Thygeson

For people living with TSPK

Gentle on
tired eyes.

Thygeson reminds you of your eye drops, lets you note how each eye feels, and turns it into a clear picture you can bring to your doctor.

Download on theApp StoreGet it onGoogle Play

No account · Your data stays on your phone · Open source

The Today screen: next drop at 20:00, with the day's drops on a timeline

How it works

Three small habits. That's all.

  1. 1

    Add your drops

    Name each drop or pill, which eye it is for, and the times you take it.

  2. 2

    Get a gentle nudge

    A reminder arrives at each time. Hold one button to log it, with undo if you slip.

  3. 3

    Check in when eyes feel off

    Calm, gritty, sore or flaring, for each eye. Flare-ups build themselves from that.

Journey

See your flare-ups coming and going.

Each day is split in two: your left eye and your right eye. Over a few weeks the colours tell the story, like which eye flares, how long it lasts and whether a new drop is helping.

Try it: tap or hover a day in this sample month.

November 2026

left | right eye

Mon 9 NovLeft eye gritty · Right eye flaring
  • calm
  • gritty
  • sore
  • flaring

A look inside

Quiet screens, made for sore eyes.

Dark and warm, with large type and nothing flashing at you. Swipe through.

TodayYour day as a timeline, with the next drop up front.
Check inCalm, gritty, sore or flaring, for each eye.
JourneyA month of how each eye felt, at a glance.
Any dayEvery drop and check-in for that day.
Doctor visitsQuestions to ask and what changed since last time.
Your dropsWhat you take, for which eye, and when.
Getting startedThree steps and you are set up.
Doctor visits: the next appointment, questions to ask, and a summary since the last visit

Doctor visits

Walk in with answers, not guesses.

Appointments are short, and it's hard to remember how the last six weeks went. Thygeson keeps it ready for you.

  • Questions to askJot them down when you think of them, and they are there at the visit.
  • Since your last visitFlare-ups, extra drops and missed drops, counted for you.
  • Share a summarySend your doctor a clear summary straight from your phone.

Privacy

Your eyes. Your data.

  • On your phoneDrops, check-ins and visits are stored on your device, not on our servers. We don't have any.
  • No accountOpen the app and start. No sign-up, no email, no password.
  • No ads, no trackingNothing counts your taps or sells your habits. Your health data is not a product.
  • Open sourceEvery line of the app is public on GitHub, so anyone can check these promises.

Read the source on GitHubPrivacy Policy

Questions

Good to know

What is Thygeson's?

Thygeson's superficial punctate keratitis (TSPK) is a rare eye condition that comes and goes. During a flare-up, small spots form on the surface of the eye, which can make it gritty, sore, watery and sensitive to light. Flare-ups are often treated with eye drops, which is where keeping track helps.

Does it replace my eye doctor?

No. Thygeson keeps a record of your drops and how your eyes felt so you can talk it through with your doctor. It does not diagnose anything or change your treatment. Always follow your doctor's advice.

Where is my data kept?

On your phone. There is no account and no server collecting it. You can make a backup yourself if you want to move to a new phone.

Which phones does it work on?

iPhone and iPad from the App Store, and Android phones from Google Play.

Look after your eyes, one drop at a time.

Thygeson is on iPhone, iPad and Android.

Download on theApp StoreGet it onGoogle Play