What is the fine-grained topic of the following text: When Srinu Maddula, an 18-month old baby from West Godavari district of Andhra Pradesh with defective eyesight was brought to a Rotary Club eye camp in Vijayawada in 1980s, the ophthalmologists diagnosed a rare disease that had affected the kid’s cornea. Only return the topic.
Diagnosis of a rare corneal disease in an infant at a Rotary Club eye camp in 1980s Andhra Pradesh.