Timeline for Why do I see three 'beams' when I look to a distant light source at dark?
Current License: CC BY-SA 3.0
19 events
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| Jan 13, 2018 at 9:11 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 13, 2018 at 8:01 | comment | added | Ng Chung Tak | @JimGarrison I think astigmatism is the most probable here. | |
| Jan 13, 2018 at 5:28 | comment | added | Jim Garrison | Mild cataracts (is it identical in both eyes?) plus astigmatism would account for this easily. | |
| Jan 12, 2018 at 17:59 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 17:50 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 17:43 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 17:42 | comment | added | Tho Re | Let us continue this discussion in chat. | |
| Jan 12, 2018 at 17:36 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 17:32 | comment | added | Tho Re | I think starbursting might actually be the right hint | |
| Jan 12, 2018 at 17:31 | comment | added | Tho Re | @NgChungTak Have you actually seen the effect that I describe in the OP with your own eyes? | |
| Jan 12, 2018 at 17:22 | comment | added | Ng Chung Tak | I'm not an optometrist or medical doctor to ensure whether is due to imperfection of your cornea or simply astigmatism. It's unlikely due to diffraction (by optical instruments). Perhaps, it's due to glare – light scattering due to dirty or impure optical materials in your eyes. Would you like to refer the picture in this link? | |
| Jan 12, 2018 at 17:13 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 17:06 | comment | added | Tho Re | @NgChungTak Your answer and the wikipedia page you link are quite nice. But I cannot see where it is explained, that I - and I believe others too - see three spikes instead of four. Unless you wanna say that my eyeballs are supported by three mounts!? | |
| Jan 12, 2018 at 14:58 | comment | added | Ng Chung Tak | Because I've short-sight and astigmatism, my vision (with spectacles) at night is also spiky. | |
| Jan 12, 2018 at 14:55 | comment | added | Bort | Any idea about direct viewing (not through a camera?) | |
| Jan 12, 2018 at 14:22 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 14:09 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 13:57 | history | edited | Ng Chung Tak | CC BY-SA 3.0 |
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| Jan 12, 2018 at 13:48 | history | answered | Ng Chung Tak | CC BY-SA 3.0 |