Medical Retina
The retina is the light-sensitive layer of tissue at the back of the inner eye. It acts like the film in a camera -- images come through the eye's lens and are focused on the retina. The retina then converts these images to electric signals and sends them via the optic nerve to the brain.
The retina is normally red due to its rich blood supply. An ophthalmoscope allows a health care provider to see through your pupil and lens to the retina. If the provider sees any changes in the color or appearance of the retina, it may indicate a disease.
Anyone who experiences changes in sharpness or color perception, flashes of lights, floaters, or distortion in vision should get a retinal examination.
Karthik Netralaya has a fully equipped specialty clinic to manage diabetic retinopaty and all other retinal disorders.
Diabetic retinopathy:
Diabetic Retinopathy is essentially damage to the retina of the eye. This occurs in patients who have been diagnosed with diabetes in the past and has some serious side effects. It can lead to problems with vision and in some extreme cases can even lead to blindness.
In some people with diabetic retinopathy, blood vessels may swell and leak fluid. In other people, abnormal new blood vessels grow on the surface of the retina. The retina is the light-sensitive tissue at the back of the eye. A healthy retina is necessary for good vision.
At first the changes in the vision may not be noticed, but over time, diabetic retinopathy can get worse and cause vision loss. Diabetic retinopathy usually affects both eyes.
Damaged retina due to diabetic retinopathy
Symptoms and Detection:
Many times, patients report no symptoms in the early stage of Diabetic Retinopathy. Patients experience following symptoms in the advance stage of this eye condition:
Visual changes due to Diabetic Retinopathy
Causes, incidence, and risk factors
Diabetic retinopathy is caused by damage to blood vessels of the retina. The retina is the layer of tissue at the back of the inner eye. It changes light and images that enter the eye into nerve signals that are sent to the brain.
There are two types, or stages of retinopathy: Nonproliferative or proliferative
Treatment for diabetic retinopathy?
The treatment of diabetic retinopathy is decided on the basis of the stage of the disease. In the very initial stages, it just requires periodic follow up to look for progression of disease. The ophthalmologist decides when to see a patient next depending upon the severity of changes in the retina.
Later when the disease is more advanced he/she may decide to treat it with laser. There are well-defined criteria for laser therapy. Laser therapy is done when there is significant maculopathy, or when there are significant new blood vessels in the retina or iris.
Surgery may be advised for managing the complications of diabetic retinopathy, like vitreous hemorrhage, retinal detachment.
Laser treatment
Most sight threatening complications of diabetic retinopathy can be prevented by laser treatment if given early enough. It involves focusing and applying laser spots on the retina. There are two types of laser treatments depending upon the type of retinopathy:
Diabetic maculopathy: This is treated be applying laser spots in the region of macula to seal the leaking blood vessels.
Proliferative diabetic retinopathy: This condition requires more extensive application of laser in a wider area of retina. It helps the abnormal new vessels to shrink and disappear. It may require more than one sitting to complete the treatment.
Vitreo Retinal Surgeries:
Vitreo Retinal surgery does not refer to one specific type of surgery. It refers to any surgical procedure that treats eye problems involving the retina, macula, and vitreous fluid. These vision disorders include macular degeneration, retinal detachment, and diabetic retinopathy.
Vitreo Retinal surgery can treat a detached retina, which happens due to a retinal tear. A retina may detach gradually or suddenly. Symptoms of retinal detachment may include flashes of light and spots that obstruct vision. Retinal detachment can occur due to an injury. It may also occur when the vitreous fluid pulls on the retina.
Eye surgery typically can correct a detached retina. An eye surgeon may use silicone oil or a bubble of gas to hold the retina in place. He can then use laser photocoagulation to attach the retina by sealing the blood vessels. A patient with a detached retina has a better chance of regaining lost vision if it is treated immediately.
Surgically managed retinal disorders:
The retina is normally red due to its rich blood supply. An ophthalmoscope allows a health care provider to see through your pupil and lens to the retina. If the provider sees any changes in the color or appearance of the retina, it may indicate a disease.Anyone who experiences changes in sharpness or color perception, flashes of lights, floaters, or distortion in vision should get a retinal examination.
Karthik Netralaya has a fully equipped specialty clinic to manage diabetic retinopaty and all other retinal disorders.
Diabetic retinopathy:
Diabetic Retinopathy is essentially damage to the retina of the eye. This occurs in patients who have been diagnosed with diabetes in the past and has some serious side effects. It can lead to problems with vision and in some extreme cases can even lead to blindness.In some people with diabetic retinopathy, blood vessels may swell and leak fluid. In other people, abnormal new blood vessels grow on the surface of the retina. The retina is the light-sensitive tissue at the back of the eye. A healthy retina is necessary for good vision.
