Condition which makes seeing in low light or at night difficult, also called night blindness.

• A. Nocturnal blindness.
• B. Amblyopia.
• C. Photopsia.
• D. Nyctalopia.

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the definition of the condition described. The problem states difficulty seeing in low light or at night, which is a key symptom to identify the correct medical term.
2. Step 2: Review each option's meaning: 'Nocturnal blindness' is a lay term for night blindness; 'Amblyopia' refers to decreased vision in one eye due to abnormal visual development; 'Photopsia' means seeing flashes of light; 'Nyctalopia' is the medical term for night blindness.
3. Step 3: Recognize that 'Nyctalopia' specifically refers to the medical condition characterized by difficulty seeing in dim light or at night, making it the precise term for night blindness.
4. Step 4: Differentiate 'Nyctalopia' from similar terms by focusing on the symptom of impaired night vision, which is not the primary feature of the other options.
5. Step 5: Conclude that the correct medical terminology for night blindness is 'Nyctalopia' based on the symptom description and definitions.