This digital version of the textbook published by Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology was produced and made available online by Global Sight Alliance, a part of Vision Outreach International. This comprehensive 137-page manual outlines how to perform Manual Small Incision Cataract Surgery (MSICS), which is an “alternative technique to instrumental phacoemulsification” that has a quicker healing process and does not require high-grade medical technology, making it beneficial to use in developing countries that do not have access to such equipment.