Melissa Valdellon

Patient case for July 21, 2023

Today’s case is a short one. The patient is a 38 year old Hispanic female who was last seen a year and a half ago for a diabetes eye exam. She had been correctable to 20/20-3 and 20/20-1 with a refraction of OD +0.25-2.00×005, OS plano DS. She comes in today saying she has blurred distance vision especially when driving at night and that she never filled the glasses prescription from last year and has never worn glasses ever.

As I mentioned, she has had diabetes since about 2003 with a latest HbA1c of 10.1 from 3 months ago. She also has diagnoses of anxiety and depression, migraine, vertigo, gastritis, and reports quitting smoking about 3 weeks prior. Her medications include albuterol, zyrtec and flonase, glipizide, metformin, and protonix. She has an allergy to eletriptan (she gets hives).

Confrontation testing of pupils, EOMs, visual fields are all normal. Incoming uncorrected visual acuity is OD 20/50-2, OS 20/25-2.

Retinoscopy shows OD plano -2.00 x 180, OS plano -0.50 x 180

Refraction shows OD -0.75 -1.25 x 175  20/25, OS -0.50 DS 20/25+2

Anterior segment shows some mild punctate erosions inferiorly of both eyes and is otherwise clear with IOPs of 13/13 mm Hg. Posterior segment of both eyes is clear of any pathology or DM retinopathy.

What would you prescribe for this patient? Do her visual acuities match her refraction results?

She had a myopic shift in her eyes compared to her last exam 1.5 years ago. Are you more or less willing to prescribe her glasses because of this shift?

The patient also reports her history of vertigo. Does this mean you should modify her prescription in any way? Considering she’s also never worn glasses in the past, would you modify her prescription any differently?

Let me know your thoughts!

Kale, tomato, celery, cucumber juice

This was a juice I made because I had some leftover veggies left around and I was going away on a short trip and wanted to make sure they didn’t go to waste. The juice that resulted was one of the more savory juices I’ve made. I’ll be honest, not my favorite concoction, but maybe if I tweak the combination, it’ll work out.

Still, just in case you’re interested, this is what went into this juice:

  • 4 leaves kale
  • tomato
  • 4 ribs celery
  • 2 cucumber

It wasn’t terrible, but it’s not my tastiest either so back to playing around with other juices for a bit… I’m hoping the next time I make something, I’ll be happily surprised instead.

Have you ever made a juice or smoothie that you didn’t think would work but ended up being tasty? I’d love to try new recipes if you want to share =)

Breathing

Strangely, I’ve had more instances in the last month where I’ve had to deal with more urgent or semi-urgent conditions that require extra handling and management. Usually, I get these cases every few months but in just the last few weeks, we’ve dealt with a macula-on RD, a hypertensive crisis (the patient was totally asymptomatic, yet his blood pressure was 210/162 when we read it), a kid with super angry looking marginal keratitis that had been cooking for at least a month before being seen, and a couple more things that definitely put me on a good adrenaline rush as I tried to coordinate the best care possible for these patients.

How do you stay calm in the middle of the crazy storm? Thankfully, the instances where you’ll have to deal with patient emergencies is likely not going to happen frequently, but there will be other times where things are just piling up and the stress keeps building around you and you find yourself needing to face it or be swept into the crazy yourself.

I don’t know about you, but engaging in a highly charged environment with energy that matches it means I’m going to be jumping in with irrational emotions and thoughts that will mean someone or something is going to get hurt, something’s going to be misunderstood or lost in translation, and plenty can and often does go wrong because we’ve made rash judgements and decisions.

So rather than jumping in right away unprepared, I take just a couple moments to pause and focus on my breath. Now, I’ve done a lot of meditation and yoga practice so I find that it’s not that hard for me to focus on my breathing, but this may be new to you. I would invite you to check on your breathing now as you read this. When you breathe in, do you feel any sensations? What part of your body is moving when you breathe? Do you breathe into your chest or deeper so that your stomach moves too?

One of the first things that happen physiologically when we’re under acute stress is our breathing goes shallow. As a result, our brains don’t get as much oxygen in the short term to adequately process what’s going on. We’re instead going off on instinct on how to best preserve ourselves in this highly charged situation. That’s helpful when something’s about to attack you. It’s not as helpful when you have to take care of someone else’s immediate health needs.

Even now, when my students come to me for consultations and they’re a bit flustered because their data doesn’t make sense or patients seem upset or something has shaken them out of their routine, I will stop the student and tell them to breathe. And I will breathe with the student a couple times just to get them more centered before letting them continue.

