Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction
Purpose: To evaluate refractive state in children with unilateral congenital nasolacrimal duct obstruction (NLDO). Methods: This descriptive cross-sectional study includes consecutive children with unilateral congenital NLDO. Examination under anesthesia was performed to perform cycloplegic refract...
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| Format: | Article |
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Knowledge E
2012-01-01
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| Series: | Journal of Ophthalmic & Vision Research |
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| Online Access: | http://www.jovr.org/article.asp?issn=2008-322X;year=2012;volume=7;issue=4;spage=310;epage=315;aulast=Bagheri |
| _version_ | 1811193723342553088 |
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| author | Abbas Bagheri Sharareh Safapoor Shahin Yazdani Mehdi Yaseri |
| author_facet | Abbas Bagheri Sharareh Safapoor Shahin Yazdani Mehdi Yaseri |
| author_sort | Abbas Bagheri |
| collection | DOAJ |
| description | Purpose: To evaluate refractive state in children with unilateral congenital nasolacrimal duct obstruction (NLDO).
Methods: This descriptive cross-sectional study includes consecutive children with unilateral congenital NLDO. Examination under anesthesia was performed to perform cycloplegic refraction and was followed by appropriate intervention in each patient. Refractive errors of the involved and sound fellow eyes were compared.
Results: Ninety-four children with mean age of 25.420.4 months (range, 6 months to 10 years) were enrolled from May 2007 to January 2010. Based on spherical equivalent refractive error, hyperopia was more common in the affected eyes, however this difference failed to reach statistical significance (P=0.5). Anisometropia more and less than 0.5 diopters (D) was present in 25% and 43% of patients respectively. Interocular difference was significant in terms of spherical refractive error and spherical equivalent (P=0.003) but not cylindrical refractive error. When the comparison was limited to hyperopic eyes, the interocular difference became more significant in terms of spherical refractive error and spherical equivalent (P<0.001). Each month of increase in age was associated with an interocular difference of 0.007D in spherical refractive error (r=0.242, P=0.02). Older age at the time of intervention was associated with more procedures (r=0.297, P=0.004).
Conclusion: Unilateral congenital NLDO is associated with anisometropia especially anisohyperopia which may predispose affected children to amblyopia. With increasing age, the degree of anisometropia and the number of required procedures increase. It is prudent to perform refraction and initiate proper intervention at a younger age. |
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| format | Article |
| id | doaj.art-e7273a930dcb4ddfa556063d3922bdf2 |
| institution | Directory Open Access Journal |
| issn | 2008-322X |
| language | English |
| last_indexed | 2024-04-12T00:13:12Z |
| publishDate | 2012-01-01 |
| publisher | Knowledge E |
| record_format | Article |
| series | Journal of Ophthalmic & Vision Research |
| spelling | doaj.art-e7273a930dcb4ddfa556063d3922bdf22022-12-22T03:55:54ZengKnowledge EJournal of Ophthalmic & Vision Research2008-322X2012-01-0174310315Refractive State in Children with Unilateral Congenital Nasolacrimal Duct ObstructionAbbas BagheriSharareh SafapoorShahin YazdaniMehdi YaseriPurpose: To evaluate refractive state in children with unilateral congenital nasolacrimal duct obstruction (NLDO). Methods: This descriptive cross-sectional study includes consecutive children with unilateral congenital NLDO. Examination under anesthesia was performed to perform cycloplegic refraction and was followed by appropriate intervention in each patient. Refractive errors of the involved and sound fellow eyes were compared. Results: Ninety-four children with mean age of 25.420.4 months (range, 6 months to 10 years) were enrolled from May 2007 to January 2010. Based on spherical equivalent refractive error, hyperopia was more common in the affected eyes, however this difference failed to reach statistical significance (P=0.5). Anisometropia more and less than 0.5 diopters (D) was present in 25% and 43% of patients respectively. Interocular difference was significant in terms of spherical refractive error and spherical equivalent (P=0.003) but not cylindrical refractive error. When the comparison was limited to hyperopic eyes, the interocular difference became more significant in terms of spherical refractive error and spherical equivalent (P<0.001). Each month of increase in age was associated with an interocular difference of 0.007D in spherical refractive error (r=0.242, P=0.02). Older age at the time of intervention was associated with more procedures (r=0.297, P=0.004). Conclusion: Unilateral congenital NLDO is associated with anisometropia especially anisohyperopia which may predispose affected children to amblyopia. With increasing age, the degree of anisometropia and the number of required procedures increase. It is prudent to perform refraction and initiate proper intervention at a younger age.http://www.jovr.org/article.asp?issn=2008-322X;year=2012;volume=7;issue=4;spage=310;epage=315;aulast=BagheriAmblyopia; Anisometropia; Nasolacrimal Duct Obstruction; Refraction |
| spellingShingle | Abbas Bagheri Sharareh Safapoor Shahin Yazdani Mehdi Yaseri Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction Journal of Ophthalmic & Vision Research Amblyopia; Anisometropia; Nasolacrimal Duct Obstruction; Refraction |
| title | Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction |
| title_full | Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction |
| title_fullStr | Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction |
| title_full_unstemmed | Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction |
| title_short | Refractive State in Children with Unilateral Congenital Nasolacrimal Duct Obstruction |
| title_sort | refractive state in children with unilateral congenital nasolacrimal duct obstruction |
| topic | Amblyopia; Anisometropia; Nasolacrimal Duct Obstruction; Refraction |
| url | http://www.jovr.org/article.asp?issn=2008-322X;year=2012;volume=7;issue=4;spage=310;epage=315;aulast=Bagheri |
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