概述
What is neurotrophic keratitis?
Neurotrophic keratitis is a rare eye disorder that affects the cornea. The cornea is the clear (transparent) outer layer of the eye. It functions like a window that focuses the entry of light into the eye. The cornea bends light, allowing it to pass through the pupil, eventually reaching the retina where specialized cells called cones and rods convert light to nerve impulses. These impulses travel along the optic nerve to the brain to become images. Neurotrophic keratitis is caused when the nerves that serve (innervate) the cornea cannot function properly. Neurotrophic keratitis causes reduced sensitivity of the cornea. When the cornea senses stimulation or pressure, the eyelid will close and tears will be produced to protect the cornea and the eye. When these nerves do not function properly, the outer layer of the cornea, called the epithelium, can break down, resulting in an epithelial defect. In more advanced neurotrophic keratitis, an interior layer called the cornea stroma can break down as well, resulting in thinning of the cornea. This is called stromal ‘melting’. In advanced stromal melting, the cornea can thin to a severe degree, which can result in a hole or opening to the inside of the eye. This can lead to infection and potentially loss of the eye. Neurotrophic keratitis can lead to a variety of complications, including poor wound healing of the cornea, scarring of the cornea, and loss of vision.
How common is neurotrophic keratitis?
Neurotrophic keratitis is a rare disorder with prevalence at approximately less than 5 people per every 10,000 in the general population.
Questions regarding your neurotrophic keratitis therapy?
You can reach the Accredo neurotrophic keratitis care team, anytime, day or night, seven days a week by phone or online.
24 小时客户服务中心
Call 1-877-831-8112
症状
What are the symptoms of neurotrophic keratitis?
Early on, affected individuals may not have any symptoms of the disorder (asymptomatic). Because the sensitivity of the cornea is reduced, affected individuals often do not complain of pain or discomfort in the eye. Blurred vision, red eyes, dry eyes, and decreased clarity (acuity) of vision can develop. Affected individuals may become extremely sensitive to light (photophobia). The affected cornea can be easily injured and heals slower than an unaffected cornea does (poor wound healing). This leaves the cornea susceptible to damage. Affected individuals may experience frequent or recurrent corneal erosions, which is when an opening in the epithelial layer develops (epithelial defect). Since the epithelial layer is the protective layer of the cornea, an epithelial defect can leave the eye more susceptible to infection.
More serious complications can develop, including irregular astigmatism, a condition causing blurred vision that results when the cornea becomes irregularly shaped or abnormally curved. Affected individuals may develop scarring of the cornea. As the inner layer, or stroma, breaks down and becomes thinner, the cornea can become even more irregularly shaped, and more severe scarring can develop. In the most severe instances, the cornea can perforate, resulting in loss of the inner fluid of the eye. Neurotrophic keratitis can lead to permanent loss of vision, if not properly treated.
如何诊断？
A diagnosis of neurotrophic keratitis is based upon identification of characteristic symptoms, a detailed patient and family history, a thorough clinical evaluation, and a variety of specialized tests. A diagnosis should be suspected in individuals with unexplained signs of reduced corneal sensitivity and damage to the cornea.
药品
The following specialty medications are available at Accredo, a specialty pharmacy for neurotrophic keratitis
节约护理费用
您还可获得经济援助，以承担您的部分药品费用，包括生产商和社区计划。Accredo 专家可以帮助您找到适合您的计划。
- 全国罕见病组织 (NORD) | 855-567-3680
- Patient Access Network Foundation (PANF) | 866-316-7263
- The Assistance Fund (TAT) | 855-940-3153
财政指导
急救性质的特殊药品很昂贵。通过此视频，了解 Accredo 团队如何帮助个人找到可以负担他们救命药品费用的方式。
查找支持
Neurotrophic Keratitis Organizations
There are many organizations that support research and advocacy for <neurotrophic keratitis>. 下面是其中部分组织。
支持组织
团队介绍
Accredo’s neurotrophic keratitis care team is dedicated to serving you and we understand the complexity of your condition. 我们的临床专家每周 7 天、每天 24 小时为您提供服务，以回答您的任何问题。
24 小时客户服务中心
Call 1-877-831-8112