At first the changes in the vision may not be noticed, but over time, diabetic retinopathy can get worse and cause vision loss. Diabetic retinopathy usually affects both eyes.
Damaged retina due to diabetic retinopathy
Symptoms and Detection:
Many times, patients report no symptoms in the early stage of Diabetic Retinopathy. Patients experience following symptoms in the advance stage of this eye condition:
- Fluctuating vision
- Eye floaters and spots
- Development of a scotoma or shadow in your field of view
- Blurry and/or distorted vision
- Corneal abnormalities such as slow healing of wounds due to corneal abrasions
- Double vision
- Eye pain
- Near vision problems unrelated to presbyopia
- Cataracts
Visual changes due to Diabetic Retinopathy
Causes, incidence, and risk factors
Diabetic retinopathy is caused by damage to blood vessels of the retina. The retina is the layer of tissue at the back of the inner eye. It changes light and images that enter the eye into nerve signals that are sent to the brain.
There are two types, or stages of retinopathy: Nonproliferative or proliferative
- Nonproliferative diabetic retinopathy develops first. Blood vessels in the eye become larger in certain spots (called microaneurysms). Blood vessels may also become blocked. There may be small amounts of bleeding (retinal hemorrhages), and fluid may leak into the retina. This can lead to noticeable problems with your eyesight.
- Proliferative retinopathy is the more advanced and severe form of the disease. New blood vessels start to grow in the eye. These new vessels are fragile and can bleed (hemorrhage). Small scars develop, both on the retina and in other parts of the eye (the vitreous). The end result is vision loss, as well as other problems.
- Macular edema -- the macula is the area of the retina that provides sharp vision straight in front of you. If fluid leaks into this area, your vision becomes more blurry.
- Retinal detachment -- scarring may cause part of the retina to pull away from the back of your eyeball.
- Glaucoma -- increased pressure in the eye is called glaucoma. If not treated, it can lead to blindness.
- Cataracts
Treatment for diabetic retinopathy?
The treatment of diabetic retinopathy is decided on the basis of the stage of the disease. In the very initial stages, it just requires periodic follow up to look for progression of disease. The ophthalmologist decides when to see a patient next depending upon the severity of changes in the retina.
Later when the disease is more advanced he/she may decide to treat it with laser. There are well-defined criteria for laser therapy. Laser therapy is done when there is significant maculopathy, or when there are significant new blood vessels in the retina or iris.
Surgery may be advised for managing the complications of diabetic retinopathy, like vitreous hemorrhage, retinal detachment.
Laser treatment
Most sight threatening complications of diabetic retinopathy can be prevented by laser treatment if given early enough. It involves focusing and applying laser spots on the retina. There are two types of laser treatments depending upon the type of retinopathy:
Diabetic maculopathy: This is treated be applying laser spots in the region of macula to seal the leaking blood vessels.
Proliferative diabetic retinopathy: This condition requires more extensive application of laser in a wider area of retina. It helps the abnormal new vessels to shrink and disappear. It may require more than one sitting to complete the treatment.
Vitreo Retinal Surgeries:
Vitreo Retinal surgery does not refer to one specific type of surgery. It refers to any surgical procedure that treats eye problems involving the retina, macula, and vitreous fluid. These vision disorders include macular degeneration, retinal detachment, and diabetic retinopathy.
Vitreo Retinal surgery can treat a detached retina, which happens due to a retinal tear. A retina may detach gradually or suddenly. Symptoms of retinal detachment may include flashes of light and spots that obstruct vision. Retinal detachment can occur due to an injury. It may also occur when the vitreous fluid pulls on the retina.
Eye surgery typically can correct a detached retina. An eye surgeon may use silicone oil or a bubble of gas to hold the retina in place. He can then use laser photocoagulation to attach the retina by sealing the blood vessels. A patient with a detached retina has a better chance of regaining lost vision if it is treated immediately.
Surgically managed retinal disorders:
- Retinal Detachment
- Intraocular Infection (Endophthalmitis)
- Diabetic macular edema
- Age-related macular degeneration
- Diabetic Retinopathy
- Macular Holes
- Vitrectomy
- Iridex green Laser with SL & IDO
- Iridex red diode Laser with TTT & EndoLaser
- 21 & 23 G BIOM assisted Vitrectomies
- Canon CF 1 digital FFA & color photography
- HRT 3 Scanning Laser Ophthalmoscopy
- Optovue Spectral OCT
- Sonomed B scan ultrasound & UBM
- Ophthalmodynamometry
- AntiVEGF pharmacotherapy
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