A Novel Technique for Measuring Ocular Duction Ranges

CT-based artificial intelligence prediction model for ocular motility score of thyroid eye disease

PURPOSE

Thyroid eye disease (TED) is the most common orbital disease in adults. Ocular motility restriction is the primary complaint of patients, while its evaluation is quite difficult. The present study aimed to introduce an artificial intelligence (AI) model based on orbital computed tomography (CT) images for ocular motility score.

METHODS

A total of 410 sets of CT images and clinical data were obtained from the hospital. To build a triple classification predictive model for ocular motility score, multiple deep learning models were employed to extract features of images and clinical data. Subgroup analyses based on pertinent clinical features were performed to test the efficacy of models.

RESULTS

The ResNet-34 network outperformed Alex-Net and VGG16-Net in prediction of ocular motility score, with the optimal accuracy (ACC) of 0.907, 0.870, and 0.890, respectively. Subgroup analyses indicated no significant difference in ACC between active or inactive phase, functional visual field diplopia or peripheral visual field diplopia (p > 0.05). However, in the gender subgroup, the prediction model performed more accurately in female patients than males (p = 0.02).

CONCLUSION

In conclusion, the AI model based on CT images and clinical data successfully realized automatic scoring of ocular motility in TED patients. This approach potentially enhanced the efficiency and accuracy of ocular motility evaluation, thus facilitating clinical application.

Surgical management of oculomotor nerve palsy - a review of the literature

We aim to review the surgical management techniques available for patients with oculomotor nerve (OMN) palsy, compare and contrast the approaches and subsequent outcomes. A search of the literature was carried out to yield all papers relevant to the topic, and a wide spectrum of surgical techniques were identified. These included: muscle shortening and lengthening procedures, muscle transposition, globe fixation and ptosis surgery. Patients often require a synergistic combination of these techniques. Strabismus surgery for OMN palsy can be approached through a variety of different techniques to improve the quality of life, independence and aesthetics for the patient.