611 W. Union Street
Benson, AZ 85602
(520) 586-0800

Health Choice Integrated Care crisis Line
1-877-756-4090

NurseWise 24-Hour Crisis Line
1-866-495-6735

NAZCARE Warm Line
1-888-404-5530



SEABHS
611 W. Union Street
Benson, AZ 85602
(520) 586-0800

NurseWise 24-Hr Crisis Line
1-866-495-6735

NAZCARE Warm Line
1-888-404-5530


powered by centersite dot net

Getting Started
Here are some forms to get started. These can be printed and brought with you so that you can pre-fill out some known info ahead of time. More...


Health Sciences
Resources
Basic InformationLatest News
Regular Exercise Slows Decline Even in Advanced Parkinson's DzBrain-Computer Link Restores Some Movement to Quadraplegic ManScientists Spot Gene for Rare Disorder Causing Deafness, BlindnessNew Technology Makes Gene Mapping Cheaper, Faster: StudyTurning Back the Aging Clock -- in MiceNew Parkinson's Drug Xadago ApprovedBrain 'Rewires' to Work Around Early-Life BlindnessBrain Training for Cancer Survivors' Nerve DamageASA: Vagus Nerve Stimulation May Enhance Stroke RecoveryGene Therapy: A Breakthrough for Sickle Cell Anemia?Gene Therapy Shows Promise for Aggressive LymphomaThe Brain Can Produce Its Own Sugar: ReportCould Parkinson's Disease Raise Stroke Risk?NHL Veterans Pledge Their Brains to ResearchMRIs Can Be Safe for People With Heart Devices …Scientists Shed Light on Possible Cause of NearsightednessBrain Chip Helps Paralyzed 'Type' With Their MindDoes Mercury in Fish Play a Role in ALS?Repeat Head Hits May Not Put NFL Players at Risk of Motor ProblemsMRI Can Identify Early Signs of ASD in High-Risk InfantsEvidence of CTE Identified in Former Soccer PlayersSpace Reshapes Astronauts' Brains: StudyDiagnostic Potential for Blood-Based NfL in Parkinson's DiseaseIs It Parkinson's or Something Else? Blood Test Might Tell30 Former NFL Players Pledge Their Brains for ResearchAstronaut Twins Give Clues to Health Hazards of SpaceflightBrain-Computer Interface Lets Locked-In Patients CommunicateGene Discoveries Offer New Height InsightsBrain Scans Let 'Locked-In' ALS Patients CommunicateCaffeine Found to Reduce Age-Related InflammationfMRI May Be Better Way to Map Brain Prior to Epilepsy SurgeryVagus Nerve Might Play a Role in Fighting Inflammatory DiseaseBlood Levels of Meat-Linked Chemical Tied to Odds of Heart TroubleGSK3 Antagonists Promote Natural Tooth Repair in MiceScans Hint at Running's Brain Benefits, Even When YoungStudy Links Stuttering to Less Blood Flow in BrainRespiratory Muscle Strength Can Predict Survival in ALSNew Parkinson's Drug May Combat Movement DifficultiesPot May Restrict Blood Flow to Brain: StudyResearchers Develop Potential Oral Treatment for HemophiliaMouse Study Hints at Why Obese People Struggle to ExerciseArtists' Brushstrokes May Offer First Hints of Brain DiseaseWelders Showed Increased Risk of Parkinson-Like Symptoms in StudyExercise May Be Real Medicine for Parkinson's Disease'Groundbreaking' Research Offers Clues to Cause of DyslexiaDysglycemia Affects Brain Structure, Cognition in SeniorsStudy Finds Genetic Link Between Sleep Problems and ObesityMRI Helps Assess Fetal Brain Abnormalities: StudyDrones a Safe Way to Transport Blood: StudyFrequency of Multiple Molecular Diagnoses About 5 Percent
Questions and AnswersLinksBook Reviews
Related Topics

Medical Disorders
Mental Disorders
Mental Health Professions

Scientists Shed Light on Possible Cause of Nearsightedness

HealthDay News
by -- Robert Preidt
Updated: Feb 21st 2017

new article illustration

TUESDAY, Feb. 21, 2017 (HealthDay News) -- Whether you're nearsighted or not might come down to one particular type of cell in your retina, a new mouse study suggests.

Researchers from Northwestern University's Feinberg School of Medicine in Chicago report that this cell is highly sensitive to light and controls how the eye develops.

If it malfunctions and tells the eye to grow for too long, images don't get focused in the retina as they should be, the researchers said.

"The eye needs to stop growing at precisely the right time during childhood," said lead investigator Greg Schwartz, an assistant professor of ophthalmology.

"But for years no one knew what cell carried the signal," he explained in a university news release. "We potentially found the key missing link, which is the cell that actually does that task and the neural circuit that enables this important visual function."

The study was conducted in mice and the findings were published in the Feb. 20 print issue of the journal Current Biology.

The researchers next want to identify a gene that is specific to this cell, so they can turn its activity up or down in a mouse model. That would allow them to see if they might be able to trigger or cure nearsightedness, or myopia, Schwartz's team said.

"This discovery could lead to a new therapeutic target to control myopia," said Schwartz, whose work is funded by the U.S. National Institutes of Health.

But animal studies don't always produce similar results in humans.

More than 1 billion people worldwide are nearsighted, and that number is rising. Nearsightedness has been linked to too much time spent indoors and not enough time spent in natural light, , the researchers said.

More information

The U.S. National Eye Institute has more on myopia.