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LETTER TO THE EDITOR
Year : 2020  |  Volume : 68  |  Issue : 10  |  Page : 2328-2329

Comments on: Comparison of higher order aberrations in amblyopic and non-amblyopic eyes in pediatric patients with anisometropic amblyopia


1 Department of Binocular Vision Disorders, Jyotirmay Eye Clinic for Children and Adult Squint and Ocular Motility Laboratory, Thane, Maharashtra, India
2 Department of Binocular Vision Disorders, Jyotirmay Eye Clinic for Children and Adult Squint and Ocular Motility Laboratory, Thane; Department of Pediatric Ophthalmology, Krishna Eye Center, Garodia Nagar, Ghatkopar East; Department of Pediatric Ophthalmology, Mehta Eye Clinic, Ghatkopar, Mumbai, Maharashtra, India
3 Department of Pediatric Ophthalmology, Krishna Eye Center, Garodia Nagar, Ghatkopar East, Mumbai, Maharashtra, India
4 Department of Pediatric Ophthalmology, Mehta Eye Clinic, Ghatkopar, Mumbai, Maharashtra, India

Date of Web Publication23-Sep-2020

Correspondence Address:
Dr. Mihir Kothari
Jyotirmay Eye Clinic for Children and Adult Squint, Ocular Motility Lab and Pediatric Low Vision Center, 104, 105 Kaalika Tower, Kolbad Road, Khopat, Thane West - 400 601, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_353_20

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How to cite this article:
Solanki M, Jahan S, Kothari M, Abdal MO, Mehta M, Ingle G. Comments on: Comparison of higher order aberrations in amblyopic and non-amblyopic eyes in pediatric patients with anisometropic amblyopia. Indian J Ophthalmol 2020;68:2328-9

How to cite this URL:
Solanki M, Jahan S, Kothari M, Abdal MO, Mehta M, Ingle G. Comments on: Comparison of higher order aberrations in amblyopic and non-amblyopic eyes in pediatric patients with anisometropic amblyopia. Indian J Ophthalmol [serial online] 2020 [cited 2020 Oct 31];68:2328-9. Available from: https://www.ijo.in/text.asp?2020/68/10/2328/295737



Dear Editor:

We read the interesting study by Hoshing et al.[1] reporting the higher levels of internal higher order aberration (HOA) in the amblyopic eyes of patients with anisometropic amblyopia.

In the study,[1] the authors compared the HOAs of amblyopic eyes (group 1) with the HOAs of the nonamblyopic eyes (group 2) of the same individual that had emmetropia or lower ametropia. This could lead to a false association between high HOAs and anisometropic amblyopia when the real association could have been between high HOAs and ametropia. The authors should have compared HOAs of group 1 with the HOAs of other age-matched subjects having comparable magnitude of ametropia sans amblyopia.

In the paucity of such a comparison group, an analysis of HOAs in the eyes with lower ametropia with the eyes having higher ametropia (with and without amblyopia) could rule out a false association of high HOAs with anisometropic amblyopia in place of higher ametropia.

Nevertheless, we are in agreement with the authors as a study done by us in 2013 using the iTrace ® on 86 eyes of 47 children had also showed higher levels of the HOA in the amblyopic eyes (anisometropic amblyopia as well as isoametropic amblyopia) in comparison with the nonamblyopic eyes of the same patients as well as the nonamblyopic eyes of other subjects having the same degree of ametropia [Table 1] sans amblyopia.[2]
Table 1: Higher order aberrations in the amblyopic eyes in comparison with the nonamblyopic eyes of other subjects having the same degree of ametropia

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We had treated some of our patients with high HOAs and residual anisometropic amblyopia who failed occlusion therapy with “aberration neutralizing” lenses (i. Scription ®, Zeiss, Germany) and found modest reduction in the HOAs using i. Profiler plus (Zeiss, Germany). Although our patients had marginal (0-1 line) improvement in vision on the logMAR (ETDRS) chart, there was no additional improvement when the patching was given with such spectacles. As the clinical improvement was marginal and the cost of lenses was high, we did not continue this modality to manage the high HOAs of the patients with anisometropic amblyopia.

We request the authors to share their perspective or experience regarding the benefits of treating high HOAs in children with amblyopia.

Although higher levels of HOAs in Amblyopic eyes with anisometropia are noted since long, we still wonder about the following questions regarding high HOAs with amblyopia and would appreciate authors perspectives on the same.

  1. Whether higher HOAs are associated with higher degree or higher prevalence of anisometropic or isoametropic amblyopia or both?
  2. Are higher HOAs an etiological factor for partial or nonimprovement of vision in residual amblyopia?
  3. Would treating the HOAs result in better visual outcomes in amblyopia?


Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Hoshing A, Samant M, Bhosale S, Naik AM. Comparison of higher order aberrations in amblyopic and non-amblyopic eyes in pediatric patients with anisometropic amblyopia. Indian J Ophthalmol 2019;67:1025-9.  Back to cited text no. 1
[PUBMED]  [Full text]  
2.
Kothari M. Higher order aberration: The second refractive error in residual ametropic and anisometropic amblyopia! Presented at AIOC 2014, Agra. AIOS Proceeding 2014. https://www.aios.org/aios-proceedings-1.php. [ Last accessed on 2020 Mar 08].  Back to cited text no. 2
    



 
 
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