Doctor insights on:
What Is The Worst Vision You Can Have
Check your state:
"visual acuity screening standard is 20/40 or better with both eyes together, no worse than 20/70 in the poorer eye. Drivers who fail the vision screening are referred to a vision specialist.
Drivers with visual acuity of 20/200 or worse may not be licensed to drive. Drivers may use bioptic telescopes for driving, but may not use them to meet the vision standard". ...Read more
Varies by State: Most states set a limit of 20/40 in the best eye for their limit. There is some variation by each state. Check with your department of motor vehicles for the rules in your state. ...Read more
Eye parameters: The level of vision is not the criteria used for lasik evaluation. It is a combination of the refractive error (numbers like -6.00 on your eyeglass prescription) and the thickness of the front of the eye. Other factors include general health, age and history of eye disease. Check with your ophthalmologists for suitability or with the lasik surgeon you have chosen. ...Read more
Field loss: Cushing's is due to a pituitary tumor that causes the body to secrete excess steroid. If the tumor is large enough, it can squeeze on the optic nerve with loss of vision. Prolonged steroid levels in the body can also cause cataracts and glaucoma. These are the major effects of this condition on the eyes. ...Read more
Hi dr. My vision got worst significantly over the past 6 month and now I seem to be unable to see fast object which happen resently this week!!
Vision: You must see an eye doctor as soon as possible. ...Read more
My sister had cryptococcal minigitis when she was young and it caused her to lose 30% of her vision. Fast forward and now she's 28 and her vision is getting worst. My question is who could help her or any new technologies out there to help her?
Vision Loss: Best for her to see an Opthamologist to see what her options are ...Read more
No: This is a common misconception. Wearing glasses to correct refractive error does not make your vision worse or increase your refractive error over time. Refractive error is an imbalance between the length of your eye and it's optical power. Glasses simply compensate for that imbalance. ...Read more
Please help! What is the worst your vision can be before you laser surgery is no longer an option?
Form of vision loss: Visual impairment is the loss of vision from some disease, trauma or degeneration that cannot be corrected by glasses, medication or surgery. In the us we use different terms to signify the degree of impairment such as "low vision", "legally blind" and "totally blind". These are defined by how good the best corrected vision is as well as how much of the peripheral vision is intact. ...Read more
I had my eyes examined recently and it seems my left has actually improved in vision when it was my worst and weakest eye. Is this possible?
Absolutely, visual: Acuity is primarily determined by the curvature of cornea, the 6 extraocular muscles (which pull to rotate the eye), the shape of the lens (behind the iris) and intraocular pressure so as to focus light rays on the fovea centralis portion of the retina combined with light receptor density. Thus there are multiple interacting factors which can change, both quickly & over time, to change focus. ...Read more
My left eye has been red for around 5 days, but my right is fine. The vision on my left eye is a little worst these few days, what's wrong? No allergies
An exam helpful: Red eye without comment on pain, but worsening vision makes me wonder about low grade inflammation, perhaps asymmetrical dryness or allergy. The latter two usually feel scratchy, dry, or itchy. With your arthritis like systemic history, i'd wonder whether you have an anterior uveitis. An exam is necessary for you and I recommend seeing an ophthalmologist. ...Read more
Dizziness. Flying with a plane. More dizzy, headache, pain in ears, blurry vision. This is all the time. If I climb somewhere high it get's worst.
Labyrinth iris: You seem to be having a vestibular problem. I would seek care from a neurologist or ENT ...Read more
Sudden blurry vision with waves in it and now worst head ache of my life. I have a clotting disorder. Should I go to the ER or wait it out.
I have a irregular period but its worst then before, I also have pain on my left side, cramps in my stomach, back pain, blurred vision and headache.
Common problem: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections ; hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test. There are many options available to help regulate the menstrual cycle. Schedule a visit. ...Read more
I got 3 wisdom teeth removed 2 days ago. I now have the worst headache ever. It's affecting my head, jaw, face, eyes. Blurry vision. Is this normal?
Depends: These are levels of vision that still indicate good and useful vision. If you are used to 20/20 vision and you have a drops to 20/30 or 20/40 (uncorrectable) then it may seem bad to you. In my state of washington, the break point for a driver's license is a vision level of 20/40, so the state does not consider this 'bad'. ...Read more
Depends on type: Color vision defect is usually hereditary but can be affected by various meds including some anti-inflammatories, cancer agents, blood pressure meds, pr even aftergastric bypass. In addition recreational drugs can also be problematic. There are other eye diseases that can cause defects. ...Read more
Migraine: You are probably experiencing occipital migraine. You can confirm this by seeing if the same things occurs in each eye when you cover one and then the other. These usually are short lasting (5 min to 2 hours) and cause no permanent changes. If this test does not work as I have indicated, then see your ophthalmologist for a better diagnosis. ...Read more
Pixels: Rods and cones are individual cells packed into the retina as a carpet of light receptive capacity. They sum their input to put together a nerve input to the brain which is the site of actual image formation. Rods have less tight packing but greater sensitivity. Cones are packed very tightly and perceive fine detail and color. You should love your rods and cones. ...Read more
Considera que es: Para obtener más respuestas de más médicos, considere volver a enviar usando la función de traducción al inglés. **For more responses from more doctors, consider resubmitting using English translation feature. ...Read more
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