Oman Journal of Ophthalmology

ORIGINAL ARTICLE
Year
: 2013  |  Volume : 6  |  Issue : 3  |  Page : 165--169

Evaluating a new surgical dosage calculation method for esotropia


Siddharth Agrawal1, Vinita Singh1, Sanjiv Kumar Gupta1, Saurabh Agrawal2 
1 Department of Ophthalmology, King Georges' Medical University, Lucknow, Uttar Pradesh, India
2 Sukriti Eye Clinic, Lucknow, Uttar Pradesh, India

Correspondence Address:
Siddharth Agrawal
Department of Ophthalmology, King Georges«SQ»Medical University, Lucknow, Uttar Pradesh
India

Purpose: To evaluate a simplified method for correction of ocular deviation in patients of infantile and acquired basic esotropia. Materials and Methods: Thirty-six consecutive patients of infantile and acquired basic esotropia were selected for this study. Patients underwent unilateral recession-resection surgery as per the new norm gram. Patients underwent 3.5-7 mm recession of medial rectus (MR) in one eye depending on the pre-operative deviation and patient«SQ»s age. Together they also underwent 6 or 7 mm resection of the lateral rectus (LR) in the same eye depending on patient«SQ»s age (6 mm for 3 years and below and 7 mm for older age). In patients 3 years and below, a correction of 6, 7, or 8 PD/mm of recession of MR was expected when the pre-operative deviation was lesser than 30 PD, between 30 and 60 PD, or above 60 PD, respectively. Similarly, these values were 5, 6, and 7 PD/mm of MR recession in patients above 3 years. A ratio between achieved and expected correction was calculated and the calculation was deemed successful for a patient if this ratio fell between 0.9 and 1.1. Results: The calculation procedure was successful in 33 out of 36 patients (91%). The two-tailed probability on paired Wilcoxon test was 0.187. Conclusions: This simplified method of surgical dosage calculation using MR recession as basis is predictable in patients of infantile and basic Esotropia. It may serve as a useful tool for minimizing variability of surgical results.


How to cite this article:
Agrawal S, Singh V, Gupta SK, Agrawal S. Evaluating a new surgical dosage calculation method for esotropia.Oman J Ophthalmol 2013;6:165-169


How to cite this URL:
Agrawal S, Singh V, Gupta SK, Agrawal S. Evaluating a new surgical dosage calculation method for esotropia. Oman J Ophthalmol [serial online] 2013 [cited 2019 Oct 17 ];6:165-169
Available from: http://www.ojoonline.org/article.asp?issn=0974-620X;year=2013;volume=6;issue=3;spage=165;epage=169;aulast=Agrawal;type=0