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Anisometropia and Refractive Status in Children with Bilateral Congenital Nasolacrimal Duct Obstruction
Sorath Noorani Siddiqui1, Abdul Hannan1, Hassan Mansoor1
1Department of Pediatric Ophthalmology, Al-Shifa Trust Eye Hospital, Rawalpindi.
Insights
Children with bilateral congenital nasolacrimal duct obstruction (CNLDO) show insignificant refractive differences between eyes. Routine cycloplegic refraction and early surgery may not be urgent for bilateral CNLDO cases.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Refractive Error Assessment
Background:
- Congenital nasolacrimal duct obstruction (CNLDO) is common in infants.
- Bilateral CNLDO affects both eyes, potentially impacting visual development.
- Understanding refractive status in these children is crucial for timely management.
Purpose of the Study:
- To evaluate the refractive status in children diagnosed with bilateral CNLDO.
- To compare refractive errors between the two eyes in affected children.
- To inform management strategies for bilateral CNLDO.
Main Methods:
- A descriptive study was conducted involving 117 children with bilateral CNLDO.
- Cycloplegic refraction was performed to assess refractive errors.
- Interocular differences in spherical equivalent and cylindrical errors were analyzed.
Main Results:
- The median age of participants was 32 months.
- No significant interocular difference in spherical equivalent or cylindrical refractive errors was found (p>0.05).
- Anisometropia (>1 D difference) was observed in 5.98% of children.
Conclusions:
- Routine cycloplegic refraction is less urgent in bilateral CNLDO compared to unilateral cases.
- Delaying early surgical intervention for bilateral CNLDO may reduce parental distress and improve health economics.
- This suggests a more conservative approach to refractive assessment and surgical timing in bilateral CNLDO.
Objective:
To evaluate the state of refraction in children with bilateral congenital nasolacrimal duct obstruction (CNLDO).
Study Design:
Descriptive study.
Place And Duration Of Study:
Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan, from April 2014 to April 2016.
Methodology:
Children with bilateral CNLDO were studied. Patients' refractive status were evaluated by performing cycloplegic refraction, followed by appropriate management plan. The refractive errors of both eyes were noted and compared for any significant anisometropia.
Results:
One hundred and seventeen (n=117) children with median age (IQR) of 32 (12) months having bilateral CNLDO were enrolled. Children with bilateral CNLDO had insignificant interocular difference in terms of spherical equivalent (SE) and cylindrical refractive errors (p>0.05). The rate of the anisometropia (>1 D difference between the two eyes) was 5.98% (n=7) in children with bilateral CNLDO.
Conclusion:
Performing cycloplegic refraction routinely in patients with bilateral CNLDO is not as urgent as compared to ones with unilateral CNLDO. Further, avoidance of early surgical intervention in children with bilateral CNLDO will spare the parents from the emotional trauma and positively influence the health economics worldwide.
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