A case of orbital tumor with very interesting clinical manifestations
Feb 25th
A case of orbital tumor with very interesting clinical manifestations
A middle aged woman came to me with the orbit CT image of her, and presented with the little pain at the lower rim of the left orbit. She complained that she felt ocular pain when she bent down to tie the shoelace and slept on the left side. The extra ocular and intra ocular had no signs of abnormalities except a little pain by pressing at the lower rim of the orbit.
I read the image report, and find a tumor in the orbit. See the image:
It is best probable that it is cavernous hemangioma. Cacernous hemangiomas are not a true tumor. They are benign, grow lowly, and usually become symptomatic in middle life. Most occur in middle aged women. They most often lie within the muscle cone, producing axial proptosis, hyperopia, and in many cases, choroidal folds. Unlike capilary hemangiomas, they do not tend to regress spintaneously. Surgical excision is usually successful and is indicated if the patient is symptomatic. The typical B-scan images have the diagnosis meaning of qualitation. The CT images have the diagnosis meaning of localization. Gamma knife and interventional therapy are gradually applied in clinical practice.
Finding a CAD software for rebuilding tri-dimension model from clinical instrument
Feb 23rd
I am trying to Find a CAD software for rebuilding tri-dimension model from clinical instrument.
I posted a question in a forum: CAD softwares for rebuilding tri-dimension model in linux
1. I want to gather data from a equipment. Perhaps content millions of data.
2.Rebuilt these data by math method.
3.Use software to reconstruct the data in two-dimensional graphics, tri-dimensional graphics is the best.
4.Choose another model and by some technique to collect the tri-dimensional shape, then use the same method to reconstruct it in computer.
5.Match them to see if they are fit.Are there any CAD for build tri-dimension model in linux?
There four answers:
1. There are lots of CAD programs for Linux. I’ve personally only used Qcad, which is 2D only, but have a look through the following links for more information; of these, some are non-free, some 2D and some 3D, while some may be in various stages of completion/usefulness, but Google can point you to lots of other examples besides these:
http://www.linux.org/apps/all/Graphics/CAD/CAM.html
http://www.roseindia.net/linux/linux-cad-software.shtml
http://www.cycas.de/I found Qcad by Google + trial&error,
and found it to be somewhat complicated, but ultimately fairly decent.As to which, if any, program will fit *all* of your needs, I cannot comment. You might need to break the job(s) into sections, which then can each be dealt with by the most appropriately suited application.
2. Is the data analysis for the wavefront and corneal topography units on your sig’s link? If you are doing that kind of work, you might want to look at maxima or macsyma or whatever they’re calling themselves these days, or a commercial program such as Mathematica.
3. Free 3D CAD software :
http://www.craftsmanspace.com/resour…-software.htmlBRL-CAD 7.14.8
http://freshmeat.net/projects/brl-cad
4. If you know how the data points are arranged, it shouldn’t be hard to reconstruct an image. For example, topography images often are radii and heights at evenly spaced angles with underlying polar coordinates rather than cartesian triplets. The data set usually is grouped by each ring of data points. You can use the 3D plotting routines of any of the programs mentioned to reconstruct the image.
Patients: Why I feel different brightness in my both eyes?
Feb 23rd
A middle aged man came to me and said:’Doctor, I cannot see clearly?’. I glanced at his visual acuity record: both eyes were 1.0. In order to exclude whether his feeling was true or false,
I asked him: ‘Do you feel different in your eyes or one eye is darker than another?’.
The patient answered:’Yes, sir, I feel a little darker than before ‘.
I checked the fundus of his eyes. The macular fovea reflex cannot be observed. So I told him to take a ZEISS OCT exam to confirm what the macular disease was.
The pictorial documents are:
You could see serous detachment between the sensory retinal and PRE layer. The disease name is called central serous chorioretinopathy(CSC). The darker zone is the focal leakage of fluid from the choriocapillaris defect in the retinal pigment epithelium.
