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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

Distribution of posttreatment best-corrected visual acuities. The mean was LogMAR 0.03±0.01. The success rate was 93.1% based on the cases where the final best-corrected visual acuity was 0.8 (LogMAR=0.1) or higher.
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Figure 2: Distribution of posttreatment best-corrected visual acuities. The mean was LogMAR 0.03±0.01. The success rate was 93.1% based on the cases where the final best-corrected visual acuity was 0.8 (LogMAR=0.1) or higher.

Mentions: Mean posttreatment BCVA was LogMAR 0.03±0.01. Classification of the posttreatment BCVA showed 1.0 (LogMAR=0.0) in 22 cases (75.86%), 0.8~0.9 (LogMAR=0.1) in five cases (17.24%) and 0.5 (LogMAR=0.3) in one case (3.45%). The posttreatment BCVA of one child who failed to continue the occlusion was 0.1 (LogMAR=1.0). The success rate was 93.1% (n=27/29) (Fig. 2). At the end of the period of occlusion therapy, the posttreatment stereopsis was examined in 23 cases, and the mean was 79.78±37.61 seconds of arc. The subjects mostly showed good posttreatment stereopsis of 100 seconds of arc or better (Table 4). Both the pretreatment and posttreatment stereopsis were examined in 17 cases. Among those, 14 showed improved posttreatment stereopsis, one exhibited a worsened posttreatment stereopsis and two had no change compared with preteatment stereopsis. In addition, the BCVA of their sound eyes continuously maintained a visual acuity of 1.0 (LogMAR=0.0).


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

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

Distribution of posttreatment best-corrected visual acuities. The mean was LogMAR 0.03±0.01. The success rate was 93.1% based on the cases where the final best-corrected visual acuity was 0.8 (LogMAR=0.1) or higher.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 2: Distribution of posttreatment best-corrected visual acuities. The mean was LogMAR 0.03±0.01. The success rate was 93.1% based on the cases where the final best-corrected visual acuity was 0.8 (LogMAR=0.1) or higher.
Mentions: Mean posttreatment BCVA was LogMAR 0.03±0.01. Classification of the posttreatment BCVA showed 1.0 (LogMAR=0.0) in 22 cases (75.86%), 0.8~0.9 (LogMAR=0.1) in five cases (17.24%) and 0.5 (LogMAR=0.3) in one case (3.45%). The posttreatment BCVA of one child who failed to continue the occlusion was 0.1 (LogMAR=1.0). The success rate was 93.1% (n=27/29) (Fig. 2). At the end of the period of occlusion therapy, the posttreatment stereopsis was examined in 23 cases, and the mean was 79.78±37.61 seconds of arc. The subjects mostly showed good posttreatment stereopsis of 100 seconds of arc or better (Table 4). Both the pretreatment and posttreatment stereopsis were examined in 17 cases. Among those, 14 showed improved posttreatment stereopsis, one exhibited a worsened posttreatment stereopsis and two had no change compared with preteatment stereopsis. In addition, the BCVA of their sound eyes continuously maintained a visual acuity of 1.0 (LogMAR=0.0).

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