A first eye consultation involves six or seven separate steps, and most patients are never told what any of them are for. You get moved from chair to chair, drops go in, machines flash, and eventually a doctor gives you a verdict. Here is the same visit described from the inside, so you know what is being looked for at each stage and roughly how long you will be with us.
Before you arrive
Five minutes of preparation saves twenty minutes in the building.
- Bring your current spectacles and the old pair. The rate at which your power has changed is often more informative than today's number.
- Bring every eye drop you use, including the ones bought at a chemist. Lubricants, steroids and glaucoma drops all change what we see.
- Bring your sugar and BP records if you are diabetic or hypertensive. HbA1c matters for a retina examination.
- Arrange a way home. If your eyes are dilated, you should not drive.
- Skip contact lenses for a few days before a refractive surgery assessment. Soft lenses distort corneal measurements; rigid lenses distort them for longer.
The first twenty minutes: numbers before opinions
An optometrist works through a fixed sequence before the doctor sees you. None of it is filler.
- Visual acuity. The letter chart, each eye separately, with and without your glasses. The gap between those two readings tells us whether your problem is optical or something behind the optics.
- Autorefraction and subjective refraction. A machine estimates your power, then a human refines it by asking which lens looks clearer. The machine is a starting point, never the final prescription.
- Intraocular pressure. A quick puff or a contact tonometer. High pressure is the main modifiable risk factor in glaucoma, and glaucoma causes no symptoms until the damage is well advanced. This is the test that most often finds something the patient did not come in for.
- Slit lamp examination. A microscope with a bright slit of light. This shows the lids, the tear film, the cornea, the anterior chamber and the lens. Most cataracts and most dry eye are diagnosed at this stage, before any scan.
If you have come only for a spectacle prescription and everything above is normal, your visit can end here in about thirty minutes.
Dilation, and why we insist on it
Dilating drops widen the pupil so the retina can be examined properly. Without them, we are looking at the back of the eye through a keyhole and we will miss things at the periphery, which is exactly where retinal tears and early diabetic changes like to sit.
What to expect: the drops sting for a second, take 30 to 45 minutes to work fully, and leave you light-sensitive and unable to focus up close for four to six hours. Some people take longer, particularly those with dark irises or diabetes.
We do not dilate everyone. If you have a very narrow drainage angle, dilating carries a small risk of an acute pressure rise, so we assess the angle first. If you have come for a same-day matter where you must drive afterwards, we will discuss whether dilation can wait for the next visit. Say so at the desk rather than after the drops are in.
Scans, and when they are actually needed
Imaging is not part of a routine check. It is ordered when the examination raises a specific question, and each machine answers a different one.
- OCT gives a cross-section of the retina, layer by layer. It is how macular swelling, macular holes and early glaucoma nerve fibre loss are quantified. It is also how we track whether treatment is working, which is why the second scan matters as much as the first.
- Optos ultra-widefield imaging photographs a very large area of the retina in one shot, useful in diabetic screening and in following peripheral lesions over time.
- Humphrey visual field testing maps your functional field of vision. Slow, tiring, and irreplaceable in glaucoma. First results are often unreliable simply because the test is unfamiliar, so we frequently repeat it.
- IOLMaster 700 and ARGOS biometry measure the eye precisely before cataract surgery to calculate the lens power we will implant. Get this wrong and you wear glasses afterwards for a reason that had nothing to do with the surgery.
- Corneal topography and tomography map the shape and thickness of the cornea. These decide eligibility for SILK and LASIK and detect keratoconus.
If a scan is suggested, it is fair to ask what decision will change depending on the result. If the answer is nothing, you do not need it that day.
The consultation itself
By the time you sit in front of the doctor, they already have your numbers, your images and your history. That is deliberate. The consultation is for examination and explanation, not for data collection.
Three things should happen before you leave the room:
- A name for the problem, in plain language, or an honest statement that we are not yet sure and what the next step is to find out.
- The options, including doing nothing. Watchful waiting is a legitimate plan for early cataract, for most floaters and for many small refractive changes. If a treatment is optional, you should hear the word optional.
- A specific next date. "Come back if it gets worse" is not a follow-up plan. "Six months, and sooner if you see flashes or a curtain" is.
If you are handed a scan and you did not follow the explanation, ask again. It is a two-minute conversation and it prevents a month of worry.
How long the whole thing takes
A spectacle check without dilation: 30 to 45 minutes. A full first consultation with dilation: 90 minutes to two hours. A refractive surgery workup, which involves the largest set of measurements: two to three hours, and you should plan for the eye to be dilated at the end of it.
Peak times are mid-morning on weekdays. Our KPHB centre runs until 8:30 pm and our Warangal and Nalgonda centres are open seven days, which helps if a weekday is impossible.
If you have not had your eyes examined in the last two years, or you have diabetes and have skipped a year, book a comprehensive eye examination at the centre nearest you and set aside the full two hours. Most visits end with reassurance, and the ones that do not are far better caught now.
