Objective

To describe outcomes using impression based-scleral devices for the management of anterior segment disease.

Methods

Retrospective chart review identified all patients who were fitted with impression-based scleral devices between January 1, 2013 and June 30, 2019 at three specialty contact lens practices. Patient demographic data, indication for device use, visual and physiological outcomes, as well as details of the fitting process and survival of device use were determined.

Results

Forty-four patients (70 eyes) were included in the study. Primary indications for device use included corneal irregularity (28 patients, 44 eyes) and ocular surface disease (16 patients, 26 eyes). Fifty-four percent of patients had more than one ocular surface condition, and 39 % of patients had undergone at least one anterior segment surgical procedure. Twenty-nine patients had unsuccessfully attempted to wear standard scleral lenses prior to being fit with impression-based devices. Visual acuity improved significantly with impression-based devices compared to habitual correction (p < 0.001). Completion of the fitting process (including visit to acquire the impression and post-fitting assessments) required an average of 4 [1.5] visits.Ideal haptic alignment was achieved with 74 % and complete limbal clearance was achieved in 83 % of fits. Device use was discontinued due to complications in two eyes.

Conclusion

Patients with complex eye disease who are unable to successfully wear standard scleral lenses successfully may achieve visual and therapeutic success with impression-based devices.

中文翻译：

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基于印象的巩膜装置的多中心审查

客观的

描述使用基于印象的巩膜装置治疗眼前节疾病的结果。

方法

回顾性图表审查确定了 2013 年 1 月 1 日至 2019 年 6 月 30 日期间在三个专业隐形眼镜诊所安装了基于印象的巩膜装置的所有患者。确定了患者人口统计数据、设备使用指征、视觉和生理结果，以及安装过程和设备使用存活率的详细信息。

结果

研究中包括了 44 名患者（70 只眼）。设备使用的主要适应症包括角膜不规则（28 名患者，44 只眼）和眼表疾病（16 名患者，26 只眼）。54% 的患者有不止一种眼表疾病，39% 的患者至少接受过一次眼前节手术。29 名患者在安装基于印模的设备之前曾尝试佩戴标准巩膜镜片，但未成功。与习惯性矫正相比，基于印象的设备的视力显着提高（p < 0.001）。完成验配过程（包括访问以获取印象和验配后评估）平均需要 4 [1.5] 次访问。理想的触觉对齐达到了 74%，并且在 83% 的验配中实现了完全的角膜缘间隙。

结论

无法成功配戴标准巩膜镜的复杂眼病患者可以使用基于印模的设备在视觉和治疗方面取得成功。