Age (years) | 90 | | 78 | | 72 | | 65 |
Sex | Female | | Female | | Male | | Male |
Race | Chinese | | Chinese | | Indian | | Indian |
Number of family members staying with patient | 0 | | 4 | | 1 | | 1 |
Ophthalmic diagnoses | Both eyes: glaucoma, cataract | | Right eye: pseudophakic, left eye: cataract | | Both eyes: glaucoma with superior arcuate visual field defect | | Right eye: clinically significant macular oedema, posterior capsule opacity, left eye: cataract |
Visual acuity | Right eye 20/60, left eye hand motion | | Right eye 20/100, left eye 20/60 | | Right eye 20/30, left eye 20/40 | | Right eye 20/60, left eye 20/100 |
Duration of symptoms | 1 year | | 2 months | | 1.5 years | | 1 year |
Frequency of symptoms | Daily | | Daily | | Every 2–3 days | | 1–2 times per week |
Duration of each episode | 5 minutes–1 hour | | Seconds | | Seconds | | 5 minutes |
Change in frequency of hallucination | Same | | Stopped | | Increased | | Increased |
Hallucinations | Children, Indian worker, corpse | | Half body of a handsome male, flowers | | People, animals, sheets and handkerchiefs | | Man, dog, spectacles, and cup |
Size compared to normal objects | Normal | | Normal | | Smaller | | Normal |
Coloured image | Yes | | Yes | | Yes | | Yes |
Solid/transparent | Solid | | Solid | | Variable | | Solid |
Movement of images | Yes | | No | | Yes | | Yes |
Clarity of image compared to normal images | Clearer | | Clearer | | Less clear | | Same |
Recurrent image | Yes | | No | | Yes | | No |
Always occurs in same region of visual field | No | | No | | No | | No |
Occurs only in worse seeing eye | No | | No | | No | | No |
Triggering factors | Watching television, eating | | None | | Watching television | | None |
Actions that stop hallucinations | None | | Turn on lights | | None | | Approach object |
Emotional reaction | Angry | | Angry | | Previously worried, now no reaction | | No reaction |
Discussed with family members | Yes | | Yes | | Yes | | No |
Reaction of family members | Supportive | | Supportive | | “It’s your imagination” | | – |
Discussed with doctor | No | | No | | Yes | | No |
Reaction of doctor | – | | – | | “Laughed and recommended no further action” | | – |