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Ocular findings in children with thalassemia major in Eastern Mediterranean
Adnan Aksoy1, Murat Aslankurt1, Lokman Aslan1
1Department of Ophthalmology, KSU Faculty of Medicine, Kahramanmaraş 46050, Turkey.
Insights
Children with thalassemia major (TM) show reduced tear function and visual acuity compared to healthy children. This study highlights potential ophthalmologic impacts of TM on tear production and vision.
Area of Science:
- Ophthalmology
- Pediatric Hematology
- Genetics
Background:
- Thalassemia major (TM) is a severe inherited blood disorder requiring lifelong transfusions.
- Ophthalmologic complications in TM are not fully understood.
- Assessing ocular health in children with TM is crucial for early intervention.
Purpose of the Study:
- To investigate ophthalmologic findings in children with thalassemia major.
- To compare ocular parameters between children with TM and healthy controls.
Main Methods:
- Cross-sectional study involving 43 children with TM and 47 healthy controls.
- Comprehensive ophthalmic examinations including Schirmer test, tear break-up time (BUT), pachymetry, and axial length measurement.
- Statistical comparison of right eye values between the two groups.
Main Results:
- Children with TM had significantly lower visual acuity (P<0.05).
- Schirmer test scores were significantly lower in children with TM (P<0.01).
- Corneal thickness, axial length, and BUT were comparable between groups.
Conclusions:
- Thalassemia major may affect tear function and visual acuity.
- While corneal and axial length parameters are similar, reduced tear production and visual acuity are notable in children with TM.
Aim:
To investigate ophthalmologic findings in children with thalassemia major (TM) and compare the findings with healthy controls.
Methods:
In a cross-sectional study, 43 children with thalassemia major from pediatric hematology outpatient clinics from two university hospitals and age/sex matched 47 healthy children were included in the study. After a complete ophthalmic examination, tear function tests including the Schirmer test, fluorescein tear break-up time (BUT), ultrasound pachymetry, and axial length measurement were performed. Obtained data was recorded for statistical analysis and the values of right eyes were compared between groups.
Results:
The mean best corrected visual acuity was 1.34±0.75 in TM and 1.08±0.28 in controls. It was found lower than 0.1 logMAR unit in 10 (23.2%) children with TM and 2 (4.2%) in controls, and the difference was statistically significant (P<0.05). The mean central corneal thickness was 540±26.95 in children with TM and 536.98±20.45µm in controls (P>0.05). The mean axial length was 22.53±0.50 in TM and 22.57±0.43mm in the control group. The mean Schirmer test score was 19.94±6.91 in TM and 24.22±3.95mm in the control group (P<0.01). The mean BUT score was 9.62±1.28 in TM and 9.73±0.6s in the control group (P>0.05).
Conclusion:
In TM, while corneal thickness, axial length, and BUT are close to controls, the Schirmer scores are less than normal. The study revealed that TM may be affected by the tear function and visual acuity.
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