The Relationship between Keratoconus and Joint Hypermobility
Journal of Ophthalmic and Optometric Sciences,
Vol. 7 No. 2 (2023),
2 April 2023
,
Page 9-13
https://doi.org/10.22037/joos.v7i2.45975
Abstract
Purpose: To evaluate the relation between joint hypermobility and keratoconus.
Patients and Methods: This case-control study was conducted at the Ophthalmology Department of Baqiyatallah Hospital, Tehran, Iran, from September 2020 to April 2021. The case group consisted of patients with keratoconus, while the control group included healthy individuals. The hypermobility score (Beighton test) was calculated for patients in both groups.
Results: A total of 127 keratoconus patients were enrolled as the case group. Additionally, 34 healthy individuals were evaluated as the control group. When comparing joint hypermobility individually, the case group showed significantly higher spinal column forward flexion hypermobility (P < 0.01) and elbow joint hypermobility (P = 0.03). In the case group, 43 patients (33 %) had a Beighton mobility score of more than 4, implying general joint hypermobility, compared to 8 patients (23.5 %) in the control group, indicating no statistically significant difference between the two groups (P = 0.22). Despite the lack of correlation between general joint hypermobility and the presence or absence of keratoconus, a significant correlation was observed between the severity of keratoconus and joint hypermobility in patients with keratoconus, such that higher stages of keratoconus were associated with greater joint hypermobility (P < 0.001).
Conclusion: Based on our findings, it can be concluded that although joint hypermobility and keratoconus may not necessarily be related diseases, there might be a correlation between the severities of these two conditions.
- Keratoconus
- Joint Hypermobility Syndrome
- Correlation
How to Cite
References
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