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Published on: November 12, 2015
Understanding Keratoconus in Down Syndrome: From Etiology to Management - A Narrative Review
Venugopal Anitha1, Nambi Nallasamy2, Josephine S Christy3
1Department of Cornea & Refractive Services, Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Tirunelveli, TN, India.
Insights
Children with Down syndrome (DS) have a higher risk of keratoconus (KC). Early detection and intervention with corneal cross-linking (CXL) are crucial for preventing vision loss in these children.
Area of Science:
- Ophthalmology
- Genetics
- Pediatrics
Background:
- Down syndrome (DS) is associated with a significantly higher prevalence of keratoconus (KC) compared to the general population.
- Early identification and management of ocular comorbidities in children with DS are critical for preventing vision impairment.
- Understanding KC in DS is essential for timely diagnosis and effective treatment strategies.
Purpose of the Study:
- To review the current knowledge on keratoconus (KC) in individuals with Down syndrome (DS).
- To discuss the epidemiology, pathophysiology, diagnostic challenges, and management of KC in DS.
- To highlight the importance of early intervention and comprehensive care for preventing vision loss.
Main Methods:
- This is a review article summarizing existing literature on KC in DS.
- Information was gathered on epidemiological data, underlying mechanisms, diagnostic difficulties, and treatment options.
- The review synthesizes current understanding and clinical recommendations.
Main Results:
- Children with DS are born with thinner and steeper corneas, complicating KC diagnosis and management.
- Diagnostic challenges include poor patient cooperation, compromised imaging quality, and the need for sedation.
- Corneal cross-linking (CXL) is effective in halting disease progression, while surgery carries higher risks in DS patients.
Conclusions:
- Managing KC in DS requires a multidisciplinary approach, including pediatrician awareness, early ophthalmological referral, and prompt CXL intervention.
- Standardized screening protocols and preclinical gene prediction are needed to improve outcomes.
- Timely management of KC in DS can prevent vision loss and enhance quality of life.
Abstract:
Paediatricians are often the first to identify children with DS and their awareness on associated ocular comorbidities, play a critical role in ensuring timely referral to general ophthalmologists for diagnosis and management. Among these, keratoconus (KC) has a significantly higher prevalence among Down syndrome (DS) compared to the general population. The awareness and understanding of KC, is essential for preventing vision loss. This review summarizes the current understanding of KC in DS, on epidemiology, pathophysiology, diagnostic challenges, and management. The children with DS, have thinner and steeper corneas since birth, complicates the diagnostic and management protocols. Poor cooperation of the children for imaging, compromised scan qualities, need for sedation and repeatability of scans poses diagnostic challenges. Early intervention with corneal cross-linking (CXL) is shown to be effective in halting disease progression. The surgical options in advanced cases, carry higher risks in DS patients due to factors such as eye rubbing, increased infection rates, and challenges in postoperative compliance. Managing KC in DS requires a comprehensive approach involving early referral by Paediatricians, pre-emptive diagnosis, and timely intervention with CXL to prevent disease progression. Future research should focus on preclinical gene prediction and developing standardized screening protocols for KC among DS to prevent vision loss and thereby improve quality of life among them.
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