Title: Full Time Occlusion: Still a Good Option in Older Age Amblyopia
Authors: Sumera Zargar, Imran Mir, Rameez Ganai
DOI: https://dx.doi.org/10.18535/jmscr/v5i1.89
Abstract
Materials and Methods: This was a retrospective consecutive case series analysis of children treated for amblyopia at a tertiary care center in squint clinic. All children were advised and received full time occlusion (FTO) for the dormant eye.
Results: Hundred children older than 6 years at the time of initiation of therapy were included. Age at initiation of ranged from 6 to 18 years (mean age 11yrs,SD 1.33)Forty-six children were between 6-10yr,32 between 10-14yrs and 22 between 14-18yrs of age .31%of children had severe amblyopia with BCVA ranging from counting fingers to 6\60 on Snellens chart,64% had moderate amblyopia and 5% had mild anisometropic amblyopia. After six months of occlusion therapy seventy nine (79%) patients had improvement in visual acuity (p=0.017). Out of 21 children older than 12 years, only 14 children (66.6%) had improvement in VA. Mean follow-up after complete stoppage of occlusion was 8.57 ± 1.76 months.
Conclusion: Occlusion therapy yields favorable results in anisometropic amblyopia, even when initiated for the first time after 6 years of age. After 12 years of age, some children may still respond to occlusion of the dominant eye.
Keywords: Amblyopia, occlusion.
References
1. Catford GV. Amblyopic occlusion: The results of treatment. Trans OphthalmolSoc UK 1967; 87:179-93.
2. Mintz-Hitner HA, Fernandez KM. Succes-sful amblyopia therapy initiated after age 7 years. Arch Ophthalmol2000;118:1535-41,
3. Quah BL, Tay MT, Chew SJ, Lee LK. A study of amblyopia in 18-19 year old males. Singapore Med J 1991; 32:126-9.
4. Rutstein RP, Fuhr PS. Efficacy and stability of amblyopia therapy. Optom Vis Sci1992; 69:747-54.
5. Flynn JT, Schiffman J, Feuer W, Corona A. The therapy of amblyopia: An analysis of the results of amblyopia therapy utilizing the pooled data of published studies. Trans Am OphthalmolSoc 1998; 96:431-53.
6. Epelbaum M, Milleret C Buisseret P, Dufier JL. The Sensitive Period for stabismic amblyopia in humans. Ophthalmology 1993; 100:323-7.
7. Wick B, Wingard M, Cotter S, Scheiman M. Anisometropic amblyopia: Is the patient ever too old to treat? Optom Vis Sci 1992; 69:866-78.
8. Daw NW. Critical period and amblyopia. Arch Ophthalmol 1998; 116:502-5.
9. Kasser MD, Feldman JB. Amblyopia in adults. Treatment of those engaged in various industries. Am J Ophthalmol 1953; 36:1443-6.
10. Vereecken EP, Brabant P. Prognosis for vision in amblyopia after the loss of the good eye. Arch Ophthalmol 1984; 102:220-4.
11. Oliver M, Neumann R, Chaimovitch Y, Gottesman N, Shimshoni M. Compliance and Results of treatment for amblyopia in children more than 8 years old. Am J Ophthalmol 1986; 102:340-5.
12. Bremner MH. Visual acuity in the primary school child aged four to twelve years: A review of amblyopia treatment in this age group at Princess Margaret Hospital. Aust J Ophthalmol 1984; 12:395-9.