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It cannot be done with any precision.
With a near-average pupil size, an eye capable of good vision when corrected will have about 20-200 vision at -3.00 dioptres uncorrected, or 20-24 to 20-60 at -1.00 but a young person will not be nearly so badly affected with the equivalent + prescription.
Pupil size will make an enormous difference, the "pinhole-camera" effect. With a 1mm pinhole in a piece of card held near the eye, the vision can be surprisingly good, whatever the amount of missing correction.
With the contact lens correction in place, the vision will depend on the accuracy of the prescription and the optical and neurological quality of the eye. A needed -10 contact lens might give 20-20 vision, but an eye with cataract might have poor vision even if not needing any optical correction. A strong contact lens would not improve the situation but worsen it.
ANSWERS
There is no exact correlation because pupil size enters into it. The more light in the room the smaller the pupil and the better the vision for a given diopter. Only an approximation can be given. Also a plus diopter correction will affect visual acuity more than a minus diopter correction because of the way accommodation can neutralize some of the minus power. The younger the individual the greater the amount.
What else can I help you with?
How do you determine your uncorrected vision in terms of 20 X from your contact lens prescription?
I once ate an entire muffin threw my ears.
How do you determine your vision in terms of 20-X from your contact lens power in diopters?
It cannot be done with any precision.With a near-average pupil size, an eye capable of good vision when corrected will have about 20-200 vision at -3.00 dioptres uncorrected, or 20-24 to 20-60 at -1.00 but a young person will not be nearly so badly affected with the equivalent + prescription.Pupil size will make an enormous difference, the "pinhole-camera" effect. With a 1mm pinhole in a piece of card held near the eye, the vision can be surprisingly good, whatever the amount of missing correction.With the contact lens correction in place, the vision will depend on the accuracy of the prescription and the optical and neurological quality of the eye. A needed -10 contact lens might give 20-20 vision, but an eye with cataract might have poor vision even if not needing any optical correction. A strong contact lens would not improve the situation but worsen it.ANSWERSThere is no exact correlation because pupil size enters into it. The more light in the room the smaller the pupil and the better the vision for a given diopter. Only an approximation can be given. Also a plus diopter correction will affect visual acuity more than a minus diopter correction because of the way accommodation can neutralize some of the minus power. The younger the individual the greater the amount.
What is the conversion factor from lux to watt and how can it be used to determine the power consumption of a light source in terms of lux?
The conversion factor from lux to watt depends on the efficiency of the light source. It can be used to determine the power consumption of a light source in terms of lux by multiplying the lux value by the conversion factor to get the power consumption in watts.
What does nc and no mean in electrical terms?
nc: Normally Closed (contact is closed when power is not applied) no: Normally Open (contact is open when power is not applied) Applies to a relay ex...: when power is applied to a relay the no(Normally Open contact will close and allow current to flow between two terminals on relay).
Can a set income from an irrevocable trust be increased by the trustee of the trust?
You need to review the terms of the trust to determine the extent of the trustee's power.
What medical term describes a type of vision?
Hyperopia, myopia, and diplopia are some medical terms meaning a type of vision.
In terms of business what is vision?
It's where the company sees itself in the future.
Is a beneficiary required to accept any form of payment the trustee mandates from an trust?
You need to review the terms of the particular trust to determine how the beneficiaries are to be paid.You need to review the terms of the particular trust to determine how the beneficiaries are to be paid.You need to review the terms of the particular trust to determine how the beneficiaries are to be paid.You need to review the terms of the particular trust to determine how the beneficiaries are to be paid.
What are the contact terms for reaching customer support?
To reach customer support, you can use contact terms such as phone number, email address, live chat, or online contact form.
Does child support increase when it's my year to claim our my child?
You need to review your own child support order to determine the terms of your obligations.You need to review your own child support order to determine the terms of your obligations.You need to review your own child support order to determine the terms of your obligations.You need to review your own child support order to determine the terms of your obligations.
What is the order of epsilon in the given sequence?
The order of epsilon in a sequence refers to the smallest positive integer power of epsilon that appears in the terms of the sequence. It helps determine the rate at which the terms of the sequence approach zero as epsilon approaches zero.
What is 4.75 vision?
4.75 vision refers to a specific level of visual acuity measured in diopters, indicating that the individual is nearsighted (myopic) and requires corrective lenses for clear distance vision. The number can be understood as a prescription strength for glasses or contact lenses, where a higher negative number signifies a stronger correction needed for clarity at a distance. In practical terms, someone with 4.75 vision may struggle to see objects clearly beyond a certain distance without corrective eyewear.
