两个兄弟姐妹的电子阴性电网膜图带有视障碍,这是一个未被确诊的儿科遗传视网膜疾病
1Ophthalmology, Integrated Surgical Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates.
概括
儿童的电子阴性全场电网膜图 (ffERG) 可以表明视,而不仅仅是先天性静止夜盲. 这一发现扩大了视力减弱的遗传视网膜疾病的诊断可能性.
科学领域:
- 眼科和视觉科学 眼科和视觉科学
- 遗传学和分子生物学
- 神经科学是一个神经科学.
背景情况:
- 全场电网膜图 (ffERG) 测量视网膜功能,a波反射光受体活性,b波反射双极细胞功能.
- 在儿科遗传性视网膜疾病中,电子阴性ffERG (b波 ≤ a波) 通常表明在成像正常时,先天性静止夜盲.
- 这种电子阴性模式对于缩小小儿视力丧失的差异诊断至关重要.
相关概念视频
Photoreceptors and Visual Pathways
6.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.5K
Anatomy of the Eyeball
7.6K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
7.6K


