Lybrate.com has top trusted Ophthalmologists from across India. You will find Ophthalmologists with more than 32 years of experience on Lybrate.com. You can find Ophthalmologists online in Kolkata and from across India. View the profile of medical specialists and their reviews from other patients to make an informed decision.
Book Clinic Appointment
Eye Muscle Surgeries
Lasik Surgery Treatment
Reduced Vision Treatment
Retina And Lasik Surgery
Treatment of Squint
Visual Field Testing
Age-Related Macular Degeneration Treatment
Diabetic Retinopathy Lasers
Endoscopic Dcr Procedure
Laser Refractive Surgery
Laser Cataract Surgery
Submit a review for Dr. Shiv Nath DasYour feedback matters!
I have asked a question to ophthalmologist on 2nd Oct 2015, about floaters in both the eyes. I have not received the reply yet. It seems its not curable. Am I right?
Sir if my eye power vision increase at -0.5 to 1.5 then it is possible to recover at normal power? I mean glasses can remove.
I suffer from sneeze every morning. I dn know you only in the morning. I eyes get red and watery. Why so?
I have red eyes for over 3 days. What should I do? I think it might be due to the fact that I sleep less these days or it might be that it's the time that my eyes need spectacles.
I have eye infection last 3 days. What I do? This infection are every week on my eyes 1 month in 2/3 time.
I met an cycle accident and right down my eyes bulged and what I do to recover the same. It had bulged more. Please give any measures to recover this problem.
I have allergy in my eyes every evening after my full day work on computer and in market. Can you help me.
Hello Sir ! I am 24 in age. Since I was in 13, I have been using power glass yet. I have eye problem as I have Myopia. I always put on my glass. So sir please suggest me. What will I do to remove my glass and see perfectly without using glass.
I had a injury in my right eye and retina was damaged and done Operation on my childhood after that I didn't got my vision I able to see blurred nly it is possible to retain my vision back.
I have rubbed my left eye for two hours it has now become red what precautions do I need to take care.
Any patient who needs to undergo cataract surgery must be evaluated in a thorough manner so as to establish the requirement, appropriateness, expected surgical problems, expected benefits and co-morbid conditions having an influence on cataract surgery.
The preoperative assessment consists of -
A test for your existing glasses prescription:
It is useful for your cataract surgeon to know your existing glasses prescription in cases where there is a high refractive error (people who are very short or long sighted), in order to plan to correct this error after cataract surgery.
A full ocular examination: This includes looking at:
- The eyelid anatomy and inflammation.
- The state of the tear film, dry eye changes could make surgery difficult
- The presence of abnormalities in the cornea that could make visualisation of the cataract difficult during surgery.
- The amount of dilation the iris undergoes with dilating drops.
- The type of cataract. Soft cataracts can be aspirated. Hard cataracts need more ultra-sound energy and surgical time to break up and remove. White cataracts may need trypan blue staining to visualize the capsule
- The measurement of intra-ocular pressure. With this test, we aim to exclude glaucoma and ensure optimal control of immediate pre-operative and intra-operative eye pressures often with extra eye drops that temporarily lower eye pressure.
Biometry Tests: This is a simple pre-operative measurement. It calculates the correct power of artificial intra-ocular lens. They will be implanted into your eye once your cataract is removed.
Corneal Topography: This is a test to map out the corneal curvature in greater detail. It is used prior to premium IOL Implantation like Toric IOLS either monofocal or multifocal , to ensure avoid postoperative refractive errors. This extra test is only required if the biometry readings show larger than normal differences in keratometry readings.
Optical Coherence Tomography (OCT): This test allows detailed visualisation of the macula (the central sensitive part of the retina used for fine vision). If the ophthalmologist suspects any macula changes that may prevent a patient from visual improvement after cataract surgery, he always suggest optical coherence tomography.
Blood Pressure Measurements: It is very important to know your blood pressure measurements before your cataract operation. The risk of having a bleed at the back of your eye during cataract surgery (supra-choroidal haemorrhage) is very small (1 in 10000). But is higher if you have uncontrolled blood pressure.
Blood Sugar Measurements in Diabetic Patients: Cataract surgery itself does not affect your blood sugar measurements if you are diabetic. A routine checkup of blood sugars in diabetics before cataract surgery is done and the surgery if often delayed if the levels were greater than 20mmol/L as the risk of post-operative infection is higher.