Hihy Health
Encyclopedia

Cataract

#cataract, #lens, #vision loss, #presbyopia, #macular degeneration, #phacoemulsification, #intraocular lens, #multifocal lens, #blurry vision, #difficulty seeing, #cloudy vision, #double vision, #overlapping images

A cataract is a condition in which the lens inside the eye, which acts like a camera lens, becomes cloudy and vision declines. Aging is the most common cause. If your vision is blurry or dim, please consult an eye specialist (ophthalmologist).

2026-06-26

Cerebral Aneurysm

#cerebral aneurysm, #subarachnoid hemorrhage, #headache, #cerebral blood vessels, #coil embolization, #surgical clipping, #brain hemorrhage, #MRA, #CTA, #head pain, #splitting headache, #migraine, #pain at the back of the head, #double vision, #overlapping images

A cerebral aneurysm is a condition in which the wall of a blood vessel in the brain becomes abnormally thin and bulges outward. Before it ruptures, it usually causes no symptoms and is sometimes found by chance during a health checkup. Because a rupture can become a life-threatening emergency, people with risk factors are advised to talk with their doctor about regular screening. If a health checkup shows an abnormal finding, please consult a neurosurgery specialist, and if a sudden, severe headache occurs, seek immediate medical attention at an emergency room.

2026-06-26

Headache

#Headache, #Migraine, #Tension-type headache, #Cerebral hemorrhage, #Stress, #Sleep disorder, #Caffeine, #Neurology, #Head pain, #Splitting headache, #Pain at the back of the head, #Weakness in arms or legs, #One-sided weakness, #Seeing double, #Overlapping vision, #Trouble falling asleep, #Waking up often, #Not sleeping deeply

Headache is a common symptom that almost anyone can experience, but it can also be a sign of a brain condition or a nervous system problem. If you find yourself relying too heavily on pain relievers to get rid of headaches, or if headaches are interfering with daily life, please don't try to judge the cause yourself — see a medical specialist.

2026-06-26

Iron Deficiency Anemia

#anemia, #iron deficiency anemia, #iron, #hemoglobin, #iron supplement, #fatigue, #pallor, #dizziness, #women of childbearing age, #fainting, #loss of consciousness, #syncope, #low energy, #lethargy, #persistent tiredness, #indigestion, #bloating, #upset stomach, #loose stools, #watery diarrhea, #frequent bowel movements, #constipation, #difficulty passing stool, #hard stool, #double vision, #overlapping vision

Iron deficiency anemia is a condition in which a lack of iron in the body leads to a shortage of red blood cells. Common symptoms include pallor, fatigue, dizziness, and shortness of breath during exercise. It occurs especially frequently in women of childbearing age. If anemia persists for a long time, it can place strain on the heart, so identifying the cause and receiving appropriate treatment is important. If you suspect these symptoms, please consult a hematology-oncology specialist.

2026-06-26

Kidney Transplant Process

#kidney transplantation, #kidney transplant, #living-donor kidney transplantation, #deceased-donor kidney transplantation, #immunosuppressants, #rejection, #end-stage kidney failure, #KONOS, #organ transplantation, #double vision, #overlapping images

Kidney transplantation is a surgery that transplants a healthy kidney into the body to replace a kidney that has lost its function. Unlike dialysis, it can restore most of the kidney's various functions (removing waste products, regulating electrolytes, secreting hormones that stimulate blood cell production, and others), which makes it one of the main treatment options for end-stage kidney failure. Whether and how to have a transplant depends on each patient's health condition, so please be sure to decide through consultation with a medical specialist.

2026-06-26

Noise-Induced Hearing Loss

#noise-induced hearing loss, #earphones, #tinnitus, #cochlea, #hearing damage, #noise, #hearing, #headphones, #double vision, #overlapping images, #ringing in the ear, #noise in the ear, #cannot hear, #difficulty hearing

Noise-induced hearing loss is a condition in which hearing is damaged by loud, sustained sound exposure. It once occurred mainly in industrial workplaces, but it is now increasing among teenagers and young adults as the use of personal audio devices such as earphones grows. There is currently no treatment that restores hearing once it has been damaged, so prevention is most important. If your hearing declines or you develop tinnitus, please consult an ENT specialist.

2026-06-26

Pituitary Tumor

#pituitary gland, #pituitary tumor, #pituitary adenoma, #decreased vision, #visual field defect, #acromegaly, #Cushing's syndrome, #amenorrhea, #brain tumor, #blurry vision, #difficulty seeing, #hazy vision, #seeing double, #overlapping images

A pituitary tumor is a tumor that develops in the pituitary gland, a small organ in the middle of the brain. Most are benign tumors and are not cancer. As the tumor grows or hormone secretion is disrupted, various symptoms can appear, so if you have suspected symptoms, please consult a medical specialist.

2026-06-26

Strabismus

#strabismus, #exotropia, #esotropia, #intermittent exotropia, #amblyopia, #stereopsis (3D vision), #diplopia, #strabismus surgery, #head pain, #splitting headache, #migraine, #pain at the back of the head, #double vision, #overlapping images

Strabismus is an eye movement disorder in which the two eyes cannot look at the same point together. One eye may turn in a different direction, which can reduce the ability to see objects in three dimensions. If you suspect symptoms, please consult an eye specialist (ophthalmologist).

2026-06-26