hemeralopia

/,heməræ'loupiə/

Thân thiện

A person with hemeralopia shields their eyes from the sun.

Definition

1. Noun:
   • A visual impairment characterized by the inability to see clearly in bright light: Hemeralopia is a condition of the eyes where vision is normal or near-normal in dim light but becomes poor, blurry, or uncomfortable in well-lit conditions or daylight.

Usage Examples

• Noun:
  • The patient's hemeralopia made driving during the day particularly difficult.
  • Sunglasses can help alleviate some discomfort for individuals with hemeralopia.

Advanced Usage

• Medical Context: Hemeralopia is often discussed in contrast to nyctalopia (night blindness). While nyctalopia is poor vision in low light, hemeralopia specifically refers to poor vision in bright light.
  • The ophthalmologist diagnosed the condition as hemeralopia after noting the patient's severe photophobia.

Variants and Related Words

• Photophobia (n): An abnormal sensitivity or intolerance to light, which is a common symptom of hemeralopia and other conditions.
  • The hemeralopia was accompanied by intense photophobia.

Synonyms

• Day blindness: A less formal, descriptive synonym for hemeralopia.

Notes on Meaning

• Hemeralopia is a specific medical term. It is not a general term for any vision problem in light but refers to a particular type of visual dysfunction. It is sometimes confused with, but is the opposite of, "nyctalopia" (night blindness).

Học thuật

Noun

1. inability to see clearly in bright light

Từ đồng nghĩa

• day blindness