Eye Supervision Academy

The rotational movements of intorsion and extorsion are necessary to keep a viewed object stable and positioned on the appropriate part of the retina as the head is tilted from side to side. To illustrate imagine standing upright and looking at an arrow that is pointing superiorly.  Now tilt your head 45 degrees to the right, does the arrow move with your head? Now point at a 45 degree angle, hopefully not. Because of intorsion and extortion the arrow should still appear to be pointing superiorly. In this case the right eye has been intowarded and the left eye has been equivalently extorted so that the image falls on the same part of the retina as before the head tilt. Obviously our eye has a limited range of intorsion and extorsion. They cannot spin completely around within the orbit. And if we were to stand on our head the arrow would appear to change direction and appear to point inferiorly. Now, lets look at the movements produced by each of the extra oculum muscles. Medial and...

When the brain fails to interpret and processing of visual information is known as  Visual Perception Dysfunction .  Visual Perception Visual perception dysfunction is not tested using an eye chart. The ability to read the 20/20 row does not mean a person is free of visual perception deficits.  Visual perceptual deficits can affect day to day activities  as well as academic performance including sports and also  in areas such as reading and math. Commonly individuals with visual perceptual deficits are encouraged to “work harder” or to “try harder”. Disorders of Visual Perception Treatments: Unfortunately, individuals do not outgrow visual perceptual dysfunction and cannot overcome them by simply working harder.  Visual perception, or visual processing dysfunction, refers to deficits in the ability to make sense of information that is taken in through the eyes. Visual perceptual skills involve the ability to  interpret and organize  the informatio...

Orbital Cysts Orbital cysts  is presented as a painless swelling in the lateral angle of an orbit which gradually increases in size. Usually there is no pain over the swelling. On examination the swelling can be globular in shape, fluctulant and non-transilluminate. Factors which shows signs of orbital cysts: The overlying skin stays free.  The cysts indents on pressure. There is bony indendation at the margin of the orbit around the swelling. Diagnosis and other possibilities: It may be: Sebaceous cyst Meningocele Lipoma  Fibroma Neurofibroma Dermoid cyst occur at the lines of embryonic fusion, whereas sebaceous cyst may occur at any site. Dermoid cyst lies in subcutaneous tissue and is free from the skin.  Dermoid Cysts The sebaceous cyst lies deep to the epidermis and the skin is usually fixed  to the cyst and there is usually punctum over the skin. Now if you are suffering from Meningocele your symptoms will be: Presence of cough impulse Bony gap is palpab...

What is AMD? Age Related macular degeneration also known as AMD is the most common form of blindness in the world. It is characterized by a blurred and darkened central vision. So what symptoms you should be looking for? and when is the time to seek medical help?  To clear our concept, lets begin with the anatomy of the eye: So, the most relevant structures are the retina, the retinal blood vessels and the choroid. The retina lines the back of the eye and has many layers. It is mainly responsible for receiving and converting light into a chemical signal. The choroid contains blood vessels to provide nourishment and oxygen to the retina. The exact root cause of the AMD is still largely unknown and is currently a large area in opthalmology research.  What we know is that this disease starts with lipid and protein accumulation that leads to the formation of solid deposits under the retina. These are known as druzen. When the disease progresses to a more severe form something caus...

Life can be complicated, even more when one has an eye disfigured from injury, birth defect and trauma affecting their appearance. Fortunately, Prosthetic contact lenses can mask these flaws and improve the appearance of an eye. Prosthetic lenses not only provide a natural look. But they can block excess light from reaching the back of the eye to reduce glare and increase comfort.  Prosthetic contacts can be pre-made with a trial set or by ordering custom-painted contact lenses. They function like any gas permeable contact lens for greater durability, in some cases better vision, and a longer life span. For more information about prosthetic contact lenses, schedule a consultation with an optometrist/opthalmologist today. When do you need prosthetic contact lenses? Here are some conditions when you will need prosthetic contact lens.  If your eye disfigures and you feel nervous to confront people, then this is for you. You can take the support of prosthetic contact lenses. This ...

In this blog I am going to share vision therapy exercises which anyone can do easily at home. So let's get started.. Before performing this exercises you should have a comprehensive binocular vision exam to find any vision issues that you might have. It is also recommended to perform these exercises with a licensed optometrist about licensed therapists. Exercising your eyes is a lot like exercising your other muscles. Our eyes and our brain can be trained to get stronger performing eye exercises over a period of time. Focusing exercise which will train our eyes focusing ability to help us focus more efficiently for longer periods of time while reading a book or working on the computer. Equipments needed for the exercise: Any of the three objects will work: Detailed sticker on a stick. Pencil with small writing on it. Reading material with small print.   Eye patch. Distance glasses (If glasses are normally worn). Steps for Set Up: Wear an eye patch over one eye or close one eye...

Coloboma is a problem which occurs in the back of the eye. It is a lack of the fusion of the elements of the optic nerve, the retina or anteriorly into the iris and the lens. It can be in the front of the eye which means we can get a coloboma in the iris from the lack of fusion.  A typical iris coloboma is in the inpharaoh nestled quadrant. The abnormally developed sphincter extends to the base of the iris and hence results in an ectopic pupil. A collabo mattes lens is due to defective or absent segments of zhonya's resulting in a notch in the lens. It is a misnomer in that there is no actual lenticular substance missing intact, so news are often seen in this area. It may occur along with the ciliary body coloboma. Cataract often develops at a younger age in coloba matis lenses. The extent of the ocular structures affected by the coloboma should be determined preoperatively. The degree of posterior segment involvement should be confirmed by B scan preoperative IOL power assessment ...