Corneal Topography

Corneal topography, also known as photokeratoscopy, is a non-invasive imaging technique used to map the cornea's anterior curvature. It can also be used in the early screening of keratoconus. The different methods used in corneal topography include Placido disc, scanning-slit, and Scheimpflug topography.

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What can cause blurry image, itchy eyes, and headache?

Query: Hi doctor,I have been having lots of trouble with my eyes lately. Reading glasses are not helping me. Everything has begun to get blurred. I have noticed that I have been rubbing my eyes a lot and I have been getting headaches. Please help.  Read Full »

Dr. Asif Manzoor

Answer: Hi, Welcome to Actually, there are many causes of decreased vision and itching for which you need to rub your eyes.Please answer a few questions. Since how long you are using glasses? When you had your last refraction?Do you have any eye allergy, itching, watering or redness that get wo...  Read Full »

I took a corneal topography for an issue in my right eye. Please help me interpret it.

Query: Hi doctor.I need help in reading my corneal topography result. Do I have keratoconus, and if yes, how bad is it? What does the 80 % normal mean? Can you please explain each number in the chart? Lastly, what are my treatment options?My right eye hurts every morning I wake up. I started seeing the dou...  Read Full »

Dr. Souhad Abdulhalim Lawand

Answer: Hello, Welcome to numbers on your keratotopography signify the thickness and the geometry of the cornea, meaning if the corneal surface is usually quite spherical in all its aspects, any areas with increased thickness in comparison to the other areas of that cornea are considered an ...  Read Full »

Does wearing glasses help to provide better vision for high myopic astigmatism?

Query: Hello, I visited my ophthalmologist and he didnt see anything wrong with my vision, but I, 16 years old who only suffers of myopia and astigmatism, have a very bad vision and difficulties to read just from 50 cm. This is what he wrote: Right eye 8/10 S +0,25 C -4.50 Ax 175 Left eye 8/10 S +0,25 C...  Read Full »

Dr. Asif Manzoor

Answer: Hi Welcome to icliniq. Your prescription shows you have High Myopic Astigmatism. Your ophthalmologist must have examined your eyes properly..Usually glasses prescriptions can changr upto age of 20-21 yrs so before that age no Laser procedure is done to get rid from glasses. So you need to wear gla...  Read Full »

Is keratoconus stage 1 in both eyes in a small kid curable?

Query: Hello doctor, My 5 years old daughter recently diagnosed with Keratoconus stage 1 in both the eyes with high cylindrical power. Is it curable? Does it lead to vision loss? And please let me know what are the best treatment options available for this disease. I am currently on Olopatadine 0.1% o...  Read Full »

Dr. Arnab Pal

Answer: Hello, Welcome to I am sorry to hear that she has been diagnosed as Keratoconus stage 1. However, I am surprised as the age is too low. It generally sets in adolescents with onset in early to mid-teens. I guess it is difficult for me to comment without seeing her topography pictur...  Read Full »

Does cornea get stronger with age?

Query: Hi doctor,I am 36 years old. I had LASIK before 13 years and I started getting cylindrical number after five years of LASIK. Now, my number is left eye -2.75 at 140 axis and right eye -5.5 at 40 axis. My left eye number has been stable for the last 5 years and my right eye number is stable for the...  Read Full »

Dr. Anand Yattinamani

Answer: Hi, Welcome to Getting cylinder power after LASIK surgery is not a good sign. What was your power before surgery? May be you had a thin cornea and after surgery it is likely that it may get bulged giving power again. Strictly avoid rubbing eyes and get corneal topography test. It is ver...  Read Full »

How to get rid of glasses?

Query: Hi doctor, I am 24 years old. I have vision problem. I am unable to read books for more than half an hour. Also, I am not able to read for 10 minutes in computer. In my right eye the cylindrical power is -1 at axis 130 and in the left eye the cylindrical power was -0.75 at axis 40. What is the best ...  Read Full »

Dr. Asif Manzoor

Answer: Hi, Welcome to You have got astigmatism. It can be corrected by glasses or contact lenses. If you want to get rid of glasses, then there are different laser procedures like PRK (photorefractive keratectomy) or Femto-Lasik surgery. They are very safe and simple procedures. But, for the ...  Read Full »

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