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Hi I am a 26 year old female. I am experiencing redness in my right eye with no irritation, itching but a little heaviness since yesterday. I tried using the Tear drops eye drop yesterday and the redness reduced considerably by night, but after I woke up this morning again the redness was there like it never reduced. Please advise medication for the same.
The eyes are such a complex structure that even minute changes in the extremely complicated internal structure affects the most important function of the eye, vision. And anyone with a vision problem can vouch for the extent of effect it has on the quality of life. Whether you are able to see only things at a close distance or far off, it is definitely difficult.
The good news, however, is that with the thorough understanding of the eye’s structure, these abnormalities can be corrected and absolutely normal vision can be restored. While surgery was the only mode of correction a few decades ago, but laser has come to rescue, especially in intricate structures like the eye.
LASIK is an abbreviation for laser in-situ keratomileusis. This is the most common and popular method to correct vision in errors of refraction. In all these conditions (as below), the cornea which is the clear portion in the front of the eye is affected.
The light passes through the cornea, lens and falls on the back of the eye ( retina), where an image is created, sent to the brain where it is reversed, and this is what we ‘see.’ Each of these parts have to be in perfect condition in order to produce this proper sight. Errors of refraction fall into three main categories.
- Nearsightedness: There is difficulty in seeing far off objects, so road signs and boards are difficult to follow. Seeing objects that are closer is not affected. Most important cause is excessive staring into computer monitors.
- Farsightedness: The person has difficulty seeing things that are nearby and has to hold them at a distance for clarity.
- Astigmatism: Light rays merge to focus on multiple points either in front of or behind the retina. Normally, however, they should focus on a single point on the retina. There could be blurred vision, squinting, and eye strain.
What is done?
During the laser surgical procedure, ultraviolet laser beam is directed at the cornea. It is reshaped - made thinner in nearsightedness, elongated in farsightedness, and restoring the normal shape in astigmatism. This ensures that light is focused properly on the retina, producing sharp images and restoring vision.
- Success rate as high as 96% - most patients no longer need the glasses or contacts they were using earlier
- Minimal pain
- Immediate correction of vision
- No stitches required
- Further adjustments to vision using glasses or contact lenses can be made if required
While errors in refraction are extremely common, there is no reason to panic. Corrective measures are also available, which can restore an almost normal vision.
In case you have a concern or query you can always consult an expert & get answers to your questions!
Hi sir as my eyes are becoming yellow and I can't sleep in night till 2'o clock. If I laid for sleeping early mean at 11 or 12 0'clock I can't sleep.
Considering lasik lasers (for eye glass removal) for their eye glass removal. One must read this as it has some serious implications/complications if done in haste.
There are lot of benefits by being myopic (eye power less than -3 d) and disadvantages in going for lasik laser in young age with low eye power.
You may never need glasses after 40 years (presbyopia) of age for reading if you use glasses or contact lens now instead of getting your glasses removed by lasik lasers (for powers less than - 3d and around -3d) but after lasers you may need the same so going for laser may keep you free from glass for roughly 15 to 20 years only. The myopia can come back even after lasik surgery.
There are variety of complications with lasik lasers like glare, halo and problem in colour contrast, dry eyes, problem in night vision, serious complications like corneal ectasia (may need corneal transplant) although advancement in lasers has minimized these issues still one should refrain from it since the percentage of side effects are highly underplayed
The disadvantages according to my experience outweighs the benefits in young age for those with low myopia (-3d) and considering the risks involved and amount of side effects associated with it which are highly under reported by the doctor.
Lasik operated emmetropic (having normal eye power) are not allowed in airforce, railways and army.
If you are young and advised for lasik in haste without giving due consideration about thickness of cornea, it may result in complications after 5 years and can affect rest of your life.
If you are having high eye power (more than -3d) then there are various issue which should be taken in consideration.
First and foremost, the corneal (outer membrane for eye) thickness must be measured by pachymetry. Indians have a thinner cornea around 400 to 450 micron as compared to western population (around 600 micron).
The critical thickness of cornea must be above 300 micron even after lasik lasers to avoid/minimize future complications.
Since laser burns the cornea, for removing every 1d of eye power, there is a reduction in 35 micron thickness in cornea.
Indians with average thickness of 400 to 450 micron thickness can only go upto 35*5= 175 micron reduction to ensure that their corneal thickness remains above crucial thickness of 300 micron.
So patients are advised to take a independent opinion from a experienced ophthalmologist preferably before going for lasik laser since procedure done on wrongly selected patient can lead to life long complication for the patient.
One can use contact lenses which have become quite advanced with time, if one does not want glasses. All that glitters is not gold and not every side effect can be predicted.
Consult online/take a second opinion on www. Lybrate. Com/arjunkumarsingh.
Doctor has done 50000 eye surgeries and has pioneered phaco surgery in undivided bihar in 1995 and was the second person to start phacoemusifications in eastern india.
The cornea is the transparent layer of the eye that acts as a protective shield. The cornea, in combination with the sclera, protects the eyes from various harmful microorganisms and particulate matter, including the harmful UV radiations (to some extent). The cornea is made up of three important layers, the Endothelium, Stroma, and the Epithelium.
- Endothelium: The inner layer of the cornea, the endothelium helps to maintain a clear vision by removing the excess fluid absorbed by the stroma. The mitochondria-rich single celled layer functions more like a pump.
- Stroma: The middle corneal layer is extremely thick (~90% of the total corneal thickness) and composed mainly of proteins and fluids. Like the endothelium, the stroma, too, plays a pivotal role in the normal eye vision.
- Epithelium: Being the outermost layer, the epithelium functions as a defensive shield, protecting the eyes from harmful germs, bacteria and any matter that can harm the eye. Most importantly, the epithelium absorbs the essential nutrients and oxygen (present in the tears). The cornea, thus, plays a pivotal role in the normal vision of the eye. However, an injury or an infection can interfere with the corneal functioning, affecting a person's vision as well as giving rise to other complications (the eyes may appear itchy, watery and red. There may also be light sensitivity).
Some of the common cornea problems include
- Keratitis: Injury or microbial (bacteria, virus or fungi) infiltration of the cornea can trigger this condition resulting in corneal infection and inflammation. Some of the symptoms characteristic of keratitis include extreme light sensitivity, blurred vision. The inflammation can also result in redness, pain (moderate to severe) and watery eyes. Antifungal, antiviral or steroidal eye drops may provide relief from the associated symptoms.
- Shingles (Herpes Zoster): This condition mainly affects people who have suffered from chickenpox. In some cases, the virus though inactive may still be present in the body (in the nerves). However, at a later period, certain factors may trigger its activation. Once active, the virus can affect different parts of the body, including the cornea. Shingles can cause corneal soreness and inflammation. Old people and those with a weak immunity are more likely to suffer from shingles. People with shingles may benefit from the administration of steroidal (tropical) and antiviral eye drops.
- Ocular Herpes: This is a viral infection triggered by Herpes Simplex Virus I (HSV I) or Herpes Simplex Virus II (HSV II) resulting in herpes of the cornea. The condition gives rise to corneal inflammation and sores. Here too, the patient can get some relief by using antiviral or steroidal eye drops.
- Keratoconus: This is a degenerative disorder of the cornea that results in thinning of the cornea. The condition can also alter the corneal shape, resulting in swelling, pain, and loss of vision (partial to complete, particularly the night vision).
- Fuchs' Dystrophy: This is a corneal dystrophy whereby the corneal endothelial cells break down at a slower rate than usual. As a result, the stroma may be waterlogged resulting in swelling and blurred vision.
In case you have a concern or query you can always consult an expert & get answers to your questions!