You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Diplopia is not a presenting feature in: and explain in detail?
C i.e. Latent squint Hetrophoria or latent strabismus is a condition in which there is a tendency to misalignment of the visual axis, which is corrected by the fusional capacity. Often latent squints give no trouble until the demand of near vision increase the strain. No symptoms arise, perhaps, until after reading or writing for an hour or two when the letter seems to run together'. There diplopia, which is often not appreciated as actual double vision, causes blurring of the print. With effo, blurring is overcome, but eventually this becomes impossible, headache supervenes & the work has to be abandoned. Anisometropia presents with - imperfect binocular vision, amblyopia, squint & diplopia (Basak p-68).