Increased lens swelling

During the development of cataract, individual patients swell because the lens absorbs too much water, which increases the volume of the lens, hinders the flow of aqueous humor, and causes the internal pressure to rise. Patients may experience severe pain in the eye, accompanied by nausea and vomiting. Such symptoms are medically referred to as secondary glaucoma during the swell of the lens. Glaucoma caused by lens swelling is glaucoma associated with intumescent cataract, which refers to glaucoma that occurs during the expansion of senile cataracts or turbid swelling after external lens injuries.