The optical spacer--a simple device which extends the scope of indirect ophthalmoscopy.
نویسنده
چکیده
A simple device is described which both facilitates and significantly extends the scope of indirect ophthalmoscopy.
منابع مشابه
The vascular factor in low tension glaucoma: alchemists' gold?
Finger blood flow in patients with low tension glaucoma and primary open-angle glaucoma T Usui, KIwata Controlled trial of laser photocoagulation ofpigment epithelial detachments in the elderly: 4 year reviewMJ Barondes, S Pagliarini, IH Chisholm, AM Hamilton, A C Bird Detection of subpigment epithelial neovascularisation in cases of retinal pigment epithelial detachments: a review of the Moorf...
متن کاملImprovement of light harvesting by inserting an optical spacer (ZnO) in polymer bulk heterojunction solar cells: A theoretical and experimental study
By introducing a thin ZnO layer as an optical spacer, we have demonstrated that inserting this layer between an active layer and a reflective electrode results in a re-distribution of the optical electric field inside bulk heterojunction solar cells. A theoretical analysis by optical modeling showed that the thin ZnO layer could shift the position of the maximum of the electric field into the a...
متن کاملSpectral-domain optical coherence tomography findings of subinternal limiting membrane hemorrhage in the macula before and after Nd:YAG laser treatment
We reported the spectral-domain optical coherence tomography (SD-OCT) findings of a subinternal limiting membrane hemorrhage in the macula in one patient with Valsalva retinopathy and in one patient with macroaneurysm before and after neodymium-doped yttrium aluminum garnet (Nd:YAG) laser membranotomy. Within 1 week, the Nd:YAG laser treatment facilitated rapid absorption of the hemorrhage in b...
متن کاملMiniature binocular indirect ophthalmoscope.
The optical principles of indirect ophthalmoscopy were mastered by Gullstrand (I 9 I I) although his ophthalmoscope did not achieve wide popularity because of its complexity and limited field of view. Schepens (I947) demonstrated his binocular indirect ophthalmoscope 2I years ago in the United States of America. The instrument described here is a further stage in simplification (Figs I and 2). ...
متن کاملSmartphone Fundus Photography
Smartphone fundus photography is a simple technique to obtain ocular fundus pictures using a smartphone camera and a conventional handheld indirect ophthalmoscopy lens. This technique is indispensable when picture documentation of optic nerve, retina, and retinal vessels is necessary but a fundus camera is not available. The main advantage of this technique is the widespread availability of sma...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The British journal of ophthalmology
دوره 76 1 شماره
صفحات -
تاریخ انتشار 1992