Bergmanson Jan P G, Walker Maria K, Johnson Leah A
*OD, PhD, FAAO †OD, MS, FAAO ‡OD Texas Eye Research and Technology Center, University of Houston College of Optometry, Houston, Texas (all authors).
Optom Vis Sci. 2016 Aug;93(8):855-60. doi: 10.1097/OPX.0000000000000882.
To assess perceived comfort and related experiences of adapted keratoconic scleral contact lens (17-18.2 mm) wearers with a history of wearing other contact lens modalities and to compare these subjective clinical effects with previous experiences.
Twenty-four keratocones were recruited, signed an informed consent approved by the University Internal Review Board, and were asked to complete a survey and a dry eye questionnaire.
Previous lens wearing experience included soft, piggy back, and hybrid lenses but predominantly was corneal gas permeable. An overwhelming majority strongly preferred the comfort and vision with the scleral contact lenses. This cohort of keratoconus patients were on average dry eye suspects according to a dry eye questionnaire but contained individuals with either normal or significantly dry eye scores. However, patients stated that they experienced less dryness with their scleral lenses, but slightly more than half of these patients experienced, at least occasionally, midday fogging.
The scleral contact lenses are extremely well accepted by keratoconic patients because of comfort and vision these devices provide. For many patients, they offer further relief from dryness symptoms. However, midday fogging remains a limitation for many wearers.
评估有佩戴其他类型隐形眼镜史的圆锥角膜适应性巩膜接触镜(17 - 18.2毫米)佩戴者的舒适度及相关体验,并将这些主观临床效果与以往经历进行比较。
招募了24名圆锥角膜患者,他们签署了经大学内部审查委员会批准的知情同意书,并被要求完成一项调查和一份干眼问卷。
以往的镜片佩戴经历包括软性、背驮式和混合型镜片,但主要是角膜透气性镜片。绝大多数人强烈倾向于巩膜接触镜带来的舒适度和视力。根据干眼问卷,这组圆锥角膜患者平均而言是干眼疑似患者,但其中也有干眼评分正常或显著干眼的个体。然而,患者表示佩戴巩膜镜片时干眼症状减轻,但超过半数的患者至少偶尔会在中午出现镜片模糊。
巩膜接触镜因其提供的舒适度和视力而被圆锥角膜患者广泛接受。对许多患者来说,它们进一步缓解了干眼症状。然而,中午镜片模糊对许多佩戴者来说仍是一个限制因素。