I asked him:’Are you stressed in daily life or sleep less ?’. He replied:’Yeah, sir, I always stay up late’. I asked him not to stay up late any more, and have a good rest.
As we know, approximately 80% of patients with CSC undergo spontaneous resorption of subretinal fluid and recovery of normal visual acuity within 6 months. The Argon laser photocoagulation would short the duration of the sensory detachment and hastens the revcory of central vision.
March, is the Allergic Season
Feb 23rd
March, is the Allergic season
There are more and more patients with allergic symptoms in our clinical outpatient. March, a getting warm season, also a allergic season.
Allergic conjunctivitis is the most often seen in this season. Patients always feel severe itching, generalized hyperemia, moderate tearing, minimal exudation, none preauricular adenopathy, eosinophils in stained scrapings and exudates and never associated sore throat or fever.
The types are three as follows:
1. Immediate hypersensitivity reactions. Those contain hay fever conjunctivitis(pollens, grasses, animal danders,etc), vernal keratoconjunctivitis, atopic keratoconjunctivitis and giant papillary conjunctivitis which caused by wearing contact lens, especially soft contact lens and attendance.
2. Delayed hypersensitivity reactions. This consists of phylctenulosis and mild conjunctivitis secondary to contact blepharitis.
3. Autoimmune disease. This include keratoconjunctivitis sicca associated with Sjogren’s syndrome and cicatricial pemphigoid. Sjogren’s syndrome typically presents dry eye and mouth.
Six Surgical Techniques for openning Orbit
Feb 21st
Six Surgical Techniques to access to Orbit
1. Baylis Technique (Transcaruncular Approach)
2. Lynch Technique (Medial Cutneous Approach)
3. Swinging eyelid (Inferior Fornix Approach to the Orbital Floor)
4. Upper Eyelid Cease Approach
5. Coronal Approach for Orbital Reconstruction
6. PS. From nose. Endoscopic Approach. Usually access to medial orbial wall and Inferior Fornix Approach to the Orbital Floor. No skin scars.
European Society of Cataract and Refractive Surgeons Winter Meeting
Feb 21st
European Society of Cataract and Refractive Surgeons Winter Meeting
Various types of stromal support for endothelial grafts evaluated in study
New ablation mode compares favorably with previous mode
New lens combining refractive and diffractive designs shows promise
Oblique side cut penetrating femto-keratoplasty shows good results
Accommodation should not be confused with the ability to see at near, surgeon says
Amniotic membrane extract proving safe, effective in treatment of corneal epithelial defects
Fully automated phaco system reduces ultrasound, cell loss
New lens proves safe in combined cataract-vitrectomy procedures
Intracorneal lens performs well in presbyopic patients
Microkeratome allows safe, accurate, predictable thin-flap LASIK
Liquid bandage provides protection against pathogens after surgery
Microincision diffractive IOL has smooth transitions between optical zones
Femtosecond laser procedure shows good results in presbyopic patients
IOL provides a new approach to presbyopia, multifocality
Telescopic mirror implant may help improve vision in AMD patients
Accommodating IOL imitates the natural lens in size, geometry and design
Long-term study confirms good results, maintenance of accommodation with IOL
Multiple European clinics report promising accommodating IOL visual outcomes
Prophylaxis with intracameral cefuroxime continues to prove effective in preventing endophthalmitis
Dual optic IOL shows long-term steady accommodation
OCT-assisted anterior segment surgery safe, accurate
Three top keywords of this website
Feb 20th
Three top keywords of this website are:
‘ophthalmology wordpress’
‘optometry wordpress’
‘ophthalmology optometry wordpress’
The results are all in top five.
When you search ‘ophthalmology wordpress’, you will find…
When you search ‘optometry wordpress’, you will find…
When you search ‘ophthalmology optometry wordpress’, you will find…
Is that interesting?