Related Experiment Video
Updated: Jun 8, 2026

Retinal Pathophysiological Evaluation in a Rat Model
Published on: May 6, 2022
Retinal thickness in the offspring of diabetic pregnancies
Yasser M Tariq1, Chameen Samarawickrama, Haitao Li
1Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, Sydney, Australia.
Insights
Maternal diabetes during pregnancy is linked to thinner macular thickness in children. This study found specific retinal changes in offspring, suggesting a potential impact on retinal development.
Area of Science:
- Ophthalmology
- Developmental Biology
- Endocrinology
Background:
- Maternal diabetes mellitus can affect fetal development.
- Retinal structure and function may be influenced by prenatal environmental factors.
Purpose of the Study:
- To compare macular and peripapillary retinal nerve fiber layer (RNFL) thickness in children born to mothers with and without diabetes.
- Investigate the impact of maternal diabetes on offspring retinal morphology.
Main Methods:
- A cross-sectional study involving 2367 children (age 11.1–14.4 years) from the Sydney Myopia Study.
- Ocular examinations included visual acuity, refraction, axial length, and optical coherence tomography (OCT) using Stratus OCT.
- Detailed questionnaires collected data on birth parameters and medical history.
Main Results:
- Children from diabetic pregnancies (n=57) showed significantly thinner inner and outer macular thickness and macular volume compared to controls.
- No significant differences were observed in central macular thickness, foveal minimum thickness, or RNFL parameters between the groups.
- Adequate-quality OCT scans were obtained from 1741 (RNFL) and 1687 (macular) children.
Conclusions:
- Maternal diabetes during pregnancy is associated with alterations in the offspring's retinal morphology.
- Thinning of pericentral macular parameters was observed in children of diabetic pregnancies.
- These findings suggest that maternal diabetes may impact retinal development in children.
Purpose:
To compare macular and peripapillary retinal nerve fiber layer (RNFL) thickness in children from diabetic compared with nondiabetic pregnancy.
Design:
Cross-sectional study.
Methods:
As part of the Sydney Myopia Study, 2367 children from grade 7 (age range 11.1 to 14.4 years) completed detailed ocular examinations during 2004-2005. Examination included determination of best-corrected visual acuity (logarithm of minimal angle of resolution) and autorefraction after cycloplegia. Axial length was measured using noncontact interferometry. Optical coherence tomography (OCT) was performed using Stratus OCT through dilated pupils. Participants and parents completed comprehensive questionnaires including questions on birth parameters and medical history.
Results:
There were 1741 and 1687 children with adequate-quality RNFL and macular scans respectively, who had complete examination and questionnaire data. There were 57 children from diabetic pregnancies who had both RNFL and macular scans. Children from diabetic pregnancies had significantly thinner inner (264.9 μm vs 270.2 μm, P = .007) and outer (231.9 μm vs 238.6 μm, P = .0001) macular thickness and macular volume (6.75 mm(3) vs 6.92 mm(3), P = .0003) compared with children from nondiabetic pregnancies. However, central macular thickness, foveal minimum thickness, and RNFL parameters were not significantly different between the 2 groups.
Conclusion:
Diabetes during pregnancy is associated with changes in retinal morphology in the offspring. Thinning of the pericentral macular parameters was evident in Stratus OCT scans of children from diabetic pregnancies. These findings suggest the possibility that maternal diabetes impacts on the development of the retina.
Related Concept Videos
Diabetic Retinopathy
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Diabetes Mellitus: Type 2 and Gestational

