Refractive Error

Refractive errors are vision problems caused when the irregular shape of the cornea results in problems with the light focusing on the retina. The different types of refractive errors are myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia. Refractive errors can be corrected by using eyeglasses, contact lenses, and refractive surgery.

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All the answers published in this website are written by Verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

How to overcome eye strain caused by the overuse of computers?

Query: Hello doctor, I am a 35 year old woman, and I have tested 20/20 vision all my life. I believe I am experiencing eye strain from overuse of computer, but unfortunately, I cannot cut down on my computer use because it is integral to my profession. My symptom is a slightly blurry vision, which begins...  Read Full »


Dr. Pooja Bandivadekar

Answer: Hello, Welcome to icliniq.com. A 20/20 vision does not rule out a refractive error. A lot of people have small numbers or latent hyperopia. This usually can be made to manifest by cycloplegic refraction or by fogging. Small errors may need to be corrected if you use computers for a longer time. Also...  Read Full »

My right eye pains a lot and shows blind spots on doing any activity. What to do?

Query: Hello doctor, My right eye pains and I see blind spots while doing any activity. And I feel my brain and my eyes are not coordinating. I have vitamin B12 deficiency, for which I take injections.  Read Full »


Dr. Pooja Bandivadekar

Answer: Hello, Welcome to icliniq.com. Kindly get your refractive error checked, as it can cause both your symptoms. A retinal assessment will also be helpful. Can you please elaborate on the brain-eye coordination? Revert with more information to an eye care ophthalmologist online --> https://www.icli...  Read Full »

Will refractive error of the eye cause intense pain in the eye and head?

Query: Hi doctor, One of my close friends has been suffering from intense eye pain and headache for the past three to four days. She is taking Paracetamol 500 mg for headaches and using Lubricant eye drops for eye pain. But still, there is no relaxation from the pain. It might be that the spectacle power ...  Read Full »


Dr. Rahul Vaswani

Answer: Hello, Welcome to icliniq.com. Intense pain is never due to refractive error. Can you please send me a close-up picture of her eyes without the flash? So that I can guide you accordingly.  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 headaches consistently. Please help me.

Query: Hi doctor, I am a 24 year old male. I am having a headache for the past seven days. It remains the whole day and gets actuated just before sleep, while using a mobile phone and during the study. Pain is consistently spread across the scalp and is mild. For the past few days, I am taking treatment f...  Read Full »


Dr. Sagar Ramesh Makode

Answer: Hi, Welcome to icliniq.com. First dandruff treatment is not related to this. I guess your routine is the problem because such routine can lead to a constant headache and not good for health. You try to change it. Is there any stress or worries which trouble you? Do you find any blurring or difficu...  Read Full »

Is there any possibility of reducing eye power without using glasses?

Query: Hi doctor,I have -1.75 power in my right eye and the left eye is normal. Is there any possibility to reduce the power without glass? Can I reduce my eye power by doing any eye exercise and taking vitamin rich foods?  Read Full »


Dr. Vaibhev Mittal

Answer: Hi, Welcome to icliniq.com. There is no medication or food for improving eyesight or to get rid of glasses. If not interested in glasses then you can try contact lens or LASIK laser surgery. As your age is now 24 years, your number will not increase now whether you wear glasses or not as number be...  Read Full »

How to treat nystagmus?

Query: Hi doctor,I am 21 years old. I have a problem of nystagmus from birth. Due to this, I have a problem to see far objects. Please give me some suggestions regarding the treatment of nystagmus. I have attached the prescriptions of my doctor.  Read Full »


Dr. Pooja Bandivadekar

Answer: Hi, Welcome to icliniq.com. According to your papers (attachment removed to protect patient identity), your vision is well maintained and you have a small refractive error. Nystagmus can be of various types based on its intensity and frequency. The management is decided by the intensity of nystagmus...  Read Full »

What are the other causes of headaches than stress?

Query: Hi doctor, I am almost 18 and ever since I was little I have had horrible headaches or migraines. Before, I used to get at least once in a week. If I sit in my dark closet, I feel like I am going to vomit or just bad enough. So, I do not want to get out of bed. I tried talking to my doctor about it ...  Read Full »


Dr. Salah Saad Shoman

Answer: Hi, Welcome to icliniq.com. You need to exclude the physical causes of headaches. You might have an error of refraction, so you need your eyes checked. You need to measure your blood pressure, as you might have irregularities of blood pressure. You should get your blood sugar measured as hypoglyc...  Read Full »

What causes transient tunnel vision?

Query: Hi doctor,I have a question regarding my daughter, who has complained about her eyes for three days. I want to make sure it is not an emergency and that I am not under-reacting. Sudden symptoms started three days ago. The on and off complaints of pressure around might be behind the eyes. She says, ...  Read Full »


Dr. Asha Barboza

Answer: Hello, Welcome to cliniq.com. Thanks for your query. I understand your concern. The tunnel vision you mentioned indicates that some vascular component is at play. It is not easy to pinpoint an exact diagnosis without examining her eye. The symptoms of generalized eye discomfort could indicate some e...  Read Full »

I have a low vision in my right eye with number -18. Can it be cured?

Query: Hi doctor, I am a 28 year old female. I have a low vision in my right eye with number -18. Can it be cured? What are the chances that it will come to my next generation?  Read Full »


Dr. David J Mathew

Answer: Hi, Welcome to icliniq.com. From what you have described, you have a high myopic refractive error (minus 18 diopter) in the right eye. I am assuming that the vision in your left eye is normal. If it is not, then please let me know. The right eye is likely to be amblyopic that is it did not receive e...  Read Full »

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