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i'm myopic when i drive i use -4 when i use netbook i use -2 (yes, text still look sharp) while reading using phone, i use 4 (google plus lens therapy) some o
by brokenrib 11y ago
i'm myopic
when i drive i use -4
when i use netbook i use -2 (yes, text still look sharp)
while reading using phone, i use 4 (google plus lens therapy)
some observations:
i can use -2 during daylight riding motorcycle, at night, it's blurry and i have to use -4 to have clear vision ... so, sunlight can help myopia by 2 diopters
as screen brightness increases, the farther i can move my android facing me while retaining same level of clarity
you don't have to use the same diopter whole day (like wearing contacts). you can use different diopter based on your need.
- QuercusMax 11y agoMakes sense; if you have a smaller aperture, you get better depth of field. When is brighter out, your pupils contract, reducing the aperture. Basic photography/optics principles.
- kaybe 11y agoIf you have no glasses with you, make a tiny hole with your hand and look through that. It only works with sufficient light, but should give a fairly focussed impression, eg for when you want to check the clock in the pool.