosed with cataract in the first 3 years of life compared with controls (OR, 2.36; 95% CI, 1.53-3.64), whereas those diagnosed with cataract later in childhood did not have an increased risk (OR, 1.24; 95% CI, 0.66-2.30).

CONCLUSIONS

The risk of mental disorders, in particular anxiety and neurodevelopmental delay, is markedly increased in children with cataract and even more so in those diagnosed within the first 3 years of life. Psychiatric screening instruments may be integrated in the management of these children.

Socio-economic status in families affected by childhood cataract

PURPOSE

To investigate the socio-economic status of families affected by childhood cataract and to assess how the socio-economic status is affected by cataract diagnosis.

MATERIALS AND METHODS

Children born between 2000 and 2017, seen between the age 0 and 10 years in the same period at Rigshospitalet or Aarhus University Hospital for cataract (N = 485), were included and compared to a matched children group without cataract (N = 4358). Socio-economic status was evaluated by the parents' income, employment, education, marital status and family structure.

RESULTS

Parents of children with cataract were more likely to have a low yearly income (OR = 1.60, 95% CI (1.12-2.27)), be out of work (OR = 1.74, 95% CI (1.34-2.26)) and have basic education as the highest attained education (OR = 1.64, 95% CI (1.27-2.13)) prior to diagnosis. This social gradient was not affected by the diagnosis. In addition, a higher number of children with cataract lived in multi-family residencies (13.8% versus 8% in group of children without cataract) and they had a greater number of siblings (6.2% had ≥4 siblings versus 2.1% in group of children without cataract).

CONCLUSION

Families affected by childhood cataract have a lower socio-economic status and educational background even before cataract is diagnosed but the diagnosis does not aggravate the differences between these families and the background population. The lower socio-economic status and parental educational background should be taken into consideration in the management of these families.

Swedish Parents' Experiences and Their Need for Support When Having a Child with Congenital Cataract: A Qualitative Study

PURPOSE

To explore parents' experiences of living with a child with congenital cataract, with the intention of identifying how to improve the parental support.

DESIGN AND METHOD

A qualitative descriptive design using semi-structured interviews. The parents were interviewed when the children were aged 12-24 months. All children were operated on for congenital cataract before three months of age. The interviews were transcribed and analysed using qualitative content analysis with an inductive approach. Findings were reported following the Standard for Reporting Qualitative Research (SRQR) checklist.

RESULTS

Three categories emerged from the data: trying to survive during a chaotic time; adapting to a different normal; being in need of support. When receiving the preliminary diagnosis, most of the parents were upset but managed well once the initial shock had subsided. However, some described feelings of despair, difficulties in accepting the situation and in connecting with the child. All parents stated that, to be valuable, a counsellor needed to have insights in how the eye works and the function of visual development.

CONCLUSION

The parents' need for psychosocial support in the early post-diagnostic stage varied greatly. Early identification of those in need of specialized counselling is therefore of importance, preferably at the maternity ward or by the regional ophthalmologist when the referral is made.

CLINICAL IMPLICATIONS

The study provides understanding of the importance to take the parents' well-being beyond the medical issues into consideration. This knowledge can be used to provide support at an earlier stage in the treatment programme than is currently the case.

Ultrasound biomicroscopy for the assessment of postoperative complications after congenital cataract surgery

Background

The aim of the present study was to investigate the role of ultrasound biomicroscopy (UBM) in the evaluation of postoperative complications in children with congenital cataracts.

Methods

A retrospective study was conducted between September 2012 and December 2016 at Guangzhou Women and Children's Medical Center. Red reflex test and high-resolution bag/balloon UBM were performed to evaluate postoperative congenital cataracts. The red reflex test results were recorded, and UBM imaging results were recorded and analyzed. Different postoperative complications were classified based on the UBM imaging features, and a second procedure was performed accordingly. The UBM images were compared with the images captured from the intraoperative videos.

Results

In total, we looked at 120 eyes in 96 patients (65 males and 31 females) in the present study. The age of the cohort was 3-76 months. A total of 51 eyes with poor red reflex were included. There were complications in 46 eyes after congenital cataract surgery, as detected by UBM, including posterior capsular opacification (n=29 eyes), pupil block (n=8 eyes), synechia (n=5 eyes), hyphema (n=1 eye), and abnormal intraocular lens (IOL) placement (n=3 eyes). UBM images showed specific features of postoperative complications.

Conclusions

UBM is a valuable tool for the early evaluation of postoperative complications of congenital cataracts, especially for those with media opacities or when pupil dilation is not possible.

Molecular genetics of congenital cataracts

Congenital cataracts, the most common cause of visual impairment and blindness in children worldwide, have diverse etiologies. According to statistics analysis, about one quarter of congenital cataracts caused by genetic defects. Various mutations of more than one hundred genes have been identified in hereditary cataracts so far. In this review, we briefly summarize recent developments about the genetics, molecular mechanisms, and treatments of congenital cataracts. The studies of these pathogenic mutations and molecular genetics is making it possible for us to comprehend the underlying mechanisms of cataractogenesis and providing new insights into the preventive, diagnostic and therapeutic approaches of cataracts.