Improve the grammar of this text: File:US Navy 080812-N-9774H-106 Hospitalman Michael Hagglund, an optometrist technician embarked aboard the amphibious assault ship USS Kearsarge (LHD 3), uses an auto refractor to help determine eye prescriptions on a patient at Ju.jpg|A United States Navy optometrist technician using an autorefractor during a humanitarian assistance project in Nicaragua in 2008]]
File:US Navy 080812-N-9774H-106 Hospitalman Michael Hagglund, an optometric technician embarked aboard the amphibious assault ship USS Kearsarge (LHD 3), uses an auto refractor to help determine eye prescriptions on a patient at Ju.jpg|A United States Navy optometrist technician using an autorefractor during a humanitarian assistance project in Nicaragua in 2008]]