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Part-time occlusion therapy for anisometropic amblyopia detected in children eight years of age and older.

Lee YR, Lee JY - Korean J Ophthalmol (2006)

Bottom Line: The major component of the anisometropia was hyperopia in 51.7% of the subjects, and hyperopia plus astigmatism was found in 24.1%.The time taken to reach the posttreatment BCVA was shorter in subjects with a better pretreatment BCVA (p = 0.019), but it did not relate to the compliance (p = 0.366).The most common component of anisometropia detected after 8 years of age was hyperopia.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Hallym University College of Medicine, Chunchon Sacred Heart Hospital, Chunchon, Korea.

ABSTRACT

Purpose: To determine the outcome of part-time occlusion therapy in children with anisometropic amblyopia detected after they were 8 years of age.

Methods: We analyzed 29 eyes with anisometropic amblyopia in children 8 years of age and older. The mean age was 8.79 +/- 0.98 (range 8-12) years old. The subjects whose best-corrected visual acuity (BCVA) did not improve by two lines or better within 2 weeks of wearing glasses full-time were prescribed occlusion therapy for 6 hours a day outside of school hours, along with the instruction to wear glasses full-time. Subjects who complied with occlusion for more than 3 hours a day were considered to comply well.

Results: The major component of the anisometropia was hyperopia in 51.7% of the subjects, and hyperopia plus astigmatism was found in 24.1%. The mean pretreatment BCVA score was 0.51 0.23 (LogMAR). Compliance was 89.66%. The mean posttreatment BCVA was 0.03 +/- 0.01 (LogMAR), and the success rate, based on a posttreatment BCVA of 0.1 (LogMAR) and better, was 96.43%. It took an average of 4.79 +/- 3.35 months to reach the desired posttreatment BCVA. The mean posttreatment stereopsis was 79.78 +/- 37.61 seconds of arc. The recurrence rate was 8%. The visual improvement was related to the degree of compliance (p = 0.000). The time taken to reach the posttreatment BCVA was shorter in subjects with a better pretreatment BCVA (p = 0.019), but it did not relate to the compliance (p = 0.366).

Conclusions: The most common component of anisometropia detected after 8 years of age was hyperopia. The part-time occlusion therapy, which had been carried out after school hours, was successful in most cases.

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Related in: MedlinePlus

The period of occlusion therapy determined by the time at which the pretreatment best-corrected visual acuity reached a plateau of its best level. In most cases it took less than 6 months, and the mean period of occlusion therapy was 4.79±3.35 months.
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Figure 4: The period of occlusion therapy determined by the time at which the pretreatment best-corrected visual acuity reached a plateau of its best level. In most cases it took less than 6 months, and the mean period of occlusion therapy was 4.79±3.35 months.

Mentions: The mean period of occlusion therapy overall was 4.79±3.35 months. (Fig. 4) The mean period of occlusion therapy in the 6-hour group was 5.31±3.20 months, was 5.00±3.56 months in the 4~5-hour group, and was 1.00±0.00 month in the less-than-3-hour group. However, occlusion time and the period of occlusion therapy did not show a significant correlation (Pearson correlation coefficient=0.193; p=0.366) and no difference was seen in the mean period of occlusion therapy between the three classes when divided by occlusion time (ANOVA test, p=0.938). The preteatment LogMAR BCVA was positively correlated with the period of occlusion therapy (Pearson correlation coefficient=0.442; p=0.019). As a result of dividing the pretreatment BCVA into three groups, the period of occlusion therapy between the groups showed significant differences (ANOVA test, p=0.027). We determined that the worse the pretreatment BCVA was, the longer the period of required occlusion therapy.


Part-time occlusion therapy for anisometropic amblyopia detected in children eight years of age and older.

Lee YR, Lee JY - Korean J Ophthalmol (2006)

The period of occlusion therapy determined by the time at which the pretreatment best-corrected visual acuity reached a plateau of its best level. In most cases it took less than 6 months, and the mean period of occlusion therapy was 4.79±3.35 months.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2908842&req=5

Figure 4: The period of occlusion therapy determined by the time at which the pretreatment best-corrected visual acuity reached a plateau of its best level. In most cases it took less than 6 months, and the mean period of occlusion therapy was 4.79±3.35 months.
Mentions: The mean period of occlusion therapy overall was 4.79±3.35 months. (Fig. 4) The mean period of occlusion therapy in the 6-hour group was 5.31±3.20 months, was 5.00±3.56 months in the 4~5-hour group, and was 1.00±0.00 month in the less-than-3-hour group. However, occlusion time and the period of occlusion therapy did not show a significant correlation (Pearson correlation coefficient=0.193; p=0.366) and no difference was seen in the mean period of occlusion therapy between the three classes when divided by occlusion time (ANOVA test, p=0.938). The preteatment LogMAR BCVA was positively correlated with the period of occlusion therapy (Pearson correlation coefficient=0.442; p=0.019). As a result of dividing the pretreatment BCVA into three groups, the period of occlusion therapy between the groups showed significant differences (ANOVA test, p=0.027). We determined that the worse the pretreatment BCVA was, the longer the period of required occlusion therapy.

Bottom Line: The major component of the anisometropia was hyperopia in 51.7% of the subjects, and hyperopia plus astigmatism was found in 24.1%.The time taken to reach the posttreatment BCVA was shorter in subjects with a better pretreatment BCVA (p = 0.019), but it did not relate to the compliance (p = 0.366).The most common component of anisometropia detected after 8 years of age was hyperopia.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Hallym University College of Medicine, Chunchon Sacred Heart Hospital, Chunchon, Korea.

ABSTRACT

Purpose: To determine the outcome of part-time occlusion therapy in children with anisometropic amblyopia detected after they were 8 years of age.

Methods: We analyzed 29 eyes with anisometropic amblyopia in children 8 years of age and older. The mean age was 8.79 +/- 0.98 (range 8-12) years old. The subjects whose best-corrected visual acuity (BCVA) did not improve by two lines or better within 2 weeks of wearing glasses full-time were prescribed occlusion therapy for 6 hours a day outside of school hours, along with the instruction to wear glasses full-time. Subjects who complied with occlusion for more than 3 hours a day were considered to comply well.

Results: The major component of the anisometropia was hyperopia in 51.7% of the subjects, and hyperopia plus astigmatism was found in 24.1%. The mean pretreatment BCVA score was 0.51 0.23 (LogMAR). Compliance was 89.66%. The mean posttreatment BCVA was 0.03 +/- 0.01 (LogMAR), and the success rate, based on a posttreatment BCVA of 0.1 (LogMAR) and better, was 96.43%. It took an average of 4.79 +/- 3.35 months to reach the desired posttreatment BCVA. The mean posttreatment stereopsis was 79.78 +/- 37.61 seconds of arc. The recurrence rate was 8%. The visual improvement was related to the degree of compliance (p = 0.000). The time taken to reach the posttreatment BCVA was shorter in subjects with a better pretreatment BCVA (p = 0.019), but it did not relate to the compliance (p = 0.366).

Conclusions: The most common component of anisometropia detected after 8 years of age was hyperopia. The part-time occlusion therapy, which had been carried out after school hours, was successful in most cases.

Show MeSH
Related in: MedlinePlus