Final answer:
The described condition with recurrent bilateral conjunctivitis, cobblestone papillae, and symptoms appearing with hot weather in young boys is vernal conjunctivitis, which is a type of allergic conjunctivitis. It is not explicitly listed among the provided options, but it is related to conjunctivitis. Option a.
Step-by-step explanation:
A recurrent bilateral conjunctivitis occurring with the onset of hot weather in young boys, characterized by symptoms of burning, itching, lacrimation, and large flat-topped cobblestone papillae, raised areas in the palpebral conjunctiva is known as vernal conjunctivitis. It is a type of allergic conjunctivitis that is not listed among the provided options, which are general conditions affecting the eye such as conjunctivitis, keratitis, cataract, and glaucoma. However, based on the symptoms provided in the question, which most closely resemble allergic reactions, the likely mistaken option in the list for vernal conjunctivitis would be conjunctivitis (option 1), but specifically, it should be identified as vernal conjunctivitis. Option a.