Greetings,
The duration required to become an ophthalmologist (eye doctor), gynecologist, and orthopedic doctor in India:
Ophthalmologist (Eye Doctor)

• MBBS (Bachelor of Medicine, Bachelor of Surgery): 5.5 years (including 1 year of internship)
• MD/MS in Ophthalmology: 3 years
• Total Duration: Approximately 8.5 years
  
  Gynecologist
• MBBS (Bachelor of Medicine, Bachelor of Surgery): 5.5 years (including 1 year of internship)
• MD/MS in Obstetrics and Gynecology: 3 years
• Total Duration: Approximately 8.5 years
  
  Orthopedic Doctor (Orthopedic Surgeon)
• MBBS (Bachelor of Medicine, Bachelor of Surgery): 5.5 years (including 1 year of internship)
• MS in Orthopedics: 3 years
• Total Duration: Approximately 8.5 years.
  
  I hope it helps.