Those couple moments can be enough to reset the mind and make it aware that things are ok, there is no imminent danger, and now you can think a little bit more objectively about the situation at hand. If I’m in the middle of a high tension environment and I can’t step outside to collect myself, I do try to keep part of my focus engaged on my breathing even then, just to help  me stay more calm and grounded. I wrote more about breathing and its relation to stress in my book, Remembering to Breathe – there’s helpful information in there on how to build and maintain and healthy work/study-life balance.

Taking a few breaths for yourself is just as important as what you do next afterward. Get in the habit of periodically checking in on your breath throughout the day. Set your alarm to go off every hour for the next couple days as a reminder to check in on your breathing. Even if you don’t regularly practice meditation (and I don’t anymore, just to let you know), this practice of paying attention to your breath can be the way to begin practicing mindfulness, which is a skill that can translate into other areas of life.

Happy (deep) breathing.

Patient case for July 14, 2023

And now for something a little different. Today, let’s talk about a 47 year old Hispanic male who came in for a second visit. We first saw the patient 2 months prior for his diabetes eye exam. At that visit, he had reported blurred distance vision, OD>OS, and he doesn’t normally wear glasses.

He’s had DM2 for about 11 years and his latest HbA1c was 6.3 in March of this year. Systemically, he also has hyperlipidemia. He takes Flonase and Claritin as needed for seasonal allergies, metformin for his diabetes, and simvastatin for the hyperlipidemia. He has no allergies to medications.

Pupils, EOMs, confrontation fields are all normal. He is correctable to 20/20 with a mild prescription in each eye. Anterior segment is unremarkable and IOPs are 15/17 mm Hg OD/OS, respectively. Posterior segment findings are in the photos below:

As you can see, there’s no evidence of diabetic retinopathy, but there’s a significant hemorrhage on the rim of the optic disc of the right eye.

Given that this patient is only 47 years old, is this optic nerve hemorrhage likely related to glaucoma or not? What are some other causes of optic nerve hemorrhages? Does he fit the profile for any of these other differentials?

At the second visit, we obtained the following information:

Pachy: 619/620
Gonioscopy: CB 360 with 2+ pigment and normal approach OU
IOP 16/14 mm Hg
HVF 24-2:

Based on all the data you have after these two visits, now do you think this patient has glaucoma or no? How would you manage this patient? I’m looking forward to a lively discussion here. Thanks!

Summer salad

Summer time means it’s time for lots of fresh produce in northern California. What follows is a loose take on a fiesta bowl and making it into a salad version without the rice.

  • 2 tomatoes
  • 1 avocado
  • 1/2 cup corn kernels
  • 1/2 cup peas
  • sprinkle of cumin, salt, and pepper
  • splash of avocado oil

Now, normally I make a tomato and cucumber salad but when I went to Sprouts to get groceries, the avocado was calling out to me more this time. Mm, mm, mm… Especially when I used tortilla chips to help spoon this salad into my mouth. So yummy!

I thought about adding some hemp seeds as a topping later but was already almost done by the time I thought about it. Next time!

What are your go-to summer salads? It’s nice to have variety of lighter foods when it’s sunny and hot out and you don’t want to turn on the oven or cook anything. This one was good in that it’s light and fresh, yet left me feeling satisfied due to the avocado adding some good fats in. I hope you enjoy!

Directing Your Patients

Your time is valuable. Your time with each patient is valuable. You need to be able to connect with your patients and guide them along the exam as efficiently as possible.

So for me, that means I generally ask more pointed questions rather than leaving things too open ended and broad. Even as I sit patients in their exam chair, one of my first questions is “how is your vision doing in the distance and up close?” If they start going into how their eyes are feeling or anything else, I acknowledge their points but redirect them, informing them that there are two parts to the exam, the vision part and the health part, and that I want to check the vision part first.

Most patients respond favorably to that and voila, you’re back in control of an exam that could have led you down a strange rabbit hole. At this point, I’ll ask my vision related questions and do my initial confrontation testing. Here, I have found that holding the cover paddle myself means I make sure the patient’s eye is appropriately occluded and they can’t push the paddle up against their own eye. It gives them less change to fumble too. Typically, I only let a patient handle equipment during pinhole testing.

Next, I repeat that the next part of the exam is where we’ll be evaluating the patients’ vision status and needs. During refraction, I really try to keep in mind that patients’ incoming visual acuity and anticipating how much change is required to get them to see their best – if any changes are needed at all. I also keep in mind that a patient can only tolerate maybe 0.75 to 1.00 diopters or 20 degrees of change in any direction at any time from their starting point for my final refraction. With that in mind, I don’t typically keep a patient ‘accepting’ a certain direction if they keep saying it’s better after 3 or 4 options, as I know that’s usually going beyond what I’d be changing the prescription by anyway (unless it makes sense with their incoming visual acuity!).

