Cylindrical Eye Power

If a person is said to have cylindrical eye power, they have what is known as astigmatism, a refractive error. It means that the correction required is unequal in different meridians of the eye. So, they will need a spectacle lens with a cylinder power correction in addition to the spherical power correction.

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Is it normal to have blurry vision while seeing faraway and nearby objects?

Query: Hello doctorI wondered whether it is possible to be short and long-sighted at the same time. For example, I wear contact lenses or glasses for short-sightedness. Still, when I do not wear them, I also find that things close to me are also blurred (my entire vision seems to be blurry instead of befor...  Read Full »


Dr. Gargi Madhukar Apte

Answer: Hi, Welcome to icliniq.com. I have read your query carefully. You mentioned you are having short-sightedness, but you have not said it is a spherical or cylindrical axis. If you have cylinder correction (with the axis mentioned), what you are experiencing is possible, and I am sure your eyes are ...  Read Full »

My 4-year-old daughter has cylindrical power of 0.75 and 2.5. What could be the reason?

Query: Hi doctor, My four-year-old daughter had her first eye test. I was shocked to see that she had cylindrical power in her eyes. The left eye had a power of 0.75, and the right eye had a power of 2.5. Both are cylindrical, and there is no spherical power in the eyes. The doctor checked her vision, ...  Read Full »


Dr. Hussein Mohamed Sherif Ahmed Ayoub

Answer: Hello, Welcome to icliniq.com. Did she see 6 / 12 with or without glasses correction? No, that is not normal for her age. For her age, she should see 6 / 6 with both eyes, but given that she has a cylinder (a condition we call astigmatism) and has never worn glasses before, she might be amblyopic...  Read Full »

Is it normal to not have a /6 vision for a 4-years-old child?

Query: Hello doctor, My son is almost 4-years-old. I got his routine eyesight check-up with dilation today. From the right eye, he could not read the last three lines even with the lenses they put to check vision, and his number is cylindrical minus 2.5. From the left eye, he could see 6/7.5, and his numbe...  Read Full »


Dr. Shikha

Answer: Hi, Welcome to icliniq.com. I can understand your concern about your son. The good news is it is detected early. It can be a lazy eye, but the normal adult vision of 6/6 comes at six years, which may also be a reason for low vision. But yes, whatever cylindrical power comes, he must use spectacles b...  Read Full »

Kindly suggest whether my eye power fits with my state medical test criteria?

Query: Hi doctor, I am attaching my eye prescription. I am also attaching my medical test criteria for state police service rank. Please mention whether I meet the given eye power.   Read Full »


Dr. Shachi Dwivedi

Answer: Hi,Welcome to icliniq.com.On seeing your criteria and test results, you are having a combined power of -4.50 including cylinder. It does not fit your prescribed criteria. I suggest you do a dilated refraction to know your exact power and also do a color vision test.   Read Full »

Is it a must to wear glasses all the time for cylindrical power of -0.5 and -1.25?

Query: Hi doctor, I have a cylindrical eye power for ten months. Initially, my power was -0.5 in my right and -0.75 in my left eyes. But now, in my right eye, there is an eye power of -0.5 on an axis of 180 and in my left eye, there is an eye power of -1.25 on an axis of 180. Do I need to wear glasses all...  Read Full »


Dr. Asif Manzoor

Answer: Hi, Welcome to icliniq.com. First of all, a cylindrical change from -0.75 to -1.25 will not occur and most probably it occurs due to interobserver variation. Usually, a refractive error will not show changes after 20 to 22 years of age. As you are 27 years of age, there is very little chance t...  Read Full »

I have blurred vision while using a contact lens. Why?

Query: Hi doctor, My eye power for the glass on the left eye is cyl - 0.75 with 10 axis and on the right eye is cyl - 2 with 170 axis. I am using contact lenses. But, I have a problem when I insert the lenses. I feel blurred vision in the left eye. I am using contact lens with power cyl - 1.75 with 170 axi...  Read Full »


Dr. Asif Manzoor

Answer: Hi, Welcome to icliniq.com. Actually, with contact lenses this problem happens when there is a cylindrical power because axis should be correct. In a cylindrical contact lens, there is a marker on it that should be at 6 o'clock. If a contact lens is rotated during applying, then it will cause proble...  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 icliniq.com. 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 »

Are spherical numbers of -4 and -2.5 concerning in a 4-year-old kid?

Query: Hello doctor, Please find the eye report of my 4-year-old son. He is not getting much issues in walking, in long-distance reading and in anything, but in the eye test report he got -4 and -2.5 spherical numbers in the eyes. Is it a very serious number? I am very tensed as I thought - 4 is a very bi...  Read Full »


Dr. Manjunath Natarajan

Answer: Hello, Welcome to icliniq.com. I have gone through your attached photo. (attachment removed to protect patient identity). There are both spherical and cylindrical powers in both of his eyes. This power is large for a 4-year-old boy and I understand your concern. Regarding the cause, the given a...  Read Full »

What causes cylindrical eye power to change rapidly?

Query: Hello doctor,I am 25 years old and I use spectacles from the last three years. Before that, my eyes were fine. In the last two years, it is deteriorating fast and the cylindrical eyesight varies much. Initially, it was - 0.5, but after one year it became - 1.5 and now it is 2.5. Why is my cylindric...  Read Full »


Dr. Rahul Vaswani

Answer: Hello, Welcome to icliniq.com. An increase in the cylindrical error at this age is uncommon. There are two possibilities: Your cornea is weak and changing its shape which is known as keratoconus. But, keratoconus does not appear in this age. It is basically a disease in children. There is a possib...  Read Full »

What is cylindrical eye power?

Query: Hi doctor, My son is 4 years and 10 months old. He has -2.5 cylindrical power in both the eyes. Is it possible for his eyesight to recover? Is this a serious condition at this age? Can it be improved with a diet? Are there any precautions I must take? Could it be due to excessive use of phones and ...  Read Full »


Dr. Bachar Khoury

Answer: Hello, Welcome to icliniq.com. Unfortunately, his eyesight will not return to normal. But his vision can be corrected with a LASIK surgery after he turns 18. It is not a serious condition. It cannot be improved with diet. You can ensure he takes breaks when reading and watching television. For more ...  Read Full »

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