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Hello, Thank you for the question.I am Dr.A.S.Desai and I look forward to assisting you .
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I need a small clarification here- When you say that " the warping is on the nasl side very close to the normal blind spot" , does it mean during a visual field test? Because normally we do not appreciate the blind spot except during a visual field test.
No, I simply noticed that strait lines are bowed during normal activity. The bowing only occurs near the blind spot... no where else in the visual field.
I would suggest that you get an Amsler grid test done( It is a self test which you can do at home after getting the grid sheets from your ophthalmologist). If there is significant deviation of the lines from normal then it is better to get an opinion of a retina specialist.
I have see those on the web, after printing and following the directions, I've determined that typically the warping effect is slightly outside of the typical grid pattern, at the distance suggested. There doesn't appear to be any distortion of the pattern itself.
A visual field test can be done to know if there is any peripheral visual field loss/abnormality. Though most of the times macular ( centre of the retina) lesions are detected on dilated fundus exam ( dilated eye exam), the macula might appear normal or almost normal in case of early age related macular degeneration or a thin epiretinal membrane. These conditions can be easily diagnosed with OCT(optical coherence tomography) test which is a non-invasive office procedure.
Wouldn't the laser treatment invalidate the results of the visual field test?
Not really. Only extensive laser given to the entire periphery as in case of PRP(panretinal photocoagulation for diabetic retinopathy) can cause a constriction of the visual field. You have had focal laser to a small area in one eye only. So that would not explain the visual distortion in both eyes.
One of the possibilities is that of a peripheral floater due to posterior vitreous detachment(PVD). Such a floater is not picked up on eye exam but likely to be causing the visual distortion.
Ok, thanks, ***** ***** track of the distortion and give my ophthalmologist a visit if I notice anything changing. I'll also ask about having the OCT test performed my next visit. I suppose that my main worry is that there might have been some odd condition that may have been overlooked during an routine exam which could have been caught very early. (I do tend to pay more attention to my vision than most poeple)
Thanks again for your help.
You are most welcome. Have a good day!