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Differences in ocular dimensions between normal and dry eyes
Juan A Sanchis-Gimeno1, Manuel Herrera, Franzisco Sánchez-del-Campo
1Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, Apartado de correos 15038, 46080, Valencia, Spain. juan.sanchis@uv.es
Surgical and Radiologic Anatomy : SRA
|February 16, 2006
Summary
Dry eye disease significantly impacts central corneal thickness (CCT) but does not affect anterior chamber depth, lens thickness, vitreous chamber depth, or axial length in ocular measurements.
Area of Science:
- Ophthalmology
- Optometry
- Biomedical Engineering
Background:
- Accurate ocular measurements are crucial for refractive and cataract surgeries.
- The influence of dry eye disease on various ocular dimensions requires clarification.
Purpose of the Study:
- To investigate the effect of dry eye disease on central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), vitreous chamber depth (VCD), and axial length.
Main Methods:
- Ocular biometry performed on 125 participants (64 healthy, 61 dry eye).
- Central corneal thickness (CCT) measured using scanning-slit corneal topography.
- Anterior chamber depth (ACD), lens thickness (LT), vitreous chamber depth (VCD), and axial length measured via A-mode ultrasound.
Main Results:
- No significant differences were found in ACD, LT, VCD, or axial length between healthy and dry eyes.
- A statistically significant reduction in central corneal thickness (CCT) was observed in dry eyes compared to healthy eyes (P<0.001).
Conclusions:
- Dry eye disease appears to significantly reduce central corneal thickness (CCT).
- Other measured ocular parameters (ACD, LT, VCD, axial length) are not significantly affected by dry eye disease.