Once refraction is complete and I have demoed their new prescription, I tell the patient that we’re switching gears and going into the ocular health portion of the exam next. This is where I’ll usually ask about how their eyes feel in general as well as their systemic health, medications, and allergies. Then I tell them I’m going to use eyedrops to check their eye pressure. When I explain that the eyedrops are necessary to help with evaluating their eye health, most patients are willing to comply. I do the same when I later go to dilate their eyes, explaining that it’s the best way for me to make sure their eyes are healthy and free of diseases like diabetes and glaucoma. For me, I have found that by explaining what I’m doing rather than making the ask if I can use eyedrops first, I find that more patients are willing to be dilated for their ocular health check. Too often, I have heard my interns ask first and their patients declining more as a result even after explaining the reasons why dilation is important.

Remember, I’m trying to get the patient to work with me. Most of your patients will want to cooperate if it’s in their best interest. They just want to be informed.

Overall, directing how your patients answer your questions can help streamline your exam. For example, when asking about headaches, rather than asking them to describe their symptoms off the top of their head, I go into specifics using questions like – Is it sharp, stinging, boring? Show me on your head where the pain is. Does this happen every day or few days? Does this happen when you’re doing something like reading or watching TV or when you’re walking around?

Of course, you want your conversations to still be in the flow and natural, and I don’t suggest that every patient response should be some kind of forced response. Incorporating more directed questions and limited patient options during key parts of the exam though can help you keep your exam moving in the direction you need it to go and uncover information that is important to your management and treatment plan.

Happy testing!

Patient case for July 7, 2023

I know we’ve been doing a lot of pediatric prescription cases lately (sorry, not sorry?), but here’s another one to get you thinking.

The patient is an 11 year old Hispanic female coming in for her first eye exam after failing a vision screening with her pediatrician. The patient reports that vision is blurry both distance and up close. She is otherwise healthy, has no allergies, and is not taking any medications.

Distance VA is OD 20/30-2, OS 20/40, and pinholes to 20/25 in each eye. Also, near VA is 0.4/0.5M-1 in each eye.

At this point, can you anticipate what kind of refractive error you’d expect here? Take a guess and keep those numbers handy.

Pupils, EOMs, confrontation fields are all normal. Cover test is ortho distance and near.

Auto-refraction results show:
OD: +0.75 -0.50 x 139
OS +1.25 -0.25 x 098

Refraction, however, yields you this:
OD: -0.75 -0.50 x 005  20/25
OS: -1.250 DS  20/30

Now what? The child is getting tired and annoyed at being here and she’s not feeling like she’s seeing dramatically better compared to when she first came in. What other testing should you do?

While the patient herself did not mention any headaches or eyestrain, a clue that this patient could have more binocular vision problems is the fact that her near visual acuities were also reduced. A minor amount of myopia or astigmatism really shouldn’t be enough to lose a whole line of acuity at near.

So we ended up checking accommodation. NPA on repetition was 8D, 7D, 5D with both eyes open. And after all that fatigue, NPC was 12cm. What are the patient’s age based norms for NPA and NPC?

We next dilated the patient with tropicamide and phenylephrine. Was cyclopentolate indicated for this exam? Would it have been wrong to use it?

Ocular health was unremarkable for both eyes.

Damp auto-refraction results were:
OD +1.25 -1.25 x 007
OS: +1.50 -2.50 x 171

What would you prescribe for this patient? What conditions are affecting this patient that you would discuss with mom about? And of course, what’s your follow up plan? Chime in below!

Apple, spinach, carrot juice

Time for a new juice!

This is another easy green juice to get together in just a few minutes. Seriously hydrating, seriously yummy. Seriously tastier than the bottled versions in the store.

  • green apple
  • half bunch spinach
  • 3 carrots

Now, a word about the amount of juice I’m getting. I’m in the habit of making single servings for myself because my mom, who we live with, doesn’t want to try the recipes, and my husband is often not home by the time I finish making my juice and there’s just none left for him. Because these are freshly made, it really is best to consume right away or within a few hours to minimize the oxidation of nutrients inside.

This juice is one where I bottled it for the next day because I had already made another juice just before and was trying to batch making juice. While it was still tasty, it definitely had already lost some of its ‘freshness’. Knowing how much came out of this recipe, I’ll probably double the batch for next time and just enjoy it that day.

Just my two cents. Do you have any favorite juices you make?

