TearLog tracks your symptoms, your drops and your environment, then shows you which treatments really move your OSDI score and which ones you are paying for out of habit.
Launching on iPhone this fall. One email when it is ready, nothing else.
The shelf is full of drop timers. None of them answer the question you actually have.
The Ocular Surface Disease Index is the standard questionnaire your eye doctor uses. Answer it weekly and watch one number instead of guessing at a vague sense of better.
Preservative-free drops, gels, ointments, warm compresses and lid hygiene, each on its own schedule, with the spacing that preservative-free bottles need.
Start a new treatment and TearLog watches your score for the weeks that follow, then tells you plainly whether it moved and by how much.
Long screen days, dry air and poor air quality all make dry eye worse. TearLog pulls those in automatically and shows how much each one costs you.
The bad days, with what you were doing and where you were. Enough detail to spot the pattern without turning logging into a chore.
Your OSDI trend, what you have tried, what helped and what did not, on one page. Useful whether you are asking about IPL or arguing with an insurer.
Drops, masks, supplements, punctal plugs, in-office procedures. Most dry eye patients try several at once, then never find out which one was doing the work.
No account required. Your symptom scores, treatments and diary entries live on your device, not on our servers.
Related reading: what a good OSDI score is, and how to use it to judge a treatment · what causes dry eyes · meibomian gland dysfunction and warm compresses
The questions people search most about dry eye. General wellness information, not medical advice.
Most commonly evaporative dry eye, where the oil layer produced by the meibomian glands along the lid margin fails and tears evaporate too quickly. The other mechanism is reduced tear production. Screens, medications, age, hormonal change, contact lenses and dry environments all contribute.
The tear film is the first surface light passes through, so when it breaks up between blinks the image blurs slightly, then sharpens again when you blink. That come-and-go blur while reading or on a screen is a characteristic dry eye symptom and is often reported as a vision problem instead.
Under 13 is generally considered normal. 13 to 22 is mild, 23 to 32 moderate, and 33 or above severe. It runs from 0 to 100 and higher means worse symptoms. It measures how much your eyes bother you, not what an examination finds.
You can score symptoms with the OSDI questionnaire and repeat it weekly to judge whether a treatment is helping. You cannot diagnose the cause at home, since tear film break-up, gland structure and surface damage all require an eye examination.
Because in most cases the problem is a failing oil layer rather than a lack of water, so adding water relieves symptoms briefly and then evaporates. This is why gland-directed measures such as warm compresses and lid hygiene are often recommended alongside drops.
Same-day care for sudden vision change, eye pain, marked light sensitivity or discharge. Otherwise book an appointment if symptoms persist despite over-the-counter drops, or if dryness comes alongside dry mouth, joint pain or fatigue, which can point to an underlying autoimmune condition.
TearLog is in development now. Leave your email and we will tell you the day it reaches the App Store.
Launching on iPhone this fall.