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Phenotypic plasticity is the ability of individuals to change their phenotypic status when exposed to environmental variations. However, whether the plastic changes show differential susceptibility in adversity and prosperity is debated and the specific pattern of plasticity remains elusive.
Here the investigators address this question by tracking the phenotypes (functional, structural, physical, and attachment traits) in two groups of infants before and after visual deprivation: one group experienced a short duration of complete deprivation (extreme adversity) and the other group experienced a long durations of partial deprivation (watered-down adversity).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| dense cataract group | Experimental |
| |
| non-dense nuclear cataract group | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| bilateral cataract removal surgery for dense cataract | Procedure | Participants were born with dense bilateral cataracts (extreme adversity) will undergo surgery for bilateral cataract removal at an early age, mostly around 3 months of age. |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in visual acuity measured by Teller visual acuity cards | 1 day, 1 week, 2 weeks, 1 month, 3 months, 6 months and 12 months after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in refractive status measured by autorefractor and objective retinoscopy | 1 day, 1 week, 2 weeks, 1 month, 3 months, 6 months and 12 months after surgery |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Haotian Lin | Zhongshan Ophthalmic Center, Sun Yat-sen University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Zhongshan Ophthalmic Center | Guangzhou | Guangdong | 510060 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 21262036 | Background | Ellis BJ, Boyce WT, Belsky J, Bakermans-Kranenburg MJ, van Ijzendoorn MH. Differential susceptibility to the environment: an evolutionary--neurodevelopmental theory. Dev Psychopathol. 2011 Feb;23(1):7-28. doi: 10.1017/S0954579410000611. | |
| 23025924 | Background | Pluess M, Belsky J. Vantage sensitivity: individual differences in response to positive experiences. Psychol Bull. 2013 Jul;139(4):901-16. doi: 10.1037/a0030196. Epub 2012 Oct 1. |
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| ID | Term |
|---|---|
| D002386 | Cataract |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
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| bilateral cataract removal surgery for non-dense nuclear cataract | Procedure | Participants were born with non-dense and nuclear bilateral cataracts (watered-down adversity) will undergo cataract removal surgery bilaterally in a compromised timing, mostly around one year old. |
|