Play a guessing game

My attending doctor the summer of my third year asked us to guess our patients’ glasses prescriptions each time we walked them back to our room. There were no prizes or incentives for us to guess ‘right’, but what inadvertently happened was that started a path of guessing every part of the exam moving forward.

Sure, it’s one thing to peek at a person’s glasses when you first introduce yourself – obviously myopic lenses will look different from hyperopic lenses. And based on the patient’s age, I could guess if a patient was wearing progressives or not before I neutralized their prescription. I would guess the patient’s add if they were in a multi-focal design.

Taking that guessing game into the rest of the exam though, that was where the fun started and I believe that’s what helped me grow as a clinician. I was always anticipating what the next result would be and that kept me curious. Depending on the answers I got, that helped refine which way an exam would go.

Let’s say a middle-aged patient came in and off the bat says they can’t see well out of one eye. Immediately, I’ve broken things down categorically – can this be a refractive issue, a binocular vision issue, or related to some kind of ocular pathology? What question or set of questions can I ask to help me focus on a likely differential within the first few minutes of the exam?

Let’s say you go through your confrontation testing and the right eye is light perception and the left eye is a soft 20/20- without correction. EOMs are full but you notice a mild RAPD in the right eye. Also, when you’re doing pupil testing, you notice something white where the lens should be – the other eye seems clear. Confrontation fields are full for the left eye but he is unable to distinguish anything besides light in the right eye.

At this point, you probably have ruled out refractive error and binocular vision as a top differential to this patient’s poor vision. With that in mind, you should know anticipate that refraction really shouldn’t take you very long – big steps are likely not going to help the right eye and you should already guess that the left eye will have a very minimal prescription at all. Recommending an age appropriate add is likely okay here but your goal here was to get to dilation as quickly as possible to fully assess the patient’s ocular health.

As you’re dilating the patient, what can you anticipate about this patient’s ocular health? Does a white cataract account for light perception vision? What could have contributed to this patient’s cataract development in the right eye? Would you anticipate any lenticular changes in the left eye? What are some causes of asymmetric lens changes, especially if the patient (including this one) strongly denies any history of ocular trauma?

Take a different patient now who was last seen two years ago, was correctable to 20/20- in both eyes but already showed evidence of moderate nonproliferative diabetic retinopathy OU. If this patient came in and saw you today saying his vision in the right eye has been bad for the last year, what would you expect? There could be a refractive shift, sure, but less likely if it was only monocular. If I told you he came in needing extra help with walking because he had his left foot amputated from diabetic complications in the last couple months, what would you expect to see in terms of this patient’s ocular health?

Predicting what you’re going to find can help you decide if you need to spend time doing a thorough, careful refraction or performing different binocular vision tests or going straight to ocular health. You can also anticipate your patients’ concerns – is their vision going to get better, are they going to need a referral for surgery or other specialty care, are there any supplements or exercises that you’d recommend for their condition, etc.

Approaching exams this way has kept a lot of exams from feeling too ‘routine’, especially if I can force myself to give at least two two three differentials for whatever it is I’m finding. Besides, who can resist having fun in the exam room even if it’s a game you’re playing by yourself and no one else has to know?

Happy guessing!

Patient case for June 30, 2023

Today, let’s discuss this pediatric patient who came into the office for their first eye exam in the states after immigrating from Turkey. A previous eye doctor had let him know he had an eye turn and was given glasses. Mom says that the glasses helped the eye turn, but then the glasses were lost sometime in the last month. The patient is otherwise healthy, has no allergies, and is not taking any medications.

Pupils, confrontation fields, EOMs, and color vision are all normal. He did not appreciate randot stereoacuity and he reported 5 lights on worth 4 light.

Distance cover test reveals about 27pd left esotropia, whlie at near, it’s measured as 16pd left esotropia; the patient was uncorrected for both emasurements.

Uncorrected visual acuity is OD 20/20, OS 20/20.

Dry retinoscopy and refraction show:
OD: +0.75 DS  20/20-
OS: +1.25 -0.50 x 175  20/20

At this point, what drops would you use to dilate this patient and why? Can you review the different properties and effects of Tropicamide vs Cyclopentolate vs Phenylephrine?

~ ~ ~

We ended up using 1% Cyclopentolate for this patient and got the following results:
OD: +3.00 -0.50 x 180  20/20
OS: +3.75 – 0.50 x 170  20/20

All ocular health findings were normal.

What glasses prescription would you recommend for this patient? Given that the patient is 8 years old and able to see 20/20, what is your recommended follow up for this patient? If the patient were actually 5 years old, would any part of your management be different? And lastly, what are your thoughts around strabismus surgery in this case?

I’m looking forward to reading your thoughts.

Skip to content